Water vapor permeability tester adopting weight-reducing method
A water vapor transmission rate, measuring instrument technology, applied in the direction of permeability/surface area analysis, instruments, measuring devices, etc., can solve the problems such as the inability to form humidity difference, the test results are prone to errors, etc., to achieve a simple structure and reduce the impact of errors. , cost saving effect
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[0020] The present invention will be further described below in conjunction with accompanying drawing and specific embodiment:
[0021] Such as Figure 1 ~ Figure 2 As shown, the weight loss method water vapor transmission rate measuring instrument of the present invention mainly includes a processor 1, a memory 2, a display terminal 3 and at least one independent test unit 4, wherein the processor 1 is connected with the memory 2 and the display terminal respectively 3 connections. Each independent testing unit 4 mainly includes a testing cavity 41 , a cavity cover 42 , a heating device 43 , a load cell 44 , a moisture-permeable cup 45 , a temperature and humidity sensor 46 and a desiccant 47 . The heating device 43 heats the test chamber 41. The bottom of the test chamber 41 is provided with a load cell 44 connected to the processor 1. The load cell 44 is provided with a moisture-permeable cup 45. The moisture-permeable cup 45 contains water. The moisture-permeable cup The...
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