Internal combustion engine rotating position detector using a di

Details Internal combustion engine rotating position detector using a di Internal combustion engine rotating position detector using a di

1997-09-29

2000-04-04

Snow, Walter E.

Electricity: measuring and testing

Magnetic

Displacement

32420725, 32420712, G01B 714, F02D 4520

Patent

active

060465840

ABSTRACT:
A rotating position detecting device is capable of detecting a rotating position with high accuracy even if there exists variation in the air gap, and thereby capable of widening a detectable range of the air gap. A position of an irregularity on the detected rotating body is converted into a rectangular wave-form electric signal, and a rotating position of the detected rotating body is detected based on a building-up signal or a falling signal of the rectangular wave-form. The rotating position detecting device has a magneto-electric converter element for outputting an electric signal corresponding to a magnetic intensity, a magnet for generating a magnetic field, and a detected rotating body made of a magnetic material having the irregularity.

REFERENCES:
patent: 5729127 (1998-03-01), Tamura et al.
patent: 5744950 (1998-04-01), Seefeldt

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