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WO1995033972A1 - Dispositif et procede d'alignement par laser a lumiere verte - Google Patents

Dispositif et procede d'alignement par laser a lumiere verte Download PDF

Info

Publication number
WO1995033972A1
WO1995033972A1 PCT/US1995/006127 US9506127W WO9533972A1 WO 1995033972 A1 WO1995033972 A1 WO 1995033972A1 US 9506127 W US9506127 W US 9506127W WO 9533972 A1 WO9533972 A1 WO 9533972A1
Authority
WO
WIPO (PCT)
Prior art keywords
laser
light
reference beam
recited
providing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/US1995/006127
Other languages
English (en)
Inventor
Daniel Richard Klemer
Pliny Scott Hawthorn
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Trimble Inc
Original Assignee
Spectra Physics LaserPlane Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Spectra Physics LaserPlane Inc filed Critical Spectra Physics LaserPlane Inc
Publication of WO1995033972A1 publication Critical patent/WO1995033972A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C15/00—Surveying instruments or accessories not provided for in groups G01C1/00 - G01C13/00
    • G01C15/002—Active optical surveying means
    • G01C15/004—Reference lines, planes or sectors

Definitions

  • the present invention generally relates to laser-based alignment systems which generate reference beams of light and, more particularly, to a laser alignment system and method wherein a beam of light in the green portion of the optical spectrum is provided as a reference.
  • the reference beam of light may be viewed on the objects to be aligned, on a visual optical target, or on an active optical target.
  • active optical targets are disclosed in commonly assigned U.S. Patent Nos. 4,907,874 and 5,095,629, the disclosures of which are hereby incorporated by reference.
  • Each optical target detects and displays the position of the reference beam of light with respect to the target.
  • a worker can use the optical target in conjunction with the reference beam of light to position walls, moldings and the like.
  • such laser alignment systems have primarily employed gas or semiconductor lasers which emit light in the red portion of the optical spectrum (approximately 630-700 nm) . Consequently, the optical targets have heretofore been designed to detect incident light in the red portion of the optical spectrum.
  • the use of light in the red portion of the optical spectrum has created various problems. For instance, high power levels are needed to emit a red light beam with sufficient brightness to be readily viewed by the human eye. Power levels which are too high can be hazardous to operators of the system. For instance, prolonged exposure to high powered laser beams may result in various eye injuries. In view of the potential health hazards, federal and international regulatory agencies have strictly regulated the construction and use of lasers.
  • a laser alignment system includes a laser transmitter which generates a reference beam of light along a predetermined path.
  • the reference beam of light has wavelengths substantially in the green portion of the optical spectrum.
  • the laser transmitter may generate a stationary reference beam of light, a rotating reference beam of light or both.
  • the wavelengths of the beam of light are between 510 nanometers and 570 nanometers.
  • the reference beam of light may be generated by a solid-state laser, a frequency- doubled solid-state laser, a gas laser such as a HeNe laser, a semiconductor laser diode or any other laser which can produce light in the green portion of the optical spectrum.
  • a laser receiver receives the reference beam of light and indicates the relative position of the reference beam of light on the laser receiver to assist in aligning ceilings, beams and other objects.
  • the laser receiver includes a green light detector for detecting light of the wavelength produced by the transmitter.
  • the Green light detector may include tinted glass which filters non-green light wavelengths.
  • the laser receiver may include an indicator for indicating, either visually or audibly, the relative position of the reference beam of light on the laser receiver.
  • a method for defining a reference position in a construction site comprises the steps of: providing a laser transmitter for generating a reference beam of light at ' a known relationship to the reference position, the reference beam of light having wavelengths substantially in the green portion of the optical spectrum; and using the reference beam of light as the reference position during construction.
  • the step of using the reference beam of light may comprise the steps of: providing a laser receiver for determining the relative position of the reference beam of light; and using the laser receiver to determine the position of the reference beam of light.
  • Fig. 1 is a perspective view of an exemplary laser transmitter in accordance with the present invention
  • Fig. 2 is a front view of an optical target which may be used in conjunction with the laser transmitter to detect the position of a beam of light in accordance with the present invention
  • Fig. 3 is a graphical representation of the relationship between the visibility of a beam of light at distance and the wavelength of the beam of light.
