We have the expertise to design and develop various products, including:
MECHANICAL FILTERS FOR SENSORS
Dominca has a patented mechanical filter for protecting high-shock accelerometers (U.S. Patent 7,706,213). The filter protects accelerometers by blocking frequencies that would excite the accelerometer's resonance and thereby corrupt data or even destroy it. The filter furthermore transmits—without attenuation—the frequencies which the accelerometer was designed to record. End-users in U.S. Air Force and Navy laboratories funded development of the filter.
Examples of high-shock accelerometers which the filter protects:
The figure shows output of protected (using Dominca's external filter) and unprotected Endevco 7270A accelerometers. The frequency plot clearly illustrates the filter's attenuation of resonance.
- Meggitt (Endevco) 71, 72, 727, 2262A, 7264 series, 7270A, 7280A, 7280AM4
- PCB Piezotronics 3501A series, 3991A series