Angle detection device
A technology of angle detection and equipment, applied in the field of detection, can solve the problems of many leads, complex and large circuit structure, and low reliability
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no. 1 example
[0047] In this embodiment, the angle detection device includes a resolver and a signal processing device. In this embodiment, the excitation signal output by the excitation circuit in the signal processing device is a sine wave signal (in the present invention, it may also be a rectangular wave signal).
[0048] In the resolver, P=1, Q=6, so the number of detected teeth of the stator of the resolver is 4, and the number of salient poles of the rotor is 6. figure 2 It is a schematic cross-sectional view of the stator and rotor of the resolver. The stator includes a stator yoke and stator detection teeth, and the stator detection teeth are arranged on the stator yoke. The rotor includes a rotor core. Both the stator core and the rotor core are formed by stamping silicon steel sheets.
[0049] In this embodiment, six rotor salient poles are evenly distributed on the surface circumference of the rotor core, and four stator detection teeth are distributed along the circumferenc...
no. 2 example
[0092] In this embodiment, the angle detection device includes a rotary transformer and a signal processing device connected thereto, wherein the rotary transformer is the same as that in the first embodiment. In this embodiment, the excitation signal output by the excitation circuit in the signal processing device is a sine wave signal (in the present invention, it may also be a rectangular wave signal).
[0093] Figure 6 Shown is a schematic structural diagram of the signal processing device in this embodiment. In this embodiment, the signal processing device includes an excitation circuit, a band-pass filter, a signal acquisition circuit, a time control circuit and an angle calculation circuit.
[0094] The excitation signal output by the excitation circuit is connected to the excitation terminals A and B of the resolver, and the feedback signal terminals C and D of the resolver are connected to the input end of the band-pass filter of the signal processing device. The o...
no. 3 example
[0098] In this embodiment, the angle detection device includes a resolver and a signal processing device connected thereto, wherein the resolver is the same as the resolver in the first embodiment and the second embodiment. In this embodiment, the excitation signal output by the excitation circuit in the signal processing device is a sine wave signal (in the present invention, it may also be a rectangular wave signal).
[0099] Figure 7 Shown is a schematic structural diagram of the signal processing device in this embodiment. In this embodiment, the signal processing device includes an excitation circuit, a band-pass filter, a signal acquisition circuit, a time control circuit, a low-pass filter and an angle calculation circuit.
[0100] The output excitation signal of the excitation circuit is connected to the excitation terminals A and B of the resolver, the feedback signal terminals C and D of the resolver are connected to the input end of the band-pass filter of the sig...
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