| |
|
Company Profile
PCB Piezotronics Inc - Load Cells, Accelerometers, Force Sensors, Pressure Transducers, Transmittter
Private Ownership
3425 Walden Ave
Depew, NY 14043 USA
Phone: 716.684.0001
Fax: 716.684.0987
Tollfree: 800.828.8840
www.pcb.com
|
| Accelerometer, Capacitive Polymer |
Piezoelectric accelerometers rely on the piezoelectric effect of quartz or
ceramic crystals to generate an electrical output that is proportional to applied acceleration.
The piezoelectric effect produces an opposed accumulation of charged particles on the
crystal. This charge is proportional to applied force or stress. A force applied to a quartz
crystal lattice structure alters alignment of positive and negative ions, which results in an
accumulation of these charged ions on opposed surfaces. These charged ions accumulate
on an electrode that is ultimately conditioned by transistor microelectronics. The capacitive
accelerometer measures low-level acceleration at low frequency and measures uniform
acceleration, all on a minimum of only 10 VDC. The sensors damped response climinates
any high frequency energy to provide clean low amplitude, low frequency signals.
Broad band resolution 0.5 to 100 Hz; Accelerometer sensitivity +/- 5%.
|
|
