Comparison
Standard Accelerometer Endevco Model 2270
The Endevco Model 2270 Primary Comparison Calibration
Standard Accelerometer is a combination standard accelerometer
and calibration fixture used for performing comparison
calibrations of other accelerometers. The extremely high
stability and very flat frequency response of the accelerometer
is achieved through the use of sensing elements made of
Endevco P-10 crystal material. The Model 2270 has a 1/4-28
tapped hole 0.5 inches deep for attaching units under
test. Accessory bushings are provided to mount accelerometers
that use 2-56, 6-32 or 10-32 sizes. Additional adapters
with 4-40, 4-48, 8-32 and metric M3x0.5 threads are available.
Signal ground can be switched from grounded to isolated
at the user's option by means of a knurled nut on the
output signal receptacle.
Features:
• Laboratory grade primary standard accelerometer for
back-to-back comparison calibration
• Stable P-10 crystal material
• Supplied with absolute calibration at 100 Hz traceable
to NIST
• Selectable connection/isolation of signal ground and
case
The Endevco Model 2270 Primary Comparison Calibration
Standard Accelerometer is a combination standard accelerometer
and calibration fixture used for performing comparison
calibrations of other accelerometers. The extremely high
stability and very flat frequency response of the accelerometer
is achieved through the use of sensing elements made of
Endevco P-10 crystal material. The Model 2270 has a 1/4-28
tapped hole 0.5 inches deep for attaching units under
test. Accessory bushings are provided to mount accelerometers
that use 2-56, 6-32 or 10-32 sizes. Additional adapters
with 4-40, 4-48, 8-32 and metric M3x0.5 threads are available.
