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WO2002033391A1 - Systeme super accelere d"essai de produits - Google Patents

Systeme super accelere d"essai de produits Download PDF

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Publication number
WO2002033391A1
WO2002033391A1 PCT/US2001/032207 US0132207W WO0233391A1 WO 2002033391 A1 WO2002033391 A1 WO 2002033391A1 US 0132207 W US0132207 W US 0132207W WO 0233391 A1 WO0233391 A1 WO 0233391A1
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WO
WIPO (PCT)
Prior art keywords
space
coupled
chamber
control unit
source
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/US2001/032207
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English (en)
Inventor
Gregg K. Hobbs
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Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to AU2002213244A priority Critical patent/AU2002213244A1/en
Publication of WO2002033391A1 publication Critical patent/WO2002033391A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M7/00—Vibration-testing of structures; Shock-testing of structures
    • G01M7/02—Vibration-testing by means of a shake table
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light
    • G01N17/002—Test chambers

Definitions

  • This invention relates generally to measuring and testing products in simulated environments and particularly to apparatus for accelerated life-testing of products.
  • HALT highly-accelerated life tests
  • HASS highly-accelerated stress screens
  • HALT highly-accelerated stress tests
  • HAST highly-accelerated stress tests
  • HALT and HAST each allow the precipitation and detection of different, but somewhat overlapping, sets of flaws.
  • 6,005,404 discloses a test apparatus having a thermal chamber for testing products and partition-isolated auxiliary chamber in which ambient conditions prevail.
  • a flexible partition is interposed between the thermal and auxiliary chambers.
  • the products under test are in the thermal chamber and the monitoring equipment is in the auxiliary chamber.
  • U.S. Patent No. 5,969,256 discloses a modular vibration system which uses interchangeable modules to apply various multi-axis and multi-modal vibrations to products under test.
  • the invention is an apparatus for applying simultaneously to a product under test various combinations of constant or time-varying test parameters including temperature, pressure, humidity, vibration and corrosive atmosphere.
  • the apparatus also provides for applying rapidly changing test parameters to the product.
  • the apparatus comprises an environmental chamber having functional devices comprising heating and cooling heat exchangers, a moisture source, an air pressure source, a corrosive materials source and a vibration system (commonly called a shaker) with provisions for mounting the product under test.
  • functional devices comprising heating and cooling heat exchangers, a moisture source, an air pressure source, a corrosive materials source and a vibration system (commonly called a shaker) with provisions for mounting the product under test.
  • the chamber comprises two compartments, or spaces, separated by a compliant seal.
  • the first space is a controlled-environment space where the product under test is located.
  • the second space is an equalized-pressure space containing the vibration system comprising a vibration table, its actuators, compliant supports and associated hardware.
  • the compliant seal protects the vibration system from the severe environmental conditions imposed on the product under test.
  • the chamber comprises a single compartment, without a compliant seal and without an equalized-pressure space, having instead a corrosion-resistant vibration system.
  • the apparatus includes a control system for controlling the temperature, humidity, pressure and corrosive level of the controlled-environment space as well as the vibration conditions applied to the product.
  • the control system is coupled to the controlled-environment space and to all the functional devices to sense and maintain the desired conditions in the controlled-environment space. All the test conditions can be applied to the product simultaneously or individually or in any combination. Also, as well known in the art, products can be tested either passively (unpowered or inoperative) or dynamically (powered or in operation).
  • Figure 1 is a schematic diagram of a preferred embodiment of the invention.
  • Figure 2 is a diagram of product mounting devices.
  • Figure 3 is a block diagram of a control system.
  • FIG. 1 A preferred embodiment of the invention is shown in the schematic diagram of Fig.
  • a chamber 1 encloses a controlled-environment space 2 and an equalized-pressure space 21.
  • the product 3 being tested is mounted on a fixture or mounting plate 4 which is attached to a vibration table 6.
  • Vibration actuators 8 are attached to vibration table 6 which is supported by flexible supports 7 attached to chamber 1 .
  • a partition 9 enclosed within chamber 1 provides an air duct 45 for conditioning the air in space 2.
  • Enclosed within air duct 45 are a fan 10, a cooling heat exchanger 11 , a heating heat exchanger 12 and a moisture injector 13.
  • a drip pan 24 is located under the cooling exchanger 11 to capture condensation from the exchanger 11.
  • a moisture source 14 is attached to injector 13.
