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An environmental chamber, also called climatic chamber or climate chamber, is an enclosure used to test the effects of specified environmental conditions on biological items, industrial products, materials, and electronic devices and components. Such a chamber can be used: # as a stand-alone test for environmental effects on test specimens # as preparation of test specimens for further physical tests or chemical tests # as environmental conditions for conducting testing of specimens == Overview == An environmental test chamber artificially replicates the conditions under which machinery, materials, devices or components might be exposed. It is also used to accelerate the effects of exposure to the environment, sometimes at conditions not actually expected. These conditions may include: * extreme temperatures * sudden and extreme temperature variations - thermal shock * altitude * moisture or relative humidity * electrodynamic vibrations * electromagnetic radiation * Cyclic corrosion testing * salt spray * rain * weathering * exposure to sun, causing UV degradation * vacuum Manufactured samples, specimens, or components are placed inside the chamber and subjected to one or more of these environmental parameters to determine reliability or measure after-effects such as corrosion. In the case of machinery such as internal combustion engines, byproducts such as emissions are monitored. An environmental chamber can be a small room used both to condition test specimens and to conduct the test. It can be a smaller unit that's used for conditioning test items. Also, some chambers are small enough to be placed onto a universal testing machine or other test apparatus. Many chambers are set at a certain set of conditions. Others can be programmed to cycle through specified sequences of conditions. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「environmental chamber」の詳細全文を読む スポンサード リンク
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