METHOD TO DEFINE PLANE INCLINATION ANGLE Russian patent published in 2014 - IPC G01C9/22 

FIELD: measurement equipment.

SUBSTANCE: method consists in the determination of the height of liquid column in two communicating vessels set at a fixed distance from each other on a pad installed on the surface to be measured; the above is carried out by simultaneous measurement of electrical capacity of capacitors set in the said vessels with liquid being placed between their plates. The inclination angle is calculated basing on the measured capacitance values according to certain formulas. Simultaneously with the capacity measurement, the ambient temperature is measured as well, and the error of the change of the liquid column height in the vessels is adjusted, the error is concerned with the temperature expansion of the used liquid and vessels' material, the adjustment is performed with the consideration of certain dependence on temperature.

EFFECT: improved accuracy of inclination angle measurement, small weight and dimensions of elements.

2 cl, 3 dwg