T: +86-15800900153
E: songwenyan@windouble.com.cn
E: songwenyan@windouble.com.cn
No.1230, Beiwu Road, Minhang District,Shanghai,China
| Quantity: | |
|---|---|
J68XFW975
Windouble
Main Parameters
| Model | J68XFW975 |
| Pole Pairs | 1 |
| Input Voltage | AC 7 Vrms |
| Input Frequency | 10000 Hz |
| Transformation Ratio | 0.5 ±10% |
| Accuracy | ±10' max |
| Phase Shift | 9° ±3° |
| Input Impedance | (120 ±18) Ω |
| Output Impedance | (360 ±54) Ω |
| Dielectric Strength | AC 500 Vrms 1min |
| Insulation Resistance | 250 MΩ min |
| Maximum Rotational Speed | 15000 rpm |
| Operating Temperature Range | -55℃ to +155℃ |
Structural Principle of Sine and Cosine Resolver
A resolver is a motor used for measurement purposes and is often used as an angle or speed sensor. The primary and secondary windings of a serocos resolver are placed on the stator and rotor respectively, and the degree of electromagnetic coupling between the primary and secondary windings is closely related to the rotation angle of the rotor.
Sincosine resolvers use the different relative positions between them to change the mutual inductance between them, so as to obtain the terminal voltage in the secondary (rotor) winding that is related to the rotation θ as a sine and cosine function.
Characteristics of the Output Signal of the Sine and Cosine Resolver
Many think that a sine and cosine resolver outputs a sinusoidal signal in one winding and a cosine signal in one winding, and the difference between the two is 90°, which is actually a misconception. A sine and cosine resolver is equivalent to an amplitude modulation device, and the excitation signal is equivalent to a carrier signal, usually a sine wave with a frequency of 400Hz, 1000Hz, or higher.
The sine and cosine signal associated with the rotation speed of the rotor is equivalent to a modulation signal, and when the resolver is stationary, the sine and cosine windings output a carrier signal, and when it rotates, a modulated amplitude modulation signal is output. When the resolver is two poles, the excitation frequency is 1000Hz, the rotor rotates at 3000r/min, and the amplitude modulation signal is output from a 50Hz sinusoidal modulated wave to a 1000Hz sinusoidal carrier.
Main Parameters
| Model | J68XFW975 |
| Pole Pairs | 1 |
| Input Voltage | AC 7 Vrms |
| Input Frequency | 10000 Hz |
| Transformation Ratio | 0.5 ±10% |
| Accuracy | ±10' max |
| Phase Shift | 9° ±3° |
| Input Impedance | (120 ±18) Ω |
| Output Impedance | (360 ±54) Ω |
| Dielectric Strength | AC 500 Vrms 1min |
| Insulation Resistance | 250 MΩ min |
| Maximum Rotational Speed | 15000 rpm |
| Operating Temperature Range | -55℃ to +155℃ |
Structural Principle of Sine and Cosine Resolver
A resolver is a motor used for measurement purposes and is often used as an angle or speed sensor. The primary and secondary windings of a serocos resolver are placed on the stator and rotor respectively, and the degree of electromagnetic coupling between the primary and secondary windings is closely related to the rotation angle of the rotor.
Sincosine resolvers use the different relative positions between them to change the mutual inductance between them, so as to obtain the terminal voltage in the secondary (rotor) winding that is related to the rotation θ as a sine and cosine function.
Characteristics of the Output Signal of the Sine and Cosine Resolver
Many think that a sine and cosine resolver outputs a sinusoidal signal in one winding and a cosine signal in one winding, and the difference between the two is 90°, which is actually a misconception. A sine and cosine resolver is equivalent to an amplitude modulation device, and the excitation signal is equivalent to a carrier signal, usually a sine wave with a frequency of 400Hz, 1000Hz, or higher.
The sine and cosine signal associated with the rotation speed of the rotor is equivalent to a modulation signal, and when the resolver is stationary, the sine and cosine windings output a carrier signal, and when it rotates, a modulated amplitude modulation signal is output. When the resolver is two poles, the excitation frequency is 1000Hz, the rotor rotates at 3000r/min, and the amplitude modulation signal is output from a 50Hz sinusoidal modulated wave to a 1000Hz sinusoidal carrier.
