A correction method of torque value in thermal vacuum environment test
A technology of environmental testing and thermal vacuum, applied in the field of torque value correction, can solve problems such as effective correction of torque value, and achieve the effect of effectively correcting torque value
Active Publication Date: 2012-02-22
日照经济技术开发区城市发展投资集团有限公司
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Problems solved by technology
[0006] In order to overcome the deficiency that the existing thermal vacuum environment parameter testing system cannot effectively correct the torque value, the present invention provides a thermal vacuum environment test torque value correction method that can effectively correct the torque value
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[0031] The present invention will be further described below in conjunction with the accompanying drawings.
[0032] refer to figure 1 with figure 2 , a thermal vacuum environment test torque value correction method, two identical magnetic fluid seal shafts are coaxially installed on both sides of the vacuum tank, a torque sensor is installed on each of the two magnetic fluid seal shafts, and a magnetic fluid seal shaft The first left torque sensor is installed on the left side of the shaft, and the first right torque sensor is installed on the right side of a magnetic fluid seal shaft, the first left torque sensor is located outside the tank, and the first right torque sensor is located inside the tank The second left torque sensor is installed on the left side of another ferrofluid seal shaft, and the second right torque sensor is installed on the right side of another ferrofluid seal shaft, and the second left torque sensor is located in the tank. The second right torque...
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A method for correcting a torque value in thermal vacuum environment testing. Two identical magnetic fluid sealing shafts are coaxially installed on both sides of a vacuum tank, and each of the two magnetic fluid sealing shafts is equipped with a torque sensor. Firstly, the friction torque of each magnetic fluid seal shaft is tested at normal temperature and pressure, and then the two magnetic fluid seal shafts are directly connected to test the total friction torque of the two magnetic fluid seal shafts as a whole in a thermal vacuum environment. The above two test results calculate the friction torque variation of the two ferrofluid seal shafts under thermal vacuum environment and normal temperature and pressure. From this, the friction torque value of each ferrofluid seal shaft in the thermal vacuum environment can be obtained. The invention provides a method for correcting the torque value of a thermal vacuum environment test capable of effectively correcting the torque value.
Description
technical field [0001] The invention relates to the field of thermal vacuum environment parameter testing, in particular to a torque value correction method. Background technique [0002] Thermal vacuum test refers to a test to verify the function and performance of a mechanism or device in a space vacuum, cool black and solar radiation environment, that is, under specified vacuum and thermal cycle conditions. Usually, the mechanism or device to be tested is placed in a vacuum tank, and the required environment is achieved through special thermal vacuum equipment. In the thermal vacuum test, the torque test of the mechanism or device is often a very important index. [0003] Since the measured mechanism or device is in a thermal vacuum environment, ordinary sensors cannot be used normally in a thermal vacuum environment, so it is very difficult to measure easily at normal temperature and pressure. Both in-tank and out-of-tank solutions are included. The scheme of in-tank ...
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IPC IPC(8): G01L5/00
Inventor 孙建辉单晓杭潘柏松梁利华
Owner 日照经济技术开发区城市发展投资集团有限公司