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Lot of three ultrasonic transducers/sensors
Lot of Three Ultrasonic Transducers/Sensors
Lot of Three Ultrasonic Transducer/Sensor that have specifications similar to Kobitone 400pt16
This item is an Ultrasonic receiver assemblies from an X/Y location/digitizing system.
There are three receiver units included.
Each unit contains an Ultrasonic two pin transducer with specifications very similar to a kobitone 400PT16 (only variance we can find is the echo sensitivity is -65db where the kobitone is -45db)
A data sheet for the 400PT16 can be found here in PDF format on Mousers web page.
Kobitone units sell for approximately $6 each in single quantity's.
Our price is a low $5.25 for three units.
Sensor is a round can .65in wide and .5in long
center frequency 40khz +-1.0khz
nominal impedance at fr 1000 ohm max.
sound pressure level 117dB @0dB re 0.0002ubar
Sensitivity -65dB @0 dB = 1volt/ubar
Operation Temperature -40 to +70' C
Storage Temperature -40 to +80'C
The boards are currently wired as a receiver using an lmv822m op-amp to condition the signal. (The Transducer can be used as transmitter in a different configuration)
The board also has two IR receivers (two pin devices inside of metal shields. Very easy to de-solder). They are not used in the ultrasonic circuit so they can be removed without disrupting that section.
These units could be used as a Range Finder/Proximity Sensor fairly easily by using a MAX232 chip to drive one of the transducers and using the second unit as the receiver.
Information on how to do this can be found on this web page.
(3) Black Receiver units (each having 1 transducer and two IR receivers)