  • a laser alignment system in accordance with the present invention consists of a laser transmitter 100, shown in Fig. 1, and a laser receiver 200, shown in Fig. 2.
  • the laser transmitter 100 simultaneously generates a stationary reference beam of light 102 and a moving reference beam of light 104.
  • the moving beam of light 104 rotates in a plane generally normal to the stationary reference beam 10.2.
  • the laser transmitter 100 is similar to that disclosed in U.S. Patent No. 4,676,598 issued to Markley et al. which has been incorporated by reference herein. It should be understood that the laser transmitter 100 is exemplary and any laser transmitter which produces one or more reference beams of light may be advantageously employed in .the present invention.
  • Housing 106 of the laser transmitter 100 includes a laser source which produces a beam of light having wavelengths substantially in the green portion of the optical spectrum.
  • green light generally has wavelengths between 510 nanometers and 570 nanometers.
  • the laser source may be any of a number of designs which produce green light.
  • the laser source may be a frequency-doubled solid-state laser, a gas laser such as a helium-neon green laser or a semiconductor green laser diode.
  • One particularly suitable laser source for example, is disclosed in U.S. Patent Application Serial No. 08/253,072 filed June 2, 1994, entitled "SOLID-STATE LASER" by Sobottke, et al. , the disclosure of which is hereby incorporated by reference.
  • the relative response of the human eye to the visible wavelengths of light has been well documented.
  • the overall brightness of a laser beam at working distances beyond the beam's Rayleigh range is given by the equation:
  • V( ⁇ ) is the relative spectral response of the human eye
  • ⁇ is the beam wavelength
  • K is a constant of proportionality
  • P is beam power.
  • a graphical representation of the relationship between visibility at distance and wavelength is shown in Fig. 3. The graph has been normalized such that the visibility (or brightness) of a laser with a wavelength of 633 nm (red) has a value of 1. As is apparent from Fig. 3, a laser operating between 525 and 570 nm (green) requires approximately one-fifth the power of a laser operating at 633 nm (red) to appear equally as bright.
  • the stationary reference beam 102 emerges through an opening 108 in a cap plate 110 of the transmitter 100.
  • Moving reference beam 104 passes through glass windows 112 positioned around the circumference of the housing 106. Since the structure and philosophy of the internal operation of the laser transmitter are not important to the present invention beyond the generation of a reference beam of light in the green portion of the optical spectrum, they will not be further described herein.
  • the laser receiver 200 includes a photodetector assembly which detects a beam of light incident to a window or aperture 202 defined by the transmitter case 204, as shown in Fig. 2.
  • a control knob 205 operates the power to the receiver 200.
  • a green light detector 206 is provided to enhance the contrast of the green reference beam of light against ambient light.
  • the green light detector 206 may consist of a substantially transparent material having a green tint which is transparent to light in the green portion of the optical spectrum. Numerous tinted materials for filtering particular wavelengths are well known in the art and, therefore, will not be further discussed hereinafter.
  • An indicator shown as display 208, visually indicates the relative position of the incident reference beam of light on the window 202. Specifically, the display 208 indicates whether the light is above, below or within a reference band centered in the window 206.
  • the display 208 which may for example be an LCD display, includes a pair of arrows 210, 212 and a bar 214. Arrows 210, 212 are displayed if the reference beam is below or above the reference band. Bar 214 is displayed if the reference beam is within the reference band.
  • the structure and philosophy of the internal operation of the laser receiver 200 is fully described in U.S. 4,907,874 which was previously incorporated by reference and, therefore, will not be discussed herein.
  • the laser receiver shown in Fig. 2 is exemplary and any laser receiver which detects the relative position of a reference beam of light may be advantageously employed in the present invention.
  • the laser transmitter is positioned so as to generate one or more reference beams of light at known relationships to the reference position.
  • the reference beams of light have wavelengths in the green portion of the optical spectrum.
  • the reference beams of light are used as a reference position in positioning objects during construction.
  • a laser receiver may be used to determine the relative position of the reference beams of light when positioning objects relative to the reference beams.
  • the laser receiver preferably enhances light substantially in the green portion of the optical spectrum.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Optical Communication System (AREA)