  • An air pressure source 15 is coupled to spaces 2 and 21 via pressure port 17 and equalizing port 20, respectively.
  • a moisture and corrosive barrier 16 separates space 2 from source 15 and port 20.
  • a corrosive material source 18 is coupled to space 2 via corrosive port 19.
  • a condensate drain 22 is located in a low point in space 2 and preferably is coupled to a condensate receptacle 23.
  • inlet door 24 and outlet door 25 are connected to partition 9.
  • Fan 10 is coupled to external motor 44.
  • FIG 2 is an enlarged view of a preferred attachment of compliant seal 5.
  • Seal 5 is clamped to each wall of chamber 1 and to vibration table 6 by preferably corrosion- resistant metal strips 26 held in place by corrosion resistant bolts 27 and nuts 28.
  • Preferably seal 5 covers the entire surface of vibration table 6.
  • Inserts 29 are screwed into table 6 to provide mounting points or fixtures for supporting product 3 while preventing leakage between seal 5 and table 6. Inserts 29, along with sealing washers 46, can also be used to clamp mounting plate 4 to seal 5.
  • mounting plate 4 or seal 5, or both are made of thermally insulating mate ⁇ al to minimize heat transfer from product 3 and space 2 into table 6 and space 21.
  • FIG. 3 is a block diagram of a control system used to operate the testing system of the invention.
  • the control system comprises a control unit 30 which is coupled to a temperature sensor 32, a humidity sensor 33, a vibration sensor 34, a pressure sensor 35 and a corrosive sensor 36. Preferably all the sensors are physically located within environment space 2 although it will be obvious to those skilled in the art of control systems that other locations can be used.
  • Control unit 30 is also coupled to a heat source 37, a heat sink 38, a moisture source 39, a vibration system 40, a pressure source 41 , a corrosive source 42 and a mechanical controller 43.
  • a control panel 31 is coupled to control unit 30 to provide an operator interface to the control system.
  • heat source 37 comprises heating heat exchanger 12; heat sink 38 comprises cooling heat exchanger 11 ; moisture source 39 comprises moisture injector 13 and moisture supply 14; vibration system 40 comprises table 6, supports 7 and actuators 8; pressure source 41 comprises pressure supply 15, barrier 16 and ports 17 and 20; corrosive source 42 comprises corrosive supply 18 and port 19; and mechanical controller 43 comprises fan motor 44, actuators for doors 24 and 25, and other miscellaneous hardware.
  • the control unit 30 can be programmed to operate elements 37-43 in the time sequence and duration necessary to perform a desired test. Also, control system 30 can control the output level of the various elements 37-43 as appropriate in response to feedback from sensors 32-36. Typically, control systems such as this are designed and built to perform tests for particular applications. The design of such control systems, along with their associated sensors, controllers and electromechanical devices, is well known to those skilled in the art of control systems and related software.
  • a product 3 is placed in the controlled-environment space 2 and mounted on the vibration table 6 by means of mounting plate 4 and inserts 29.
  • the chamber 1 is then closed and the environment in space 2 is thereafter controlled by various combinations of the following processes.
  • the temperature is controlled by activating fan 10 to circulate air in the chamber past the cooling and heating heat exchangers 11 and 12.
  • the heat exchangers can use any of several processes well known to those of ordinary skill in the art.
  • cooling can be accomplished by circulating a refrigerant from a conventional refrigeration system through the cooling exchanger or by passing liquid nitrogen through the exchanger.
  • heating can be accomplished by electrical heating elements in the exchanger, or by circulating fluids from a boiler or heat pump through the exchanger, as well as by combustion devices within or thermally coupled to the exchanger.
  • Humidity can be increased by injecting moisture from injector 13 into the circulating air downstream from heating exchanger 12.
  • Humidity can be decreased by cooling the circulating air with cooling exchanger 11 and condensing the vapor into drip pan 24.
  • the air can then be reheated downstream by heat exchanger 12 to maintain the desired temperature.
  • Pressure source 15 provides approximately equal pressure in both space 2 and space 21 to minimize the force acting on seal 5 and table 6.
  • Pressure source 15 can be bi-directional; that is, it can produce positive or negative pressure relative to the pressure outside the chamber.
  • Barrier 16 is a device preferably comprising a filter or desiccant, or both, for preventing moisture or corrosive atmospheres from being drawn from space 2 into source 15 or into equalizing space 21. Alternatively, if barrier 16 does not adequately prevent moisture or corrosive atmospheres from entering space 21 , port 20 can be separated from source 15 and barrier 16. Then a separate pressure source can be added and coupled to port 20 for providing clean air, or an inert gas such as nitrogen, to space 21. A differential pressure regulator can then be used to control the separate source or source 15, or both, to limit the pressure difference between spaces 2 and 21.
