Low pressure quartz transducer for dynamic and short term static pressure measurements from vacuum to 10 bar. High resonant
frequency, flush welded diaphragm.
The measured pressure acts through the diaphragm on
the quartz crystal measuring element which transforms
the pressure into an electrostatic charge. The stainless
steel diaphragm is welded flush and hermetically to
the stainless steel transducer body. The quartz elements
are mounted in a highly sensitive arrangement (transversal
effect) in the quartz chamber, which is welded hermetically
to the body. The screw-on cover and the hose nipple
simplify in many cases the connection to the measured
pressure.
The low pressure transducer 7261 is suited for fast
dynamic pressure measurements if used without cover.
In case both cover and nipple are mounted, the frequency
response is reduced considerably due to the Helmholtz
resonator effect. Quasistatic measurements of several
minutes duration are possible under appropriate conditions.