An electronic inclinometer and a centrally controlled network of inclinometers are disclosed. A resistive or capacitive inclinometer sensor measures inclination in two orthogonal axes. Measuring electrodes can be provided on the exterior of a dielectric sensor cell isolated from a sensor fluid. In another...http://www.google.com.tw/patents/US6449857?utm_source=gb-gplus-share專利 US6449857 - Inclinometer and inclinometer network