  • a corrosive atmosphere is produced by injecting corrosive materials from corrosive source 18 into space 2 via port 19.
  • a common corrosive is salt water but other corrosives such as acids or ozone can be used.
  • a condensate drain 22 and a sealed receptacle 23 can be used to collect and contain corrosive liquids which accumulate at low points in space 2.
  • the vibration system comprising vibration table 6, compliant supports 7 and actuators 8, along with power sources for the actuators (not shown), applies multi-axis vibration to the product 3 under test.
  • Compliant seal 5 protects table 6, its compliant supports 7 and its actuators 8 from the humidity and corrosive atmospheres in space 2.
  • compliant seal 5 covers the entire surface of table 6 and provides an air-tight, or hermetic, seal to the walls of chamber 1.
  • Strips 26 are bolted or screwed to the chamber walls and to table 6 to ensure that seal is tightly fastened in place. Sealants may also be used to ensure against leakage.
  • a corrosion resistant mounting plate 4 covers seal 5 in the area where products are mounted to protect the seal from damage when products are moved into and out of the chamber.
  • Inserts 29 are inserted into table 6 to provide rigid mounting points for attaching products or mounting fixtures to the table. Such inserts may also be used to attach mounting plate 4 to the table as shown in Fig.
  • the walls of chamber 1 are preferably insulated to minimize heat transfer between the chamber and its surroundings.
  • mounting plate 4 or compliant seal 5, or both, are preferably made of thermally-insulating material to minimize heat transfer between the product, along with the controlled-environment space, and the vibration system.
  • Fan motor 44 is preferably mounted outside of chamber 1 to protect it from extreme temperatures and corrosive atmospheres within the chamber. Motor 44 can be coupled to fan 10 via various well-known drive means capable of containing the environment in the chamber.
  • Liquid nitrogen if used for rapid cooling, is preferably not directly injected into the chamber. Instead, liquid nitrogen or other cold fluid is forced through cooling heat exchangers without introducing any material into the chamber which could affect the humidity, pressure or corrosive atmosphere.
  • humidity control is maintained via moisture injection to increase the humidity and via moisture removal, by cooling heat exchangers, to decrease humidity.
  • the cooling exchangers may form ice which can be removed from the chamber either as a solid or as a liquid. Reducing the moisture content of the controlled space while maintaining temperature is accomplished by collecting moisture on the cooling heat exchangers and simultaneously reheating the air downstream to maintain temperature. Increasing the humidity while maintaining temperature is accomplished by injecting moisture in the form of steam or atomized liquid preferably after preheating the air as necessary to maintain temperature.
  • defrost heaters can be provided in the cooling exchanger and the following procedure can be used. As ice forms on the cooling exchanger, periodically doors 24 and 25 can be closed and the heaters turned on to melt the ice. The water is then collected in the drip pan and removed via a drain or pump. If necessary, parallel air ducts and additional heat exchangers can be added and used to permit the cooling exchangers in one duct to be defrosted while those in the other are working.
  • Vibration can be accomplished by utilizing a vibration system of any type.
  • a vibration system using pneumatic actuators is illustrated in Fig. 1 although other types well known to those skilled in the art can be used.
  • the air to drive the pneumatic actuators is provided by an external source (not shown) and exhausted outside the chamber by an exhaust line (not shown) so that no pressure change is introduced by operation of the vibration system.
  • the compliant seal used to separate the area beneath the table from the controlled-environment-space can serve two purposes: first, to protect the vibration system from corrosive atmospheres, and second, to insulate the vibration system from temperature extremes.
  • Pressure balancing is accomplished by the pressure source which injects or removes clean, dry air or nitrogen from the space below the table as required to maintain the balance.
  • the compliant seal 5 in Fig. 1 is not used and spaces 2 and 21 become a single space.
  • all the critical components of the vibration system such as the table, its actuators and supports
  • all such exposed surfaces can be coated with various corrosion-resistant materials known to those skilled in the art of protective coatings.
  • the coating materials can provide thermal insulation, either by the inherent properties of the protective coatings or by laminating layers of insulating coatings or other materials between the exposed surfaces and the protective coatings.
  • Products under test can be monitored or powered by systems outside the controlled environment space via cables passed through the chamber walls or through the compliant seal or the vibration table if those systems are located in the equalized pressure space.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Environmental Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Ecology (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)

