Displacement sensor fault handling method, device and system, processor
A fault handling method and displacement sensor technology, applied in the direction of magnetic attraction or thrust holding device, electromechanical device, measuring device, etc., can solve the problems of inoperability and damage of the magnetic levitation motor system, and achieve the goal of solving faults and ensuring normal operation Effect
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Embodiment 1
[0029] According to an embodiment of the present invention, an embodiment of a fault handling system for a displacement sensor is provided. The above-mentioned fault handling system for a displacement sensor includes: a probe ring, a plurality of analog selection switches, and a magnetic suspension bearing controller, wherein:
[0030] The probe ring is arranged inside the displacement sensor, and a plurality of detection probes and spare probes are integrated in the above-mentioned probe ring, wherein, the above-mentioned detection probe is used to detect the displacement value of the rotating shaft of the magnetic levitation motor to obtain a detection signal, and the above-mentioned spare probe is used to replace the above-mentioned multiple probes. Any one faulty probe in the detection probes; a plurality of analog selection switches, connected with the probe ring, for receiving a plurality of detection signals from the detection probes and a given signal of the backup probe...
Embodiment approach
[0044] As an optional example, the following describes specific implementations when the detection probe is in a normal state and the detection probe is in a faulty state. In order to understand the schematic implementation in the faulty state, the following is a schematic representation in the normal state. Implementation: When the detection probe PX1 and the detection probe PX2 are normal, the magnetic suspension bearing controller controls the analog selection switch to be on, so that the detection signal S1 output by the detection probe PX1 is SX1, and the detection signal output by the detection probe PX2 The signal S2 is SX2; when the rotating shaft of the magnetic levitation motor is in the center position and offsets △x in the X direction, then the signal SX1=S0+△s, SX2=S0-△s, after being processed by the differential detection circuit, the differential detection signal Sm=2△s is obtained, Then, the amplifying and filtering circuit is used to amplify and filter to obtai...
Embodiment 2
[0052] According to an embodiment of the present invention, an embodiment of a fault processing method for a displacement sensor is provided. It should be noted that the steps shown in the flowchart of the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions, and , although a logical order is shown in the flowcharts, in some cases steps shown or described may be performed in an order different from that herein.
[0053] Image 6 is a flow chart of a method for troubleshooting a displacement sensor according to an embodiment of the present invention, such as Image 6 As shown, the method includes the following steps:
[0054] Step S102, receiving a plurality of detection signals from a plurality of detection probes and a given signal of a backup probe, wherein the detection probe is used to detect the displacement value of the rotating shaft of the magnetic levitation motor to obtain the detection signal, and the backup p...
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