Ultrasonic Leak Detector: Air Leak Detection with Ultrasound

This page explores the functionality of an Ultrasonic Leak Detector, specifically its application in detecting air leaks using ultrasonic waves. We’ll delve into the basic block diagram of the device and list several manufacturers/vendors of these detectors.

We know that many home appliances, like refrigerators and microwave ovens, are designed to be airtight. Refrigerators maintain cold air inside through tight seals, and microwave ovens prevent microwave radiation leakage using similar methods. The same principle applies to air-conditioned cars and other vehicles. Defective seals can often lead to unwanted air leaks in these vehicles.

Image: Ultrasonic Leak Detector

The Ultrasonic Leak Detector identifies air leaks in cars or other closed structures. It operates by utilizing ultrasonic waves.

How it Works: A Simplified Block Diagram

The following describes the basic operation of an Ultrasonic Leak Detector:

The system comprises a transmitter and a receiver.

• Transmitter: The transmitter is placed inside the enclosure that needs to be tested for leaks.
• Receiver: The receiver is placed outside the enclosure. The user moves the receiver around the exterior of the closed structure, searching for any signs of leakage.

The Ultrasonic Leak Detector, as shown in the image above, generates an audible sound when a leak is detected. When there is no leakage, it remains silent.

Ultrasonic Leak Detector: Manufacturers and Vendors

Here’s a list of some manufacturers and vendors of Ultrasonic Leak Detectors:

• Amprobe
• SKF
• UE Systems
• SONOTEC Ultrasonic solutions, GmbH
• EXAIR
• Grainger, Inc.