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DIGITAL TACHOMETER USING OPTICAL TRANSDUCER
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- The speed of the motor can be varied precise angular positions within the encoder wheel
- Encoder wheel consists of Infrared LED and photo transistor is called interrupter circuit
- If you apply voltage to DC motor it rotates. Each slit causes the interrupter circuit to generate a pulse by counting the pulse that is displayed in the display
- As you increase the DC voltage the speed of the motor increases.
+5V /500mA
+12V /500mA
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