Patent ID: 9745843
Date: 2017-08-29
CPC Classifications: E21B,G01D

Claim:
1. A method for determining position, the method comprising the steps of: assembling a position sensor being comprised of an oscillation element having a range of displacement in a set direction according to gravity; generating a position data signal with said position sensor based on an amount of displacement of said oscillation in said set direction, said position data signal corresponding to orientation of said position sensor; detecting a temperature data signal with a temperature sensor in proximity to said position sensor; communicating said position data signal and said temperature data signal to a processor module being in communication with said position sensor and said temperature sensor; generating a position value based on said position data signal, said temperature data signal, and duration of a temperature corresponding to said temperature data signal with said processor module; storing said position data signal, said temperature data signal, said duration of temperature, and said position value in a memory module in communication with said processor module; communicating said position value to a terminal device in communication with said processor module; controlling activity of said terminal device corresponding to said position value; generating a plastic bias value with said processor module based on said temperature data signal, said duration of said temperature, and said position data signal so as to account for bias and hysteresis errors; and setting said position value according to said plastic bias value, said position data signal being adjusted by said plastic bias value.