CLINOMETER

摘要

PROBLEM TO BE SOLVED: To provide a clinometer which has a simple structure and improved responsiveness. SOLUTION: The clinometer comprises: a triaxial acceleration sensor 1; a composite acceleration calculating section 2 for calculating, on the basis of an x-axial output value Ax, a y-axial output value Ay, and a z-axial output value Azfrom the triaxial acceleration sensor, a composite acceleration A determined by A=√(Ax2+Ay2+Az2); a measurability determining section 3 for determining the deviation of the composite acceleration A from 1[G] and outputting a measurement instruction when the value is within a predetermined range; and an inclination angle calculating section 4 for outputting as a measured value either an x-axial inclination angleθxdetermined byθx=tan-1(Ax/Az) or a y-axial inclination angleθydetermined byθy=tan-1(Ay/Az), or both on the basis of the x-axial output value Ax, the y-axial output value Ay, and the z-axial output value Azfrom the triaxial acceleration sensor when the measurement instruction is received from the measurability determining section. COPYRIGHT: (C)2009,JPO&INPIT