T: +86-15800900153
E: songwenyan@windouble.com.cn
E: songwenyan@windouble.com.cn
No.1230, Beiwu Road, Minhang District,Shanghai,China
| Quantity: | |
|---|---|
J37XU9734G-L40
Windouble
Main Parameters
| Model | J37XU9732R | J37XU9733R | J37XU9734G-L40 |
| Pole Pairs | 2 | 3 | 4 |
| Input Voltage | AC 7 Vrms | AC 7 Vrms | AC 7 Vrms |
| Input Frequency | 10000 Hz | 10000 Hz | 10000 Hz |
| Transformation Ratio | 0.286 ±10% | 0.286 ±10% | 0.286 ±10% |
| Accuracy | ≤ ±60' | ≤ ±40' | ≤ ±30' |
| Phase Shift | ≤ ±10° | ≤ ±10° | ≤ ±10° |
| Dielectric Strength | AC 500 Vrms 1sec | ||
| Insulation Resistance | 250 MΩ min | ||
| Rotor Inner Diameter | 9.52 mm | 9.52 mm | 9.52 mm |
| Wire Cross Sectional Area | 0.35 mm² | 0.35 mm² | 0.35 mm² |
| Maximum Rotational Speed | 30000 rpm | 30000 rpm | 30000 rpm |
| Operating Temperature Range | -40℃ to +155℃ | ||
What is a Variable Reluctance Resolver (VRR)
The variable reluctance resolver is an innovative high-precision angular position sensor known for its simple structure, reliable operation, and high-speed capabilities. It offers a distinct advantage over traditional brushless resolvers with its unique working principle and design.
Differences from Common Brushless Resolvers
Unlike common brushless resolvers with a uniform air gap, the variable reluctance resolver calculates the rotor angle position based on the sinusoidal variation in air gap permeability caused by the rotor's salient pole effect. The resolver's signal and excitation windings are fixed to the stator, while the rotor consists of selected toothed pieces without any windings, achieving non-contact operation.
Unique Structure
Exciting winding, output winding, and sinusoidal winding are all rotors arranged in the stator core grooves. The rotor is composed solely of toothed pieces, eliminating the need for windings. Both output and input windings are densely wound with varying numbers of turns following the sinusoidal law.
Applications
Automotive Electronic Power Steering (EPS): The variable reluctance resolver provides accurate steering angle feedback, which is essential for the operation of electronic power steering systems in vehicles. It helps to ensure smooth and precise steering responses.
Electric Vehicles: In electric vehicles, these resolvers are used for various control systems, including motor control and regenerative braking systems. They offer precise position sensing for the electric motor shafts, contributing to efficient energy use and performance.
Mining Machinery: In the harsh environments typical of mining operations, variable reluctance resolvers are used for their robustness and precision. They provide reliable position sensing for machinery such as excavators and drills, ensuring safe and effective operation.
High-Speed Rail Systems: For high-speed trains, the variable reluctance resolver is crucial for the control of various systems, including traction and braking. It ensures precise control over the train's movement, contributing to both safety and efficiency.
Main Parameters
| Model | J37XU9732R | J37XU9733R | J37XU9734G-L40 |
| Pole Pairs | 2 | 3 | 4 |
| Input Voltage | AC 7 Vrms | AC 7 Vrms | AC 7 Vrms |
| Input Frequency | 10000 Hz | 10000 Hz | 10000 Hz |
| Transformation Ratio | 0.286 ±10% | 0.286 ±10% | 0.286 ±10% |
| Accuracy | ≤ ±60' | ≤ ±40' | ≤ ±30' |
| Phase Shift | ≤ ±10° | ≤ ±10° | ≤ ±10° |
| Dielectric Strength | AC 500 Vrms 1sec | ||
| Insulation Resistance | 250 MΩ min | ||
| Rotor Inner Diameter | 9.52 mm | 9.52 mm | 9.52 mm |
| Wire Cross Sectional Area | 0.35 mm² | 0.35 mm² | 0.35 mm² |
| Maximum Rotational Speed | 30000 rpm | 30000 rpm | 30000 rpm |
| Operating Temperature Range | -40℃ to +155℃ | ||
What is a Variable Reluctance Resolver (VRR)
The variable reluctance resolver is an innovative high-precision angular position sensor known for its simple structure, reliable operation, and high-speed capabilities. It offers a distinct advantage over traditional brushless resolvers with its unique working principle and design.
Differences from Common Brushless Resolvers
Unlike common brushless resolvers with a uniform air gap, the variable reluctance resolver calculates the rotor angle position based on the sinusoidal variation in air gap permeability caused by the rotor's salient pole effect. The resolver's signal and excitation windings are fixed to the stator, while the rotor consists of selected toothed pieces without any windings, achieving non-contact operation.
Unique Structure
Exciting winding, output winding, and sinusoidal winding are all rotors arranged in the stator core grooves. The rotor is composed solely of toothed pieces, eliminating the need for windings. Both output and input windings are densely wound with varying numbers of turns following the sinusoidal law.
Applications
Automotive Electronic Power Steering (EPS): The variable reluctance resolver provides accurate steering angle feedback, which is essential for the operation of electronic power steering systems in vehicles. It helps to ensure smooth and precise steering responses.
Electric Vehicles: In electric vehicles, these resolvers are used for various control systems, including motor control and regenerative braking systems. They offer precise position sensing for the electric motor shafts, contributing to efficient energy use and performance.
Mining Machinery: In the harsh environments typical of mining operations, variable reluctance resolvers are used for their robustness and precision. They provide reliable position sensing for machinery such as excavators and drills, ensuring safe and effective operation.
High-Speed Rail Systems: For high-speed trains, the variable reluctance resolver is crucial for the control of various systems, including traction and braking. It ensures precise control over the train's movement, contributing to both safety and efficiency.