Abstract

L"invention concerne un caisson (1) climatique permettant de procéder à des essais de durée de vie accélérés de produits (3). Ce caisson comprend un réglage de la température, de l"humidité et de la pression qui est combiné à des vibrations et à des atmosphères agressives. Toutes ces conditions d"essai peuvent être appliquées simultanément et peuvent être constantes ou varier dans le temps.
PCT/US2001/032207 2000-10-16 2001-10-15 Systeme super accelere d"essai de produits Ceased WO2002033391A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2002213244A AU2002213244A1 (en) 2000-10-16 2001-10-15 Highly-accelerated product testing system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US69028100A 2000-10-16 2000-10-16
US09/690,281 2000-10-16

Publications (1)

Publication Number Publication Date
WO2002033391A1 true WO2002033391A1 (fr) 2002-04-25

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Family Applications (1)

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PCT/US2001/032207 Ceased WO2002033391A1 (fr) 2000-10-16 2001-10-15 Systeme super accelere d"essai de produits

Country Status (2)

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AU (1) AU2002213244A1 (fr)
WO (1) WO2002033391A1 (fr)

Cited By (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10248899A1 (de) * 2002-10-18 2004-05-06 Weiss Umwelttechnik Gmbh Prüfschrank
DE102005018142A1 (de) * 2005-04-20 2006-10-26 Airbus Deutschland Gmbh Klimakammer zur schnellen Erreichung und Aufrechterhaltung einer vorgegebenen Luftfeuchtigkeit und/oder einer vorgegebenen Temperatur sowie Verfahren
EP1326067A3 (fr) * 2001-12-27 2007-07-04 WEISS UMWELTTECHNIK GmbH Installation d'armoire pour test de vibration
DE102008046472A1 (de) * 2008-09-09 2010-03-11 VLM GmbH - Innovative Korrosionsprüftechnik, Labortechnik und Dienstleistungen Verfahren und Vorrichtung zur Erzeugung von Feuchtklimaten
US20100139908A1 (en) * 2008-12-04 2010-06-10 George Slessman Apparatus and Method of Environmental Condition Management for Electronic Equipment
US20100256824A1 (en) * 2009-03-06 2010-10-07 Nanolnk, Inc. Environmental control device
WO2010133722A1 (fr) * 2009-05-18 2010-11-25 Universidad De Cádiz Machine automatisée pour la réalisation d'essais d'immersions alternées
CN102023636A (zh) * 2010-12-03 2011-04-20 浙江理工大学 一种机床数控系统的加速寿命试验方法
FR2960972A1 (fr) * 2010-06-02 2011-12-09 Inst Francais Du Petrole Cellule et procede de test de vieillissement de materiaux
WO2012051746A1 (fr) * 2010-10-18 2012-04-26 东莞市升微机电设备科技有限公司 Boîtier de test à basse pression et haute ou basse température permettant de réguler l'humidité
US8240157B2 (en) 2006-05-22 2012-08-14 Airbus Operations Gmbh Climatic chamber and control method therefor
FR2983581A1 (fr) * 2011-12-01 2013-06-07 Thales Sa Ensemble de test d'au moins un composant
CN103162924A (zh) * 2011-12-08 2013-06-19 中国兵器工业集团第七0研究所 增压器涡轮叶片振动可靠性指标评价方法
JP2013217944A (ja) * 2013-08-01 2013-10-24 Espec Corp 断熱箱及び環境試験装置
CN104075861A (zh) * 2014-04-17 2014-10-01 东莞市众志检测仪器有限公司 一种温度、湿度、振动综合试验装置
CN104111153A (zh) * 2014-04-12 2014-10-22 宁波奥克斯空调有限公司 空调器随机振动综合测试装置及方法
DE102013014458A1 (de) * 2013-08-30 2015-03-05 Daimler Ag Vorrichtung zur Überprüfung der Korrosionsbeständigkeit eines Prüfkörpers
DE102013226735A1 (de) * 2013-12-19 2015-06-25 Robert Bosch Gmbh Prüfstand und Verfahren zur Bestimmung eines thermischen Verhaltens einer Zündkerze
JP2015125071A (ja) * 2013-12-26 2015-07-06 エスペック株式会社 環境試験装置
JP2016090532A (ja) * 2014-11-11 2016-05-23 株式会社日立製作所 カバー部材、このカバー部材の製造方法、及びこのカバー部材を使用したカバー構造体
FR3030745A1 (fr) * 2014-12-19 2016-06-24 Herakles Procede de determination de l'evolution d'un parametre mecanique d'un materiau lors de son vieillissement
CN106706251A (zh) * 2016-12-27 2017-05-24 苏州苏试试验仪器股份有限公司 一种防振动台内部凝露的三综合试验系统
US10184869B2 (en) 2013-10-15 2019-01-22 Virtus Precision Tube, Llc Apparatus and method for material testing
CN110927051A (zh) * 2019-11-13 2020-03-27 中国检验认证集团湖北有限公司 汽车管路耐高低温湿热环境振动液压伺服脉冲试验系统
CN111751066A (zh) * 2019-03-28 2020-10-09 爱斯佩克株式会社 环境试验装置、试验室部件和环境试验方法
JP2021096152A (ja) * 2019-12-17 2021-06-24 日本電子株式会社 恒温恒湿装置
CN114964755A (zh) * 2022-06-02 2022-08-30 中国兵器装备集团西南技术工程研究所 一种用于动力舱室综合环境因素模拟系统
CN119223609A (zh) * 2024-12-05 2024-12-31 温州冶金机械测试研究所 一种紧固件的防松性能检测装置及其检测方法

