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Endevco® model 2220E piezoelectric accelerometer

Endevco® model 2220E piezoelectric accelerometer
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Endevco® model 2220E piezoelectric accelerometer - 1

The Endevco® model 2220E is a miniature piezoelectric accelerometer designed specifically for high temperature vibration measurement on mini-structures and small objects. The unit is hermetically sealed and ideal for use in extreme environments. Its light weight (3.1 gm) effectively eliminates mass loading. The accelerometer is a selfgenerating device that requires no external power source for operation. Model 2220E features Endevco’s Piezite® type P-8 crystal element operating in annular shear mode. This configuration exhibits excellent output sensitivity stability over time. Signal ground is connected to the outer case of the unit. When used with the supplied isolated mounting screw assembly, the accelerometer is electrically isolated from ground. A specially designed, low-noise coaxial cable is supplied for error-free operation. The transducer utilizes a centrally located thru bolt, allowing 360° cable orientation. The unit may also be mounted with an adhesive. Endevco signal conditioner models 133, 2775B, 2771C, or OASIS 2000 computercontrolled system are recommended for use with this high-impedance accelerometer. • NEW! 2220E-R available as replacement sensor • High temperature (260°C) • Miniature design • 360° cable orientation • Hermetically sealed • Small-motor testing, APU’s, hydraulic actuators -20 -15 -10 -5 0 5 10 15 20 1 10 100 1000 10000 % DEVIATION FREQUENCY IN HERTZ TYPICAL AMPLITUDE RESPONSE -10 -5 0 5 10 15 20 -100 0 100 200 300 400 500 % DEVIATION TEMPERATURE oF ( oC) TYPICAL TEMPERATURE RESPONSE TYPICAL CAPACITANCE CHARGE SENSITIVITY (-73) (38) (149) (260) UNIT IDENTIFICATION AND SERIAL NUMBER .093 (2.36) .375 (9.53) DIA M3 RECEPTACLE MATES WITH ENDEVCO 3053 CABLES STANDARD TOLERANCE INCHES (MILLIMETERS) .XX = +/- .02 (.X = +/- .5) .XXX = +/- .010 (.XX = +/- .25) DIA .12 (3.0) .23 (5.8) .34 (8.6) MOUNTING SCREW AND WASHER 2-56 UNC-2A THD (INSULATED CONFIGURATION SHOWN) .281 (7.14) .17 (4.3) .312 (7.92) .16 (4.1) WASHER (USED WITH INSULATED MOUNTING SCREW ASSEMBLY) MOUNTING SURFACE Model 2220E Piezoelectric accelerometer Features Description cmyk

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Endevco® model 2220E piezoelectric accelerometer - 2

Specifications The following performance specifications conform to ISA-RP-37.2 (1964) and are typical values, referenced at +75¢ªF (+24¢ªC), 4 mA and 100 Hz, unless otherwise noted. Calibration data, traceable to National Institute of Standards and Technology (NIST), is supplied Dynamic characteristics Units Charge sensitivity Typical pC/g 3.0 Minimum pC/g 2.0 Frequency response See typical amplitude response Resonance frequency kHz 50 Amplitude response [1] ±5% Hz 1 to 10 000 ±1 dB Hz 1 to 12 000 Temperature response See typical curve Transverse sensitivity % 5 Amplitude linearity Per...

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