Piezoelectric gages

G04 Y.M. Gupta, Theoretical and Experimental Studies to Develop a Piezoelectric Shear Stress Interface Gage, SRI International Report, 1984. [Pg.209]

If the acceleration is variable, as in sinusoidal movement, piezoelectric systems are ideal. In case of a constant acceleration, and hence a force that is also constant, strain gages may be employed. For petroleum applications in boreholes, however, it is better to use servo-controlled accelerometers. Reverse pendular accelerometers and single-axis accelerometers are available. [Pg.906]

Piezoelectric Gages. See under Closed Bomb (or Vessel) Techniques in Vol 3, C339-L to C345... [Pg.776]

Maximum (or Peak) Chamber Pressure. Max value of pressure induced in the chamber as detd with the help of a Cu crusher gage or with a piezoelectric gage. Comparison has shown that Cu pressures should be multiplied by 1.2 to give true peak pressures... [Pg.848]

C) Dunkle s Syllabus (1960-1961), p 13a (Stein found the rifle-bullet sensitivity of expls to increase with increasing thickness of confinement. For equivalent thickness, the expls were more bullet-sensitive in steel than in A1 bombs. As a quantitative test of deton of the expl, measurements by means of piezoelectric shock-velocity gages showed promise. When there was no firm indication... [Pg.153]

Hayes (1938) Measurement of Grains (pp 28-29) Compression Test (29) Stability by Kl-Starch Paper Test, 134.5°C Heat Test, 120°C Heat Test, 65.5°C Surveillance Test and Observation Test (29-30) Ballistic Test (30-31) Heat of Explosion at Constant Pressure (51-2) Volume of Gas (52-3) Heat of Explosion at Constant Volume (54-5) Potential (55) Temperature of Explosion (55-7) Pressure of Explosion (57-61) Heat of Explosion of Propellants (62-4) Ignition of Propellants (68-70) Mode and Rate of Burning (70-71) Velocity Measurements by Le Boulange, Aberdeen, and Solenoid Chronographs (84-92) Pressure Measurements by Crusher and Piezoelectric Gages (92-6)... [Pg.311]

The underwater measurements were made using the following technique expl chges were detonated at a depth of ca 25 ft in water ca 45 ft deep. Piezoelectric pressure gages were located at the 25 ft depth at distance of 25 and 50 ft from the chge (Fig. Ex 17). The location of the chges and the gages were chosen in the manner not to have reflections from the... [Pg.301]

The most commonly used pressure transducers are piezoelectric gages, commonly quartz or tourmaline. The output of these gages (usually as voltage-time plots) is recorded oscillographically. To convert the vertical deflections on the oscillo-... [Pg.64]

To determine the burning characteristics of a proplnt, the grains are placed in the bomb and ignited. The pressure and rate of change of pressure build up are characterized by the amt of charge produced by the piezoelectric pressure gage. The charges built up by the... [Pg.117]

Note Accdg to Ref 36, p 68, spring gages have some advantage over piezoelectric and strain gages because they require little specialized knowledge to handle them. They have some value in closed vessel work as a laboratory substandard... [Pg.122]

Two types of piezoelectric gages are in common use, one utilizes a crystal of quartz, the other of tourmaline. [Pg.122]

The current US piezoelectric tourmaline gage, known as Piezoelectric (Tourmaline) Pressure Transducer (External Type) is represented in Fig below /- CONNECTOR... [Pg.123]

Piezoelectric gages are very suitable for measuring rapid pressure changes because of the absence of inertia effect... [Pg.124]

Piezoelectric gages may be used not only to measure the pressure developed in closed bomb or in weapons, but also to measure the blast pressure and pressure developed in recoil mechanisms (Ref 5)... [Pg.124]

E.Gordon, "Pressure Measurements in Gaseous Detonation by Means of Piezoelectric Gages ,... [Pg.127]

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