Abstract

La présente invention concerne un dispositif et un procédé d'alignement utilisant comme position de référence un faisceau laser dans la plage des verts du spectre optique. Un émetteur laser (100) génère un faisceau lumineux vert stationnaire (102) ou rotatif (104) le long d'un axe ou d'un plan de référence prédéterminé. L'émetteur laser (100) peut être constitué d'un laser à semi-conducteurs double fréquence à gaz de type HeNe vert ou un laser à semi-conducteurs transistorisé vert à diode. Le faisceau lumineux de référence est visualisable directement sur les objets à positionner ou sur une cible optique conçue à cette fin. La cible optique détecte et affiche l'emplacement du faisceau de lumière verte par rapport à la cible. Dans un mode de réalisation préféré, la cible optique renforce le contraste du faisceau lumineux vert de référence par rapport à la lumière ambiante.
PCT/US1995/006127 1994-06-02 1995-05-12 Dispositif et procede d'alignement par laser a lumiere verte Ceased WO1995033972A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US25294594A 1994-06-02 1994-06-02
US08/252,945 1994-06-02

Publications (1)

Publication Number Publication Date
WO1995033972A1 true WO1995033972A1 (fr) 1995-12-14

Family

ID=22958201

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1995/006127 Ceased WO1995033972A1 (fr) 1994-06-02 1995-05-12 Dispositif et procede d'alignement par laser a lumiere verte

Country Status (1)

Country Link
WO (1) WO1995033972A1 (fr)

