Closed-type temperature control solid medium electrical resistivity measurement device
A technology of a solid medium and a measuring device, applied in the field of electrical measurement, can solve the problems of lack of consideration, inaccurate measurement results, loss of reference significance for the electrical properties of insulating materials, etc., and achieve the effect of high vacuum degree
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[0017] The present invention proposes a closed temperature-controlled solid medium resistivity measuring device. The present invention will be further described below in conjunction with the accompanying drawings.
[0018] figure 1 It is a schematic diagram of the measurement system; shown in the figure is a test device for measuring the resistivity of solid dielectrics in a vacuum state and at different temperatures; the closed temperature-controlled solid medium resistivity measurement device consists of a test chamber connected to a DC power supply, a feedback control Thermometer, diaphragm vacuum pump, magnetic pump and picoammeter.
[0019] Such as figure 2 The schematic diagram of the internal structure of the test chamber is shown. The test chamber is composed of the inner chamber 1 and the outer chamber 2 to form a coaxial hollow cylinder, which is made of 304 stainless steel as a whole. It is sealed and fixed; the oil inlet pipe 10 and the oil outlet pipe 11 are ar...
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