Ultrasonic

PANASONIC/MATSUSHITA - EFR-OHB40K24 – 16mm Transducer, Ultrasonic Transmitter. New PANASONIC/MATSUSHITA EFR-OHB40K24 Ultrasonic Transmitters are brand new units suitable for industrial automation and motion control applications. These solid-state transmitters operate on AC current and have a through-hole mounting type for easy installation. With a reliable brand like Panasonic these ultrasonic transmitters offer consistent and accurate sensing capabilities for various industrial settings. Ceramic disc/bimorph type piezoelectric-pzt ceramic vibrator used for sensing and transmitting ultrasonic vibrations thru the air. Used in burglar alarm systems, flow rate and personnel detectors and remote control / mind control systems. Status: Discontinued Frequency: 40kHz 100dB PZT. Housing: 2 Pin Metal Can. Center Frequency: 40 KHz. Band width: 4Khz + Connection: 2 Pin Solder Enclosure: Metal Can Marked HB40 on Bottom Surface Dimensions: 0.500" (12.5mm) Diameter x 0.370" (9.4mm) High. Applications: Wide bandwidth ultrasonic receivers are perfect for Remote Control Systems, Burglar Alarms, Flow Rate Detectors, Robotics, DIY Bat Detectors, Proximity sensors, Automatic door openers, etc... Note: Matched Receiver EFR-RUB40K25 purchased separately. New Old Stock Learn More

PANASONIC/MATSUSHITA - EFR-RUB40K25 - 40kHz 16mm Ultrasonic Transducers Receiver, New The Air Ultrasonic Receivers 4 Bat Detectors EFR-RUB40K25 are electronic components designed for use in various industrial and commercial applications. Made by Panasonic, these semiconductors and actives feature a resonant frequency of 40 kHz and operate on AC current. The PCB mount design allows for easy installation, and the round shape and ultrasonic horn type ensure efficient sound emission. Ideal for detecting objects or finding their location, these receivers and detectors offer reliable and precise functionality for a range of uses. Type: High Quality Bimorph Disc 16mm, 45db Ceramic Receiver / Microphone. Dimensions: 0.63 Diameter x 0.48" High (16mm x 12mm) Center Frequency: 40 KHz. Band width: 4Khz + Connection: 2 Pin Solder Mating Transmitter EFR-OHB40K24 purchased separately. Applications: Wide bandwidth ultrasonic receivers are perfect for Remote Control Systems, Burglar Alarms, Flow Rate Detectors, Robotics, DIY Bat Detectors, Proximity sensors, Automatic door openers, etc... New Old Stock Learn More

ZENITH - 49-1267-02 – Vintage Space Commander Ultrasonic Receiver Transducer, New In the early 1960s, solid-state circuitry (i.e., transistors) began to replace vacuum tubes. Handheld, battery-powered control units could now be designed to generate the inaudible sound electronically. Ultrasonic remote control lasted through the early 1980s or a quarter century from its inception. More than 9 million ultrasonic remote control TVs were sold by the industry during the 25-year reign of this Zenith innovation. By the early 1980s, the industry moved to infrared, or IR, remote technology. How did the zenith space command remote or old clicker remote work? In 1956, Robert Adler developed Zenith Space Command, a wireless remote. It was mechanical and used ultrasound to change the channel and volume. When the user pushed a button on the remote control, it struck a bar and clicked, hence they were commonly called "clickers", and the mechanics were similar to a pluck. These ultrasonic sounds were picked up by the TV to perform basic functions like changing channels or adjusting volume. It was one of the earliest remote control systems and worked mechanically, producing distinct sounds for each command For 25 years we did not need batteries for TV remote. And we didn't even have to point them at the television. That's because they used sound and was an ingenious invention. The Zenith Space Command ultrasonic transducer in the TV is a small, specialized microphone designed to detect high-frequency sound waves. It is usually positioned on the front of the television, often behind a small perforated metal grille or small hole, allowing it to "hear" the clicks from the aluminum rod-based remote. • Appearance: It appears as a small, silver-colored, or metallic, cylindrical microphone capsule. • Function: It serves as the receiver for the ultrasonic signals (around 40 kHz) produced by the mechanical rods in the remote. • Location: Located on the front of the TV set, near the screen or behind a decorative metal mesh. • Mechanism: When the remote's spring-loaded hammer strikes the internal aluminum rod, the transducer detects the resulting vibration, activating the TV's circuitry. Genuine Vintage Zenith Pick-up Transducer. Made in USA Dimension: 0.65" Diameter New Old Stock - Rare Used with Vintage Zenith Remote Controls (i.e. Space Command Television Remotes). These ultrasonic remotes and transducers were introduced in 1956 and continued for over two decades. This was when Zenith was known as the premier American manufacturer of consumer electronics and produced during a time when Zenith heavily promoted its American-made quality. Applications: Science Projects and Restorations. Additional Information: https://www.instagram.com/reel/DNha0ZtNPz2/ https://www.youtube.com/shorts/gE7vjufSU4k https://www.facebook.com/watch/?v=1436472417590267 https://www.youtube.com/watch?v=PlgSuaIHYsY https://www.youtube.com/watch?v=aGFFIEiPgmI https://www.youtube.com/watch?v=JrhKW20DIvA https://zenith.com/heritage/remote-background/ https://www.theverge.com/23810061/zenith-space-command-remote-control-button-of-the-month Learn More

Transducer 60mm D x 133mm long. Near-Far-gate and Dist pots on rear with mating cable and connector. New.

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Logan Lundahl Instruments - DCU-A - 6-WIRE ULTRASONIC SENSORs with Adjustable Trip-point and Sensitivity.

The DCU series sensors use ultrasonic technology to provide a non-contact method of determining distance or level measurements.

Dimensions: 2" Square x 3.6" Long.

A Division of EZRA C LUNDHAL, INC 

Note: California-based Scientific Technologies Inc aquired Logan Lundahl Instruments.

New Old Stock - Made in USA

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Commercial Ultrasonic / Audio Transmitter & Receiver Probe

Transducer Receiver consist of a piezoelectric ceramic disc mounted with-in a probe.  A conical metal resonator bonded at the center of disc acting as a rigid piston. This special construction provides high sensitivity, wider bandwidth and excellent durability in wide temperature and humidity ranges and high stability in electrical and mechanical characteristics. Due to its free vibration character the open type transducers are very suitable for continual wave driving, such as Doppler motion detector.

High Quality Distance Ultrasonic Sensor Head

Marked in Red: "2-5-10cm. 3-8 Vol. 1-2 Inch & 2 - 12 Feet.

Has two DIN Male connectors, a 5-pin and a 3-pin plug attached to the special microphone with a 5 foot long flat cable with widely separated conductors.

Specific Application and Specifications Unknown - Great for Hobbyist/Experimenters/Inventors 

Typical Ultrasonic Probe Applications: Measurement, Motion, Sensing & Instrumentation, Automation & Process Control, Robotics, Security, Power Management, Leak Detection. and Inspection In Industrial, Aerospace, Medical, and Manufacturing.

Vintage - New Old Stock

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Transducer, ultrasonic. 24kHz. New. Learn More