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Ultrasonic Circuits


An ultrasonic level or sensing system requires no contact with the target. For many processes in the medical, pharmaceutical, military and general industries this is an advantage over inline sensors that may contaminate the liquids inside a vessel or tube or that may be clogged by the product.

A common ultrasound application is an automatic door opener, where an ultrasonic sensor detects a person's approach and opens the door. Ultrasonic sensors are also used to detect intruders; the ultrasound can cover a wide area from a single point.

The flow in pipes or open channels can be measured by ultrasonic flowmeters, which measure the average velocity of flowing liquid. Ultrasonic Aplications includes motion sensors and flow measurements, non-destructive testings, ultrasonic range finders, ultrasound Identification (USID), imaging, acoustic microscopy, biomedical applications, ultrasonic cleaning, ultrasonic humidifiers, etc.


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It's well known that many animals are particularly sensitive to high-frequency sounds that humans can't hear. Many commercial pest repellers based on this principle are available, most of them oper...

Traditionally, the compatibility of ultrasonic welding to join components encapsulating electronic parts is questionable, due to concerns over the possibility of damaging the sensitive electronic c...

Here is a simple ultrasonic rangefinder project circuit designed using 8051 microcontroller. It measures the distance up to 2.5 meters at accuracy of 1 cm.

Robotronicdiagram. - One electronic sensor component that usually used as distance sensor is ultrasonic sensor SRF04. When we want to design robot that can detect distance, we can use ultrasonic se...

Explaining the difference in two Branson Ultrasonic Cleaners ( CPX1800 & CPX1800H ) and why we need to use ultrasonic cleaners for electronic circuit board repair and assembly. Posted on November 2...

Ultrasonic PCB cleaning

Ultrasonic Humidifier Circuit for Nebulizer, Atomizer & Fogger

ultrasonic sound generator (3-4 W) with tweeter (schematic)

Ultrasonic sensor. Operating principle