Handheld shaker checks accelerometers
and vibration systems.
PCB Piezotronics has introduced a new portable handheld shaker
designed for the simple testing of accelerometers and vibration
monitoring systems to ensure that they are operating correctly.
The shaker is a small, self-contained handheld device which provides a known,
controlled RMS or peak vibrating force which is applied to the accelerometer to
verify its performance.
The shaker is mechanically attached to the accelerometer and provides a 1g
acceleration for multiple calibration cycles at a frequency of 159.2 Hz. with an
automatic shut-off after a 1.5 minute cycle. For continuous testing, the shut-off
control can be overridden.
Accelerometers weighing up to 210 grams can be driven and a mechanical
stop on the internal suspension system provides overload protection.
Operating with four AA batteries or an optional AC adaptor, the shaker has a
battery life of up to 40 hours and comes with an assortment of accessories
including a carrying case, several mounting studs, a battery pack and a
June 2000 - Ref: 9315