MODEL 663 VIBRATION AMPLIFIER
Description
The Model 663 is a combination amplifier and integrator for accelerometer signals. One integration stage is provided, converting acceleration into velocity. The unity gain
frequency of the integrator is factor-trimmed to 60Hz. Two outputs are provided per accelerometer–a buffered copy of the acceleration, and the integrated velocity output. Prior to the integration stage, a gain of ten may be applied with a front-panel toggle switch. The Model 663 is a two-channel module, providing signal conditioning for two accelerometers, giving a total of 16 channels in a 5.25" high 19" rackmount.
Specifications
Input signal: Differential input on rear panel BNC, ±10V max. differential at G=1
Input impedance: 20M Ohm (10M Ohm to common, each input)
Gain: One or ten, ±0.5%, front panel switch selectable
Acceleration frequency response: 5Hz to 15kHz (factory adjustable)
Output-buffered: DC-coupled single-ended output, gain of one or ten
Output-integrated: AC-coupled velocity signal, gain of one or ten
Integration frequency: 60Hz (factory trimmed)
Power: 115VAC 50/60Hz
Mechanical: Module 1.8"W x 5" H x 6"D; Rack 19"W x 5.25"H (3U) x 12"D