Cited By (49)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6622392B1 (en) 1999-03-19 2003-09-23 Laser Alignment, Inc. Target with diffractive elements for use with laser beam generating devices
US7266898B2 (en) 2001-02-23 2007-09-11 Black & Decker Inc. Laser level
EP2208018A4 (fr) * 2007-11-02 2011-03-30 Bosch Tool Corp Dispositif de mise à niveau utilisant un laser à faisceau vert
US9541610B2 (en) 2015-02-04 2017-01-10 Lockheed Martin Corporation Apparatus and method for recovery of three dimensional magnetic field from a magnetic detection system
US9551763B1 (en) 2016-01-21 2017-01-24 Lockheed Martin Corporation Diamond nitrogen vacancy sensor with common RF and magnetic fields generator
US9557391B2 (en) 2015-01-23 2017-01-31 Lockheed Martin Corporation Apparatus and method for high sensitivity magnetometry measurement and signal processing in a magnetic detection system
US9590601B2 (en) 2014-04-07 2017-03-07 Lockheed Martin Corporation Energy efficient controlled magnetic field generator circuit
US9614589B1 (en) 2015-12-01 2017-04-04 Lockheed Martin Corporation Communication via a magnio
US9638821B2 (en) 2014-03-20 2017-05-02 Lockheed Martin Corporation Mapping and monitoring of hydraulic fractures using vector magnetometers
WO2017127097A1 (fr) * 2016-01-21 2017-07-27 Lockheed Martin Corporation Magnétomètre doté d'une diode électroluminescente
US9720055B1 (en) 2016-01-21 2017-08-01 Lockheed Martin Corporation Magnetometer with light pipe
US9824597B2 (en) 2015-01-28 2017-11-21 Lockheed Martin Corporation Magnetic navigation methods and systems utilizing power grid and communication network
US9823313B2 (en) 2016-01-21 2017-11-21 Lockheed Martin Corporation Diamond nitrogen vacancy sensor with circuitry on diamond
US9829545B2 (en) 2015-11-20 2017-11-28 Lockheed Martin Corporation Apparatus and method for hypersensitivity detection of magnetic field
US9835693B2 (en) 2016-01-21 2017-12-05 Lockheed Martin Corporation Higher magnetic sensitivity through fluorescence manipulation by phonon spectrum control
US9845153B2 (en) 2015-01-28 2017-12-19 Lockheed Martin Corporation In-situ power charging
US9853837B2 (en) 2014-04-07 2017-12-26 Lockheed Martin Corporation High bit-rate magnetic communication
EP3276304A1 (fr) * 2016-07-28 2018-01-31 Robert Bosch Company Limited Outil de nivellement laser avec régulation thermique adaptative
US9910105B2 (en) 2014-03-20 2018-03-06 Lockheed Martin Corporation DNV magnetic field detector
US9910104B2 (en) 2015-01-23 2018-03-06 Lockheed Martin Corporation DNV magnetic field detector
US10012704B2 (en) 2015-11-04 2018-07-03 Lockheed Martin Corporation Magnetic low-pass filter
US10088336B2 (en) 2016-01-21 2018-10-02 Lockheed Martin Corporation Diamond nitrogen vacancy sensed ferro-fluid hydrophone
US10088452B2 (en) 2016-01-12 2018-10-02 Lockheed Martin Corporation Method for detecting defects in conductive materials based on differences in magnetic field characteristics measured along the conductive materials
US10120039B2 (en) 2015-11-20 2018-11-06 Lockheed Martin Corporation Apparatus and method for closed loop processing for a magnetic detection system
