Vibration measurement anti-interference method and device
An anti-interference device, vibration measurement technology, applied in the measurement device, the use of electrical devices, the measurement of ultrasonic/sonic/infrasonic waves, etc., can solve problems such as the inability to fully meet the relevant requirements
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A kind of vibration measurement anti-interference device applied in embodiment 1, such as figure 1 As shown, it includes a sensor 1, a primary isolation circuit 3 and a secondary isolation circuit 4 connected in sequence. The secondary isolation circuit 4 is respectively connected with the vibration measurement system 5 and the power consumption analysis system 7, and the secondary isolation circuit 4 is connected with the power consumption. The analysis systems 7 are connected through a drive capacitive load circuit 6 .
[0024] The output end of the primary isolation circuit 3 is connected to the input end of the secondary isolation circuit 4 .
[0025] The sensor 1, electromagnetic induction sensor, analog signal, output voltage (0-5)v, static inductance not less than 3.8mH;
For the signal lead 2, the high-strength QA-1 copper enameled wire has a DC resistance of (20±2) Ω, and the surface of each welding point is required to be smooth, without cracks and dirt;
The primar...
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