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3488681A (en) * 1967-08-07 1970-01-06 Tokyo Metroporitan Government Weather tester
US5318361A (en) * 1993-06-01 1994-06-07 Bell Communications Research, Inc. Rapid temperature cycling for accelerated stress testing
US5540109A (en) * 1992-11-05 1996-07-30 Qualmark Corporation Apparatus and method for thermal and vibrational stress screening
US5610344A (en) * 1992-09-09 1997-03-11 Nippon Yusen Kaisha Environmental test apparatus

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3488681A (en) * 1967-08-07 1970-01-06 Tokyo Metroporitan Government Weather tester
US5610344A (en) * 1992-09-09 1997-03-11 Nippon Yusen Kaisha Environmental test apparatus
US5540109A (en) * 1992-11-05 1996-07-30 Qualmark Corporation Apparatus and method for thermal and vibrational stress screening
US5318361A (en) * 1993-06-01 1994-06-07 Bell Communications Research, Inc. Rapid temperature cycling for accelerated stress testing

Cited By (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1326067A3 (fr) * 2001-12-27 2007-07-04 WEISS UMWELTTECHNIK GmbH Installation d'armoire pour test de vibration
DE10248899A1 (de) * 2002-10-18 2004-05-06 Weiss Umwelttechnik Gmbh Prüfschrank
DE102005018142A1 (de) * 2005-04-20 2006-10-26 Airbus Deutschland Gmbh Klimakammer zur schnellen Erreichung und Aufrechterhaltung einer vorgegebenen Luftfeuchtigkeit und/oder einer vorgegebenen Temperatur sowie Verfahren
DE102005018142B4 (de) * 2005-04-20 2011-04-28 Airbus Operations Gmbh Klimakammer zur schnellen Erreichung und Aufrechterhaltung einer vorgegebenen Luftfeuchtigkeit und/oder einer vorgegebenen Temperatur
US8240157B2 (en) 2006-05-22 2012-08-14 Airbus Operations Gmbh Climatic chamber and control method therefor
DE102008046472A1 (de) * 2008-09-09 2010-03-11 VLM GmbH - Innovative Korrosionsprüftechnik, Labortechnik und Dienstleistungen Verfahren und Vorrichtung zur Erzeugung von Feuchtklimaten
DE102008046472B4 (de) * 2008-09-09 2013-08-22 VLM GmbH - Innovative Korrosionsprüftechnik, Labortechnik und Dienstleistungen Verfahren und Vorrichtung zur Erzeugung von Feuchtklimaten
US20100139908A1 (en) * 2008-12-04 2010-06-10 George Slessman Apparatus and Method of Environmental Condition Management for Electronic Equipment
US8783336B2 (en) * 2008-12-04 2014-07-22 Io Data Centers, Llc Apparatus and method of environmental condition management for electronic equipment
US20100256824A1 (en) * 2009-03-06 2010-10-07 Nanolnk, Inc. Environmental control device
