A piezo-electric method for the instantaneous measurement of high pressures
Book details
- Title
- A piezo-electric method for the instantaneous measurement of high pressures
- Publication year listed
- 1922
- Format
- Public domain eBook
- Reading access
- Free online reader; no registration required
- Source record
- View on Archive.org
About this book
A piezo-electric method for the instantaneous measurement of high pressures
Author: Karcher, J.C
Year: 1922
The pressure gage- a number of quartz plates suitably cut are arranged condenser fashion in a stack and introduced in an electric circuit. The quartz plates are subjected to the gas pressure to be measured by means of a piston. The combination of these constitutes a gage which is screwed into the wall of the gas chamber and the leads are brought out through holes drilled through the wall. The rec ording galvanometer- a ballistic galvanometer whose period is long compared to the duration of the pressure phenomenon is connected to the electrodes of the quartz plates. The galvanometer deflections are photographically recorded on a rapidly moving film. The pressure-time curve is the differential of the recorded deflection-time curve.
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