Proximity switch speed measuring instrument
A technology of proximity switches and tachometers, applied in instruments, measuring devices, linear/angular velocity measurement, etc., can solve problems that affect the accuracy and reliability of measurement data, reduce equipment control accuracy, and affect the normal operation of equipment, and improve production. Product quality, avoid the effect of relatively high external environment requirements and low power consumption
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[0026] The present invention will be further described in detail below in conjunction with specific embodiments, which are to explain rather than limit the present invention.
[0027] see Figure 1 to Figure 5 , a proximity switch tachometer, including a proximity ferrule 2 sleeved on the output shaft of the motor under test, a number of evenly distributed gaps are arranged on the proximity ferrule 2; a proximity switch 6 is provided on the side of the motor; The distance between the outermost ring of the ferrule 2 and the proximity switch 6 is the sensing distance. The proximity switch 6 can sense the outermost ring of the proximity ferrule 2 but cannot sense the gap. Pulse signal.
[0028] Specifically, the notch close to the ferrule 2 is formed by a concave portion of the outermost ring, or the outermost ring close to the ferrule 2 is a boss around the notch.
[0029] Further, the proximity ferrule 2 is mounted on the output flange 4 of the motor under test through counte...
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