Pneumatic-electric measuring arrangement

摘要

Such a measuring arrangement has a differential-pressure measuring device with a top and bottom pressure chamber separated by a diaphragm. The diaphragm is clamped between a top and bottom housing part and is connected to a top and bottom supporting plate of aluminium, a nozzle needle being arranged on the top supporting plate. The nozzle needle is guided in a sliding piece free of play as well as with radial pretension. Pressure changes are transmitted via the nozzle needle to a measurement transducer and from the latter to a converter which converts the values measured by the measurement transducer into electrical signals.