Rotation angle detector
A rotation angle detection and rotation angle technology, applied in the direction of measuring device, using electric device, using electric/magnetic device to transmit sensing components, etc., can solve the problems of reduced degree of freedom, larger device, increased gear diameter, etc. The effect of a wide range of detection angles and a high degree of design freedom
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[0066] (Embodiment 1)
[0067] FIG. 1 is a schematic cross-sectional view schematically showing a rotation angle detection device according to Embodiment 1 of the present invention. The rotation angle detection device of the first embodiment detects the rotation angle of the steering shaft of the automobile as the detected rotating body.
[0068] In addition, the rotation angle detection device of Embodiment 1 is an example in which the signals (A) to (D) above are
[0069] (C) The input signal from the main rotation detection mechanism processed in the signal processing mechanism
[0070] (D) The cycle of the input signal signal from the auxiliary rotation detecting mechanism processed in the signal processing mechanism is set to be different from the cycle of one revolution of the main rotating body or the auxiliary rotating body.
[0071] As shown in FIG. 1, the rotation angle detection device 1 includes a ring-shaped main gear 2 as a main rotating body, which is installed and ...
Example Embodiment
[0125] (Embodiment 2)
[0126] Figure 8 It is a cross-sectional schematic diagram schematically showing a rotation angle detection device according to Embodiment 2 of the present invention. The rotation angle detection device of the second embodiment detects the rotation angle of the steering shaft of the automobile as the detected rotating body, similarly to the first embodiment.
[0127] In addition, the rotation angle detection device of Embodiment 2 is an example of the following, that is, in the above-mentioned (A) to (D) signals
[0128] (A) The output signal of the main rotation detection mechanism
[0129] (B) Output signal of auxiliary rotation detection mechanism
[0130] The period of at least one signal in is set to be different from the period of one revolution of the main rotating body or the auxiliary rotating body.
[0131] Such as Figure 8 As shown, the rotation angle detection device 101 includes: a ring-shaped main gear 102 as a main rotating body, which is i...
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