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Rotary magnetic Hall effect sensors
Rotary magnetic Hall effect sensors provide precise rotational position feedback by detecting changes in magnetic fields. Utilizing the Hall effect principle, these sensors generate electrical signals in response to nearby magnetic fields, enabling accurate measurement of angular displacement. Our extensive range is ideal for industrial automation, robotics, and automotive applications where reliable position sensing is crucial. Their non-contact operation reduces wear and tear, extending operational life and minimizing maintenance, making them perfect for high-cycle use.
Versatile rotary magnetic sensors
These sensors are also resistant to dust, moisture, and temperature variations, ensuring dependable performance in challenging environments. With various configurations and output options including analog, digital, and pulse-width modulation (PWM) our rotary magnetic Hall effect sensors integrate easily into existing systems, enhancing efficiency and reliability. Whether for motor control, robotics, or instrumentation, our selection meets diverse requirements, and our expert team is ready to help you choose the ideal sensor for your needs.
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Non-contact operationThese sensors reduce wear and tear through non-contact technology, enhancing durability for high-cycle applications.
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Environmental resistanceBuilt to endure dust, moisture, and temperature variations, they provide reliable performance in harsh industrial environments.
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Flexible integrationWith various configurations and output types (analog, digital, PWM), these sensors easily integrate into existing systems for diverse applications like motor control and robotics.
Considerations for selecting rotary magnetic hall effect sensors
When choosing rotary magnetic hall effect sensors for your application, several important factors should be taken into account to ensure optimal performance and compatibility:
- Measurement range: Determine the necessary rotational range for your application. Choose a sensor that accurately measures the full extent of rotation to ensure precise readings.
- Output type: Rotary magnetic Hall effect sensors offer digital and analog output options. Ensure compatibility with your existing control systems for seamless integration and effective data acquisition.
- Sensitivity and resolution: Assess the sensors sensitivity and resolution. Higher specifications are crucial for applications requiring precision, so select a Hall effect sensor that meets your needs.
- Environmental conditions: Consider the operating environment. Factors like temperature, humidity, and exposure to dust can affect performance, so choose a sensor designed to handle these challenges.
- Mounting and size: Review the physical dimensions and mounting requirements to ensure the sensor fits your installation space and is easy to mount.
- Response time: For applications needing real-time feedback, select rotary magnetic Hall effect sensors with fast response times to ensure timely data collection.
To ensure reliable operation and accurate measurements in your application, it's essential to carefully evaluate the factors involved in selecting the right rotary magnetic Hall effect sensor for your needs.
If you would like to learn more about our rotary magnetic Hall effect sensors and explore solutions tailored specifically to your application requirements, contact us today.
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Frequently asked questions about Rotary magnetic Hall effect sensors
Answers to the most important technical Questions
How does a magnetic Hall-effect rotary position sensor measure angle without contact?
A magnetic Hall-effect rotary position sensor measures angle without contact by detecting changes in a magnetic field. This type of magnetic rotary position sensor uses a magnet coupled to the rotating shaft or axis. As the shaft rotates, the orientation of the magnetic field changes relative to the Hall element inside the sensor. The Hall element detects this change and converts it into an electrical output signal that is proportional to the angle of rotation. Because no mechanical contact is required between the magnet and the sensing element, the sensor operates with minimal wear and is well suited to applications involving frequent movement, vibration or demanding environmental conditions. Reliable angle measurement depends on correct alignment of the magnet and sensor, the permissible air gap, secure mechanical mounting, the appropriate output signal and the environmental conditions.
Are magnetic Hall-effect rotary position sensors resistant to dust, oil and moisture?
Yes. Because they measure without contact, magnetic Hall-effect rotary position sensors are generally less sensitive to dust, oil and moisture than contact-based rotary position sensors. This makes magnetic rotary position sensors well suited to many demanding industrial applications. Since there is no mechanical sliding contact, wear is reduced and contamination usually has less influence on the measurement principle. For harsh industrial environments, however, the specific protection rating and sensor design are important. Many Althen Hall-effect rotary position sensors are designed for robust operation and, depending on the model, are suitable for high temperature ranges and demanding operating conditions. If the sensor is continuously exposed to oil, water, dust, cleaning agents or high humidity, the housing material, sealing, connection type and IP protection rating should be checked in the datasheet.
What accuracy can be achieved with magnetic Hall-effect rotary position sensors?
The achievable accuracy of magnetic Hall-effect rotary position sensors depends on the product series, electrical angular range, output signal, mounting and environmental conditions. These magnetic rotary position sensors provide contactless rotational position feedback for applications including industrial automation, robotics and vehicle technology. Specific values depend on the model. For the HSM22 and HSM30, the independent linearity tolerance is ±0.5% of full scale at an electrical angle of 360°. The output temperature characteristic is within ±0.3% Vout/FS. The HSM22 is designed for -40 °C to +105 °C, while the HSM30 is designed for -40 °C to +120 °C. For applications with high accuracy requirements, resolution, sensitivity, response time, shaft coupling, supply voltage, temperature range and protection rating should also be considered in addition to linearity. Althen can help select a suitable magnetic Hall-effect rotary position sensor for the application.