Gas leak detection apparatus and methods

摘要

There is disclosed a gas leak detector employing pressure transducers. In one embodiment the pressure in a vessel is monitored by means of a pressure transducer. The output of the pressure transducer is coupled to an operational amplifier whereby the amplifier has a gain which is proportional to 1/T absolute. In this manner, since the gain is inversely proportional to temperature, the amplifier will produce an output which is independent of temperature but which is capable of providing a pressure indication when there is a gas leak in the container.