Absorption of ultrasonic

Equipment :
• Ultra sonic receiver with holder.
• Ultra sonic transmitter with holder.
• Function generator 40KHz.
• AC amplifier
• Digital multi meter.
• Optical bench.
• Connection Cables


• Sound needs a material medium with which it can enter into reciprocal action for its propagation, whereby a loss of energy occurs.
• The amplitude and so also the intensity decreases along the propagationpath.
• This can be detected by measuring the signal of a receiver.