Technology Supplies Ltd Ultrasonic System

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	Ultrasonic System Ref: 290-131 This apparatus consists of a self-contained transmitter and receiver operating in the 40 kHz region. The transmitted wave is modulated at a variable frequency of about 2kHz and this is detected by the receiver which amplifies the signal and drives a miniature integral loudspeaker. Both transmitter and receiver are contained in separate plastic enclosures measuring 60 x 100 x 25mm which contain all the electronics and the 9V batteries. The receiver has front panel 4mm sockets so that the output can be monitored on an oscilloscope for more quantitative measurements. A special feature is the second output transducer on the transmitter which can be switched in when required. This then becomes a twin coherent source and by moving the receiver interference patterns can be dramatically demonstrated. The system is ideal for demonstrating sound waves above the hearing threshold and reflection properties associated with sonar etc. Complete with batteries full instructions and suggestions for use. Click here for a bigger image £103.46(Excluding: VAT at 17.5%)

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