Technology Research Consultant's MEMS design completely eliminates all of the moving electro-mechanical
piece-parts used in the existing design on the right. This enabling technology provides a rate
gyroscope with greater accuracy, better reliability and lower cost.
The existing circuit card assembly consists of a step down transformer and a bridge circuit
to convert the 26VAC, 400Hz input into ± 11VDC. Additional circuitry is used to energize
the Stator Motor Assembly and to balance the Torquer Pickoff Coil ± 5VDC Output by controlling
the Op Amp gain using potentiometers.
The existing design incorporates a plastic packaged Op Amp manufactured off-shore.
TRC’s MEMS electrical design and PWB layout is similar to the existing design. The MEMS chip
is mounted on a daughter board using pin through technology. All components on TRC’s design
meet or exceed design parameters. TRC’s FR-4 Glass Epoxy board meets the new industry fire
rating standards.
Functional circuits include the 1:2 step down transformer, a 26VAC, 400Hz to ± 5 VDC rectifier,
Op Amps to buffer the ± 5 VDC output, and a State-Of-The-Art Rate Sensor MEMS chip.