ES2375898A1 (es) * 2009-05-18 2012-03-07 Universidad De Cádiz Máquina automatizada para la realización de ensayos a inmersión alternada.
WO2010133722A1 (fr) * 2009-05-18 2010-11-25 Universidad De Cádiz Machine automatisée pour la réalisation d'essais d'immersions alternées
FR2960972A1 (fr) * 2010-06-02 2011-12-09 Inst Francais Du Petrole Cellule et procede de test de vieillissement de materiaux
WO2012051746A1 (fr) * 2010-10-18 2012-04-26 东莞市升微机电设备科技有限公司 Boîtier de test à basse pression et haute ou basse température permettant de réguler l'humidité
US9176506B2 (en) 2010-10-18 2015-11-03 Dongguan City Simplewell Technology Co., Ltd. Low pressure and high-low temperature test box capable of controlling humidity
CN102023636A (zh) * 2010-12-03 2011-04-20 浙江理工大学 一种机床数控系统的加速寿命试验方法
FR2983581A1 (fr) * 2011-12-01 2013-06-07 Thales Sa Ensemble de test d'au moins un composant
CN103162924A (zh) * 2011-12-08 2013-06-19 中国兵器工业集团第七0研究所 增压器涡轮叶片振动可靠性指标评价方法
JP2013217944A (ja) * 2013-08-01 2013-10-24 Espec Corp 断熱箱及び環境試験装置
DE102013014458A1 (de) * 2013-08-30 2015-03-05 Daimler Ag Vorrichtung zur Überprüfung der Korrosionsbeständigkeit eines Prüfkörpers
US10184869B2 (en) 2013-10-15 2019-01-22 Virtus Precision Tube, Llc Apparatus and method for material testing
DE102013226735A1 (de) * 2013-12-19 2015-06-25 Robert Bosch Gmbh Prüfstand und Verfahren zur Bestimmung eines thermischen Verhaltens einer Zündkerze
JP2015125071A (ja) * 2013-12-26 2015-07-06 エスペック株式会社 環境試験装置
CN104111153A (zh) * 2014-04-12 2014-10-22 宁波奥克斯空调有限公司 空调器随机振动综合测试装置及方法
CN104075861A (zh) * 2014-04-17 2014-10-01 东莞市众志检测仪器有限公司 一种温度、湿度、振动综合试验装置
JP2016090532A (ja) * 2014-11-11 2016-05-23 株式会社日立製作所 カバー部材、このカバー部材の製造方法、及びこのカバー部材を使用したカバー構造体
FR3030745A1 (fr) * 2014-12-19 2016-06-24 Herakles Procede de determination de l'evolution d'un parametre mecanique d'un materiau lors de son vieillissement
CN106706251A (zh) * 2016-12-27 2017-05-24 苏州苏试试验仪器股份有限公司 一种防振动台内部凝露的三综合试验系统
CN106706251B (zh) * 2016-12-27 2023-12-22 苏州苏试试验集团股份有限公司 一种防振动台内部凝露的三综合试验系统
CN111751066A (zh) * 2019-03-28 2020-10-09 爱斯佩克株式会社 环境试验装置、试验室部件和环境试验方法
CN110927051A (zh) * 2019-11-13 2020-03-27 中国检验认证集团湖北有限公司 汽车管路耐高低温湿热环境振动液压伺服脉冲试验系统
CN110927051B (zh) * 2019-11-13 2022-02-08 中国检验认证集团湖北有限公司 汽车管路耐高低温湿热环境振动液压伺服脉冲试验系统
JP2021096152A (ja) * 2019-12-17 2021-06-24 日本電子株式会社 恒温恒湿装置
JP7285769B2 (ja) 2019-12-17 2023-06-02 日本電子株式会社 恒温恒湿装置
CN114964755A (zh) * 2022-06-02 2022-08-30 中国兵器装备集团西南技术工程研究所 一种用于动力舱室综合环境因素模拟系统
CN119223609A (zh) * 2024-12-05 2024-12-31 温州冶金机械测试研究所 一种紧固件的防松性能检测装置及其检测方法

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