Low power tiltmeter electronics with compensation for bubble level fluid temperature

摘要

Low power tiltmeter electronics with compensation for bubble level fluid temperature include compensating methods both for temperature-induced conductivity changes and temperature-induced viscosity changes in the bubble level fluid of a tiltmeter. The conductivity changes are compensated for by comparing the difference between the tilt conductances with the average of the tilt conductances. The viscosity changes are compensated for with a critically damped bandpass filter and a thermistor filter.