New Automatic Leak Testing System with Helium Mass Spectrometer Leak Detector

Gas flow through the mass spectrometer viscous leak.

High-sensitivity photoacoustic leak testing.

The photoacoustic effect may be exploited for the detection and localization of gas leaks from otherwise sealed components. The technique involves filling the test component with a tracer gas, and radiating the component to produce photoacoustic sound from any leak site where tracer gas is present. This paper describes demonstration experiments utilizing 10.6-micro radiation from a carbon-dioxi...

Leak Detector Guidance for FreonTM Refrigerants

Refrigeration service personnel have used leak detection equipment for years when servicing refrigeration equipment. In the past, leak detection typically was only concerned with leak pinpointing, either with an ultrasonic device, soap bubbles, dyes, thermal conductivity, or other electronic devices. Today, refrigerant leak detectors exist not only for pinpointing leaks, but also for monitoring...

Microsystem with integrated capillary leak to mass spectrometer for high sensitivity temperature programmed desorption

Pulmonary Capillary Leak Syndrome