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介绍了一种采用测频法设计的最新数显转速测试仪。该仪器主要通过光电传感电路、放大电路、振荡电路及数学显示电路对电机的转速进行自动测试并显示。
Introduced a frequency measurement method using the latest digital display speed tester. The instrument mainly through the photoelectric sensing circuit, amplifier circuit, oscillation circuit and mathematical display circuit to automatically test the motor speed and display.