Electrostatic capacitor-type inclination sensor
AssigneeHonda Giken Kogyo Kabushiki Kaisha
InventorsTomohiko Yashiro, Morio Sato
Life of this patent
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Abstract
To provide an electrostatic capacitor-type sensor that does not require regulation such as zero-point adjustment and temperature compensation, etc. A pair of semi-circular differential electrodes are positioned next to each other in the vertical direction with a common electrode arranged so as to face the differential electrodes, with a fixed gap therebetween. The pair of differential electrodes and the common electrode are housed within an airtight container, and a dielectric fluid is sealed within the airtight container. The differential electrode on an upper side and the common electrode form an upper variable capacitor, and the differential electrode on the lower side and the common electrode form a lower variable capacitor.
Claims8
An electrostatic capacitor-type inclination sensor for detecting changes in the fluid surface level of a dielectric fluid introduced into an air-tight container as changes in electrostatic capacitance corresponding to an angle of inclination, comprising:
- a pair of differential electrodes;
- a common electrode arranged facing each of said pair of differential electrodes within the air-tight container;
- and
- wherein the pair of differential electrodes are arranged next to each other in a vertical direction with respect to the fluid surface level when the fluid surface level is horizontal.
An engine control module for a vehicle, comprising:
- a substrate;
- a control unit mounted on said substrate;
- and
- an electrostatic capacitor-type inclination sensor mounted on said substrate, said electrostatic capacitor-type sensor for detecting changes in the fluid surface level of a dielectric fluid introduced into an air-tight container as changes in electrostatic capacitance corresponding to an angle of inclination, said electrostatic capacitor-type inclination sensor including:
- a pair of differential electrodes;
- a common electrode arranged facing each of said pair of differential electrodes within the air-tight container;
- and
- wherein the pair of differential electrodes are arranged next to each other in a vertical direction with respect to the fluid surface level when the fluid surface level is horizontal.
Dependencies are inferred from the claim text.