help in ultrasonic circuit

[nsreen]

i want to use ultrasonic in my project i know it’s therotical theory but i don’t know it’s circuit ..can any one help me plz and thanks in advance : 

[umar farrok]

its just a comparator circuit using opamp one pin is assigned for refernce input another input signal is considred to be the input from signal if signals cut because of retransmit of signal from ultrsonic the circuit logic changes to ouput 0, whether output  logic 0 or logic 1 condition is assigned by the user depend on the terminal which we passed our refernce input(constant input).

[umar farrok]

ultrasonic circuit transmit a signal and getting back the signal as echo inside a comparator is there to calculate the transmitted signal with echo signal with respect to distance if the trasmitted signal is sending signal with some duration of pulse and check whether the echo signal is repaeated or not if echo repaeated transmiiter signal stops the sending signal and control goes to comparator to check the obstacle distance with inpur an  reference values

[AJISH ALFRED]

Hi Nsreen,

Please share more details about your query with the ultrasonic project

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