US10126377B2 (en) 2016-05-31 2018-11-13 Lockheed Martin Corporation Magneto-optical defect center magnetometer
US10145910B2 (en) 2017-03-24 2018-12-04 Lockheed Martin Corporation Photodetector circuit saturation mitigation for magneto-optical high intensity pulses
US10168393B2 (en) 2014-09-25 2019-01-01 Lockheed Martin Corporation Micro-vacancy center device
US10228429B2 (en) 2017-03-24 2019-03-12 Lockheed Martin Corporation Apparatus and method for resonance magneto-optical defect center material pulsed mode referencing
US10241158B2 (en) 2015-02-04 2019-03-26 Lockheed Martin Corporation Apparatus and method for estimating absolute axes' orientations for a magnetic detection system
US10274550B2 (en) 2017-03-24 2019-04-30 Lockheed Martin Corporation High speed sequential cancellation for pulsed mode
US10281550B2 (en) 2016-11-14 2019-05-07 Lockheed Martin Corporation Spin relaxometry based molecular sequencing
US10317279B2 (en) 2016-05-31 2019-06-11 Lockheed Martin Corporation Optical filtration system for diamond material with nitrogen vacancy centers
US10330744B2 (en) * 2017-03-24 2019-06-25 Lockheed Martin Corporation Magnetometer with a waveguide
US10338164B2 (en) 2017-03-24 2019-07-02 Lockheed Martin Corporation Vacancy center material with highly efficient RF excitation
US10338162B2 (en) 2016-01-21 2019-07-02 Lockheed Martin Corporation AC vector magnetic anomaly detection with diamond nitrogen vacancies
US10338163B2 (en) 2016-07-11 2019-07-02 Lockheed Martin Corporation Multi-frequency excitation schemes for high sensitivity magnetometry measurement with drift error compensation
US10345396B2 (en) 2016-05-31 2019-07-09 Lockheed Martin Corporation Selected volume continuous illumination magnetometer
US10345395B2 (en) 2016-12-12 2019-07-09 Lockheed Martin Corporation Vector magnetometry localization of subsurface liquids
US10359479B2 (en) 2017-02-20 2019-07-23 Lockheed Martin Corporation Efficient thermal drift compensation in DNV vector magnetometry
US10371760B2 (en) 2017-03-24 2019-08-06 Lockheed Martin Corporation Standing-wave radio frequency exciter
US10371765B2 (en) 2016-07-11 2019-08-06 Lockheed Martin Corporation Geolocation of magnetic sources using vector magnetometer sensors
US10379174B2 (en) 2017-03-24 2019-08-13 Lockheed Martin Corporation Bias magnet array for magnetometer
US10408890B2 (en) 2017-03-24 2019-09-10 Lockheed Martin Corporation Pulsed RF methods for optimization of CW measurements
US10459041B2 (en) 2017-03-24 2019-10-29 Lockheed Martin Corporation Magnetic detection system with highly integrated diamond nitrogen vacancy sensor
US10520558B2 (en) 2016-01-21 2019-12-31 Lockheed Martin Corporation Diamond nitrogen vacancy sensor with nitrogen-vacancy center diamond located between dual RF sources
US10527746B2 (en) 2016-05-31 2020-01-07 Lockheed Martin Corporation Array of UAVS with magnetometers
US10571530B2 (en) 2016-05-31 2020-02-25 Lockheed Martin Corporation Buoy array of magnetometers
US10677953B2 (en) 2016-05-31 2020-06-09 Lockheed Martin Corporation Magneto-optical detecting apparatus and methods
EP4235096A1 (fr) * 2021-12-17 2023-08-30 Stanley Black & Decker, Inc. Niveau laser à visibilité améliorée

