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| Qty | Unit Price (Ex VAT) |
|---|---|
| 1+ | £2.51 |
| 25+ | £2.24 |
| 100+ | £1.88 |
This ultrasonic ceramic transducer is an open type transmitter that come in a robust aluminium housing. Applications include remote control, data transmission, Doppler motion detectors, robotics, intruder alarms, energy saving devices, etc.
A matched transmitter is also available, see 35-0180.
| Type | Proximity sensor |
|---|---|
| Sound Frequency | 40kHz |
| Connection Type | Solder Pins |
| Operating Voltage | 20V |
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Sign InQ. hi prowave 400SR 160 which is the positive leg, i have measured the legs on the ones i purchased from you, legs are the same length, one leg has a small raised circular land
A. Hi Peter, thank you for your question. The raised leg would be the positive, please see the data sheet drawing.
Q. Have you any sample circuits this device can be used in. I am trying to establish what sort of drive circuit is needed
A. Thanks for your question Tim.
A good example of an ultrasonic transmitter can be found here.
Q. Which is the positive side and negative leg? is it polarized?
A. Hi Justin. Thank you for your question. The positive leg is the pin which is slightly longer.
Saw this done on a course so ordered some to make our own. Simply run it from a signal generator set to 40Hz or so ( needs a bit of playing to get right frequency) then connect a couple of receivers to a dual trace oscilloscope. You can demonstrate constructive and destructive interference, and measure the wavelength to work out the speed of sound
