- Acuity Research develops and markets laser sensors for displacement and absolute position measurement. Precision sensors to 1 micron accuracy, and long range devices to 54 feet.www.acuityresearch.com
- APS manufactures fluxgate and DC SQUID magnetometers, orientation sensors, steerings tools, milliammeters, and superconducting rock magnetometers and accessories.www.appliedphysics.com