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US3937968A (en) * 1969-05-02 1976-02-10 Singlepoint U.S.A. Inc. Optical aiming device employing radioluminous material
US4676598A (en) * 1985-05-15 1987-06-30 Spectra-Physics, Inc. Multiple reference laser beam apparatus
US4907874A (en) * 1988-08-05 1990-03-13 Spectra-Physics, Inc. Detection and display device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3937968A (en) * 1969-05-02 1976-02-10 Singlepoint U.S.A. Inc. Optical aiming device employing radioluminous material
US4676598A (en) * 1985-05-15 1987-06-30 Spectra-Physics, Inc. Multiple reference laser beam apparatus
US4676598B1 (en) * 1985-05-15 1996-05-21 Spectra Physics Laserplane Inc Multiple reference laser beam apparatus
US4907874A (en) * 1988-08-05 1990-03-13 Spectra-Physics, Inc. Detection and display device

Cited By (63)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6622392B1 (en) 1999-03-19 2003-09-23 Laser Alignment, Inc. Target with diffractive elements for use with laser beam generating devices
US7266898B2 (en) 2001-02-23 2007-09-11 Black & Decker Inc. Laser level
EP2208018A4 (fr) * 2007-11-02 2011-03-30 Bosch Tool Corp Dispositif de mise à niveau utilisant un laser à faisceau vert
US8011105B2 (en) 2007-11-02 2011-09-06 Robert Bosch Tool Corporation Green beam laser level device
US9910105B2 (en) 2014-03-20 2018-03-06 Lockheed Martin Corporation DNV magnetic field detector
US10725124B2 (en) 2014-03-20 2020-07-28 Lockheed Martin Corporation DNV magnetic field detector
US9638821B2 (en) 2014-03-20 2017-05-02 Lockheed Martin Corporation Mapping and monitoring of hydraulic fractures using vector magnetometers
US9823381B2 (en) 2014-03-20 2017-11-21 Lockheed Martin Corporation Mapping and monitoring of hydraulic fractures using vector magnetometers
US10277208B2 (en) 2014-04-07 2019-04-30 Lockheed Martin Corporation Energy efficient controlled magnetic field generator circuit
US9853837B2 (en) 2014-04-07 2017-12-26 Lockheed Martin Corporation High bit-rate magnetic communication
US9590601B2 (en) 2014-04-07 2017-03-07 Lockheed Martin Corporation Energy efficient controlled magnetic field generator circuit
US10168393B2 (en) 2014-09-25 2019-01-01 Lockheed Martin Corporation Micro-vacancy center device
US9557391B2 (en) 2015-01-23 2017-01-31 Lockheed Martin Corporation Apparatus and method for high sensitivity magnetometry measurement and signal processing in a magnetic detection system
US9910104B2 (en) 2015-01-23 2018-03-06 Lockheed Martin Corporation DNV magnetic field detector
US10466312B2 (en) 2015-01-23 2019-11-05 Lockheed Martin Corporation Methods for detecting a magnetic field acting on a magneto-optical detect center having pulsed excitation
US9824597B2 (en) 2015-01-28 2017-11-21 Lockheed Martin Corporation Magnetic navigation methods and systems utilizing power grid and communication network
US9845153B2 (en) 2015-01-28 2017-12-19 Lockheed Martin Corporation In-situ power charging
US10241158B2 (en) 2015-02-04 2019-03-26 Lockheed Martin Corporation Apparatus and method for estimating absolute axes' orientations for a magnetic detection system
US10408889B2 (en) 2015-02-04 2019-09-10 Lockheed Martin Corporation Apparatus and method for recovery of three dimensional magnetic field from a magnetic detection system
US9541610B2 (en) 2015-02-04 2017-01-10 Lockheed Martin Corporation Apparatus and method for recovery of three dimensional magnetic field from a magnetic detection system
US10012704B2 (en) 2015-11-04 2018-07-03 Lockheed Martin Corporation Magnetic low-pass filter
US10120039B2 (en) 2015-11-20 2018-11-06 Lockheed Martin Corporation Apparatus and method for closed loop processing for a magnetic detection system
US9829545B2 (en) 2015-11-20 2017-11-28 Lockheed Martin Corporation Apparatus and method for hypersensitivity detection of magnetic field
US10333588B2 (en) 2015-12-01 2019-06-25 Lockheed Martin Corporation Communication via a magnio
US9614589B1 (en) 2015-12-01 2017-04-04 Lockheed Martin Corporation Communication via a magnio
US10088452B2 (en) 2016-01-12 2018-10-02 Lockheed Martin Corporation Method for detecting defects in conductive materials based on differences in magnetic field characteristics measured along the conductive materials
GB2562958A (en) * 2016-01-21 2018-11-28 Lockheed Corp Magnetometer with a light emitting diode
US9720055B1 (en) 2016-01-21 2017-08-01 Lockheed Martin Corporation Magnetometer with light pipe
