Signal interference issues with METRIX vibration sensors

2016-04-28View Original

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The model of the preamplifier is MX-2034-01-01-09-00-01-023-00; it uses an 8mm eddy current probe to measure the axial vibration of the shaft on the centrifugal compressor test bench. The Siemens S7-300 is used to acquire the 4-20mA signal generated by the preamplifier, and after conversion, this signal matches the values measured by the LMS system. However, in field applications, with the same wiring, the signal obtained is affected by external interference, resulting in a significant difference between the converted signal and the values measured by the LMS system. Shielded cables are used for wiring on-site, and filters are employed for the power supply, yet there is still a lot of interference. I seek guidance from experts; I thank them in advance!

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Signal interference issues with METRIX vibration sensors

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