→What is Inclinometer? http://www.rion-tech.net/newen/jjfa1.asp?ID=62 →What is Electronic gyroscope? http://www.rion-tech.net/newen/jjfa1.asp?ID=158 →What is Accelerometer? http://www.rion-tech.net/newen/jjfa1.asp?ID=159 →What is Electronic compass? http://en.rion-tech.net/jjfa_detail/newsId=76.html →What is the difference between Plane compass and 3 d compass ? http://www.rion-tech.net/newen/jjfa1.asp?ID=160 →Giant magnetoresistance effect and Inclinometer http://www.rion-tech.net/newen/jjfa1.asp?ID=157