Ultrasonic displacement sensor using digital signal...

Details Ultrasonic displacement sensor using digital signal... Ultrasonic displacement sensor using digital signal...

G - Physics

05

B

G05B 19/042 (2006.01) G01S 7/527 (2006.01) G01S 15/04 (2006.01) G08C 23/02 (2006.01) G01S 15/52 (2006.01) G08B 13/181 (2006.01) H05B 37/02 (2006.01)

Patent

CA 2454012

An apparatus and method is provided for detecting motion or displacement of an object in a monitored zone. The apparatus is disposed between a load and a power source and comprises a transmitter for providing a pulsed signal within a monitored zone. The pulsed signal interacts with objects in the monitored zone and provides a return signal. A receiver receives echoes from a return signal of the pulsed record signal, and a.microcontroller circuit processes the echoes. The processing involves extracting a kernel from the return signal and multiplying the kernel by the stored return signal.

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