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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 Volvo Station Wagon. It served very well
for many years. Connecting it to the reverse gear lights, it switches on automatically
and shows you the distance to the nearest obstacle (according to his beam) on a led
scale. When the last led lights, a buzzer is also activated telling you to stop
immediately....(added 06/05) |
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Popular Electronics Ultrasound Detector - (electronic circuit added 4/05) |
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Ultrasonic Alarm - This alarm device transmits the ultrasonic and it confirms a
reflected wave from the obstacle. If there is object within the set distance, it
doesn't give the alarm. When there is no object within the set distance, it gives the
alarm. The distance which can be set is from about 40 cm to 5-6 m. For example, when
making a setting distance 5 m, it gives the alarm when the reflected wave from 40 cm
to 5 m passes away. ….(added 05/08) |
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Ultrasonic dog whistle - (electronic design added 10/06) |
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Ultrasonic Parking Assistant - The basic theory behind the Parking Assistant is
the Sound Navigation and Ranging (SONAR) technique that is used for finding the
distance and direction of a remote object underwater by transmitting sound waves and
detecting reflections from it. First, a series of short ultrasonic pulses are
transmitted using a transducer that changes voltage into sound waves. The transmitted
pulse is reflected off an object, and the reflected wave is then received by another
transducer that converts sound waves into voltage. The transmitted signal is also
known as the ‘ping’ and the received signal is known as the ‘pong’. By counting the
elapsed time between the ping and the pong, the distance between the device and an
object can be easily calculated by multiplying the elapsed time with the speed of
sound. ….(circuit design added 11/08) |
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Ultrasonic Parking Sonar - (schematic / circuit design added 08/05) |
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Ultrasonic ParK Controller - 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....(added 08/08/08) |
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Ultrasonic Pest Repeller - (electronic Schematic added 03/05) |
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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 the circuit the circuit’s... (electronic
design added 6/07) |
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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) |
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Ultrasonic Range Finder Circuit - (electronic diagram added 6/03) |
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Ultrasonic Range Finder uses Few Components - 06/24/99 EDN-Design Ideas (added
1/06) 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.... |
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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.
….(electronic design added 10/06) |
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Ultrasonic Remote Control and Alarm - (circuit added 7/02) |
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Ultrasonic Sound Detector - Its Useful to hear Ultrasonic Sounds....(circuit
design added 12/08) |
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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) |
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Ultrasonic Transducer Oscillator Circuit - ASCII format (added 7/02) |
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Ultrasound Detector - (electronic circuit added 7/03) |
