Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.
i had developed the circuit for both Tx and Rx. and i am getting the signal back for 1.2mts,
now i need to develope a circuit that can use only one sensor for TX and RX, nothing but a switch to swicth between TX mode and RX mode,and another thing is to improve the range of the sensor.
Hi 24+,
Yets clear me-tnx.
I would switch the RX-input "short" with a transistor/switching diode as BASxxx until sending time...
Btw: maybe it helps for you: http://www.discovercircuits.com/U/ultrasonic.htm
K.
If the transmit driver is high impedance in inactive state and the receive amplifier doesn't load the transducer, you don't need a switch. This is the usual technique e.g. for echo sounders. A voltage limiter at amplifier input may be useful, possibly a blanking circuit to speed up the amplifier recovery after end of transmission.
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.
