Engineering topics

Zavracky, P.

Publications and source records attributed to Zavracky, P..

2 records

NASA NTRS1993

NASA Ultra-Sensitive Miniature Accelerometer

Using micro-machined silicon technology, an ultra-sensitive miniature accelerometer can be constructed which meets the requirements for microgravity experiments in the space environment. Such an accelerometer will have a full scale sensitivity of 10 -2 g, a resolution of 10 -8 g, low cross-axis sensitivity, and low temperature sensitivity. Mass of the device is approximately five grams and its footprint is 2 cm x 2 cm.

miniature↗

NASA NTRS1993

A New Force Balanced Accelerometer Using Tunneling Tip Position Sensing

In this paper, we report the initial development of a single-axis bulk micromachined accelerometer. The device employs an electron tunneling tip as a position detector in a force feedback control system. Control electrodes are placed above and below the proof mass and act as electrostatic force plates. Using the force plates, the position of the proof mass relative to the tunneling tip can be controlled.

accelerometers sensors position detectors↗