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Ultrasonic (Ultrasound) Circuits
Last Updated on: Tuesday, April 01, 2014 04:30 AM


Circuits Designed by Dave Johnson, P.E. :
  • 40KHz Ultrasound Receiver
    A X100 transistor amplifier is followed by a zero cross detector circuit, using a voltage comparator.  The output is a TTL logic signal, corresponding to the received 40KHz signal.  (added 7/06)

 


Links to electronic circuits, electronic schematics, designs for engineers, hobbyists, students & inventors:
40kHz Ultrasound Receiver -  A X100 transistor amplifier is followed by a zero cross detector circuit, using a voltage comparator.  The output is a TTL logic signal, corresponding to the received 40KHz signal.  (added 7/06) …. [Designed by David A. Johnson]
AN597: Implementing Ultrasonic Ranging -  Microchip Application Note Published 26-Aug-97....[App Note]

Circuit for a Critter Ridder -  Ultrasonic Sound Generator (Circuit design added 10/06)
Good Old Parking Sonar -  This was one of my first designs: it is an ultrasonic parking sonar.  Based on an ultrasonic amplifier from an article seen on a 1982 magazine, it was once installed on the rear bumper of my....(added 06/05)
Implementing Ultrasonic Ranging -  Microchip Application Note Published 26-Aug-97  (app note added 2/06)
IR Detector/Emitter -  (electronic circuit added 4/05)
Medium Power 40kHz Ultrasound Transducer Driver -  This crystal controlled circuit drives a 40KHz piezoelectric transducer with a 30v peak to peak signal.  (added 7/06) …. [Designed by David A. Johnson]
PIC16F873 Ultrasonic Range Meter -  (circuit / schematic design added 6/06)
Popular Electronics Ultrasound Detector -  The bat ultrasounds are picked up by the microphone SPKR1 and go through two stages of amplification at Q1 and Q2. Separately, a tunable (R12) single frequency is produced by the LM567 oscillator U1. The LM567 is a tone decoder but here its input….
Receiver Circuit-Ultrasonic Switch -  The circuit described generates (transmits) ultrasonic sound of frequency between 40 and 50 kHz. As with any other remote control system this cirucit comprises of a mini transmitter and a receiver circuit. Transmitter generates ultrasonic sound and the receiver senses ultrasonic sound from the transmitter and switches on a relay
Ultrasonic Dog Whistle -  A novel supply voltage monitor which uses a LED to show the status of a power supply. [by Miroslav Adzic - Serbia & Montenegro]
Ultrasonic generator -  Schematic only, no circuit description
Ultrasonic motion detector -  Schematic only, no circuit description
Ultrasonic Parking Sonar -  (electronic circuit added 09/05)
Ultrasonic ParKontroller -  Are you afraid that your brand new Hummer is going to get scratched while parking it in a tight space?  Do you have trouble backing your large Mercedez S-class into your small garage?  Fear no more!  Our ultrasonic ParKontroller can sense how far you are away from the wall....
Ultrasonic Pest Repellent -  It is well know that pests like rats, mice etc are repelled by ultrasonic frequency in the range of 30 kHz to 50 kHz. Human beings can’t hear these high-frequency sounds. Unfortunately, all pests do not react at the same ultrasonic frequency. While some pests get repelled at 35 kHz, some others get repelled at 38 to 40 kHz. Thus to increase the effectiveness, ….  (added 10/05)
Ultrasonic Pest Repeller -  These emit noise to confuse or agitate insects or animals.  This is one of the better and more popular brands. It emits bursts of pulses at different frequencies. I did not find any spider webs inside this unit… [Reverse engineered schematic by Stepan Novotill]
Ultrasonic radar -  This is a very interesting project with many practical applications in security and alarm systems for homes, shops and cars. It consists of a set of ultrasonic receiver and transmitter which operate at the same frequency. When something moves in the area covered by....(electronic design added 09/06)
Ultrasonic Range & Imager -  This is the electronic schematic of the homebuilt SONAR. Only one piezoelectric tranducer is used for both tramsmit & receive.  This transducer is switched from TX to RX via the four 4016 switches. A high gain amplifier stage & rectifier translates the received echoes into voltage pulses. The timing is controlled by the PIC12C508 8-pin microcontroller....(circuit added 06/07/08)
Ultrasonic Range Finder Circuit -  (electronic diagram added 6/03)
Ultrasonic Range Finder uses Few Components -  06/24/99 EDN-Design Ideas....An ultrasonic, or sonar, range finder is a common sensor in robotic systems and industrial environments. Even home and automotive uses are possible. A novel sensor design consists of a WC, a few peripheral components, and a pair of ultrasonic transducers (Figure 1). The range-finder.... [Design Idea by Daniel R Herrington, National Semiconductor, Arlington, TX]
Ultrasonic Range Meter -  This circuit is measuring the range to an object by using ultrasonic transmitter and ultrasonic receiver. The distance is calculated by PIC microprocessor and is displayed on the three digit 7-segment LED display. …....
Ultrasonic receiver -  Schematic only, no circuit description
Ultrasonic Remote Control & Alarm -  (electronic schematic / circuit added 4/02)
Ultrasonic Sound Detector -  Its Useful to hear Ultrasonic Sounds....(Circuit design added 12/08)
Ultrasonic Switch (Andrew Wilson) -  The circuit described generates (transmits) ultrasonic sound of frequency between 40 and 50 kHz. As with any other remote control system this cirucit comprises of a mini transmitter and a receiver circuit. Transmitter generates ultrasonic sound and the receiver senses ultrasonic sound from the transmitter and switches on a relay....(electronic circuit added 4/05)
Ultrasonic Transducer Oscillator Circuit -  ASCII format (added 4/02)
Ultrasound Detector -  (electronic circuit added 7/03)

Ultrasonic (Ultrasound) Circuits
 


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