Electrostatic accelerometer

Electrostatic accelerometer comprising:

• an electrically conducting test weight;
• a cage in which said test weight is located;
• a system of electrodes for suspending said test weight located in said cage at the points where the axes of a coordinate tri-rectangular trihedral meet the cage and associated by pairs of electrodes located along given coordinate axes of said trihedral, said electrodes forming with said conducting test weight pairs of variable capacitors, each pair relating to one coordinate axis;
• a least a measurement circuit of the capacities of a pair of electrodes relating to one coordinate axis;
• at least a generator of electrostatic positioning control signals of the test weight along said coordinate axis, driven by said measurement circuit and connected to the pair of electrodes relating to said coordinate axis;
• means for calculating the gradients of the measured capacities of said pair of electrodes;
• means for squaring said positioning control signals relating to said pair of electrodes;
• and
• means for multiplying said gradient by said squared signals.