Ultrasonic sensor TS 601

[vivek chaudhari]

Hi, 

I am vivek chaudhari , doing ME in Electronics. I want to subject basic research paper so that why i choosed the topic “ultrasonic sensor”. I have doubt regarding this. Why trigger pin is required to this sensor module? And how transmitter generate eight 40khz pulses? Please help me..

[Hari Prasaath K]

*The purpose of the TRIGGER pin is to cause the module to send out a Ping i.e request. It makes the sensor works. As soon as the      TRIGGER pin goes HIGH then LOW the internal clocks start ticking. 

*8 cycles of 40KHz audio are sent out of the transmitter and it starts counting how long it takes for the echo to arrive.

*In 4 pin ultrasonic sensor seperate pins are used for TRIGGER to transmit and ECHO to recieve

*In 3 pin ultrasonic sensor uses pin SIG which is used for both TRIGGER and ECHO.

*For complete details on Generation of 40khz you can look up for design of ultrasonic senor.

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