US10006973B2 (en) 2016-01-21 2018-06-26 Lockheed Martin Corporation Magnetometer with a light emitting diode
WO2017127097A1 (fr) * 2016-01-21 2017-07-27 Lockheed Martin Corporation Magnétomètre doté d'une diode électroluminescente
US10520558B2 (en) 2016-01-21 2019-12-31 Lockheed Martin Corporation Diamond nitrogen vacancy sensor with nitrogen-vacancy center diamond located between dual RF sources
US9835694B2 (en) 2016-01-21 2017-12-05 Lockheed Martin Corporation Higher magnetic sensitivity through fluorescence manipulation by phonon spectrum control
US9551763B1 (en) 2016-01-21 2017-01-24 Lockheed Martin Corporation Diamond nitrogen vacancy sensor with common RF and magnetic fields generator
US9835693B2 (en) 2016-01-21 2017-12-05 Lockheed Martin Corporation Higher magnetic sensitivity through fluorescence manipulation by phonon spectrum control
US10338162B2 (en) 2016-01-21 2019-07-02 Lockheed Martin Corporation AC vector magnetic anomaly detection with diamond nitrogen vacancies
US9823313B2 (en) 2016-01-21 2017-11-21 Lockheed Martin Corporation Diamond nitrogen vacancy sensor with circuitry on diamond
US10088336B2 (en) 2016-01-21 2018-10-02 Lockheed Martin Corporation Diamond nitrogen vacancy sensed ferro-fluid hydrophone
US9823314B2 (en) 2016-01-21 2017-11-21 Lockheed Martin Corporation Magnetometer with a light emitting diode
US9817081B2 (en) 2016-01-21 2017-11-14 Lockheed Martin Corporation Magnetometer with light pipe
US10317279B2 (en) 2016-05-31 2019-06-11 Lockheed Martin Corporation Optical filtration system for diamond material with nitrogen vacancy centers
US10345396B2 (en) 2016-05-31 2019-07-09 Lockheed Martin Corporation Selected volume continuous illumination magnetometer
US10126377B2 (en) 2016-05-31 2018-11-13 Lockheed Martin Corporation Magneto-optical defect center magnetometer
US10527746B2 (en) 2016-05-31 2020-01-07 Lockheed Martin Corporation Array of UAVS with magnetometers
US10571530B2 (en) 2016-05-31 2020-02-25 Lockheed Martin Corporation Buoy array of magnetometers
US10677953B2 (en) 2016-05-31 2020-06-09 Lockheed Martin Corporation Magneto-optical detecting apparatus and methods
US10338163B2 (en) 2016-07-11 2019-07-02 Lockheed Martin Corporation Multi-frequency excitation schemes for high sensitivity magnetometry measurement with drift error compensation
US10371765B2 (en) 2016-07-11 2019-08-06 Lockheed Martin Corporation Geolocation of magnetic sources using vector magnetometer sensors
EP3276304B1 (fr) 2016-07-28 2019-06-19 Robert Bosch Co, Ltd. Outil de nivellement laser avec régulation thermique adaptative
US10591296B2 (en) 2016-07-28 2020-03-17 Robert Bosch Co., Ltd. Laser leveling tool with adaptive thermal control
EP3276304A1 (fr) * 2016-07-28 2018-01-31 Robert Bosch Company Limited Outil de nivellement laser avec régulation thermique adaptative
US10281550B2 (en) 2016-11-14 2019-05-07 Lockheed Martin Corporation Spin relaxometry based molecular sequencing
US10345395B2 (en) 2016-12-12 2019-07-09 Lockheed Martin Corporation Vector magnetometry localization of subsurface liquids
US10359479B2 (en) 2017-02-20 2019-07-23 Lockheed Martin Corporation Efficient thermal drift compensation in DNV vector magnetometry
US10274550B2 (en) 2017-03-24 2019-04-30 Lockheed Martin Corporation High speed sequential cancellation for pulsed mode
US10459041B2 (en) 2017-03-24 2019-10-29 Lockheed Martin Corporation Magnetic detection system with highly integrated diamond nitrogen vacancy sensor
US10408890B2 (en) 2017-03-24 2019-09-10 Lockheed Martin Corporation Pulsed RF methods for optimization of CW measurements
US10379174B2 (en) 2017-03-24 2019-08-13 Lockheed Martin Corporation Bias magnet array for magnetometer
US10371760B2 (en) 2017-03-24 2019-08-06 Lockheed Martin Corporation Standing-wave radio frequency exciter
US10338164B2 (en) 2017-03-24 2019-07-02 Lockheed Martin Corporation Vacancy center material with highly efficient RF excitation
US10330744B2 (en) * 2017-03-24 2019-06-25 Lockheed Martin Corporation Magnetometer with a waveguide
US10228429B2 (en) 2017-03-24 2019-03-12 Lockheed Martin Corporation Apparatus and method for resonance magneto-optical defect center material pulsed mode referencing
US10145910B2 (en) 2017-03-24 2018-12-04 Lockheed Martin Corporation Photodetector circuit saturation mitigation for magneto-optical high intensity pulses
EP4235096A1 (fr) * 2021-12-17 2023-08-30 Stanley Black & Decker, Inc. Niveau laser à visibilité améliorée

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