Our sensors for your measurements

Our technology

Magnetic sense sensors are used in various markets and different applications.

Our high-quality sensors and sensor solutions for measuring and controlling torque, axial, tensile and compressive forces help to increase efficiency and minimize costs in many application areas. They also increase safety and support intelligent, digital systems.

Magnetic Sense sensors offer outstanding performance and reliability. The basis for this is our innovative technology and the modular structure of our sensors.

Torque sensor assembly


Magnetic Sense sensors offer outstanding performance and reliability.

The basis for this is our innovative technology and the modular structure of our sensors.
 

Sturcture of the torque sensor

  • Controller: The small signals can be digitized and processed using powerful signal processing
  • Ferrite: The ferrite is an important building block for directing the coupled magnetic field and thus increasing the efficiency of the sensor
  • Sensor element: The magnetic field for the measurement is generated by planar coil inductances
  • Sensor housing: Application-specific design of the sensor housing ensures that the space requirements of customers can be met

Measures and dimensions of the torque sensor

The dimensioning of the sensor depends on the customer's installation space requirements. Various customer requirements can be implemented using a modular system.
Even small dimensions can be implemented in a product through close cooperation with customers.

A direct integration of the sensor into the customer application can also be implemented through a suitable design and dimensioning of the mechanical and electrical interfaces.

Measures and dimensions of the torque sensor

The dimensioning of the sensor depends on the customer's installation space requirements. Various customer requirements can be implemented using a modular system.
Even small dimensions can be implemented in a product through close cooperation with customers.

A direct integration of the sensor into the customer application can also be implemented through a suitable design and dimensioning of the mechanical and electrical interfaces.

Torque sensor signal and power supply

The sensor requires a 5V power supply. The current consumption is approx. 100mA at 5V. The output signal for the customer can be designed specifically.

Standard interfaces that are already implemented (SPI, UART, CAN) can be configured customer-specifically.

Torque sensor signal bandwidth

The standard signal bandwidth of the sensor is 100Hz with a signal-to-noise ratio of < 0.1% FS.

By adjusting the internal signal processing, the output signal can be adjusted to up to 1kHz.

Torque sensor signal bandwidth

The standard signal bandwidth of the sensor is 100Hz with a signal-to-noise ratio of < 0.1% FS.

By adjusting the internal signal processing, the output signal can be adjusted to up to 1kHz.

What forces can the sensor measure

The dimensioning and alignment of the measuring coils defines which mechanical forces are measured.

Customers who have the requirement to measure multiple force vectors, e.g. torque and axial forces, can be served by a customer-specific design and dimensioning of the sensor.

In addition, bending forces can also be determined by evaluating the measurement data. The sensor technology has been developed in such a way that various measuring tasks can be solved by small structural adjustments.

Torque

Axial force

Bending force

Torque

 

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Axial force

 

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Bending force

 

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Measurement requirements


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Material of the test object

An important prerequisite for the use of the technology is that the measuring shaft is hardened, and it consists of a ferromagnetic material. During initial conversations, we will be able to recommend suitable materials for the waves and the hardenings.
It is important to our customers that the measuring shaft and the sensor are well integrated and that the system is accurately coordinated.
The dimensions of the shaft and the safety factor for overload determine the expected accuracy in the application.

Positioning of the torque sensor

An important factor for accuracy and robustness in the application is the correct dimensioning of the sensor housing and the inclusion of the sensor in the customer application. If possible, the sensor mount must be designed in such a way that the position of the sensor with respect to the measuring point allows for as little movement as possible.
We therefore recommend attaching the sensor as close as possible to a shaft bearing or shaft support. The Active Sensor Module can be placed "inline" to the test object (as with the transmission shaft in the left image) or tangentially in relation to the cross-section of the shaft (right image).

Positioning of the torque sensor

An important factor for accuracy and robustness in the application is the correct dimensioning of the sensor housing and the inclusion of the sensor in the customer application. If possible, the sensor mount must be designed in such a way that the position of the sensor with respect to the measuring point allows for as little movement as possible.
We therefore recommend attaching the sensor as close as possible to a shaft bearing or shaft support. The Active Sensor Module can be placed "inline" to the test object (as with the transmission shaft in the left image) or tangentially in relation to the cross-section of the shaft (right image).

Distance between sensor module and target object

To achieve a reliable torque measurement, the sensor module does not have to touch the test object; the sensor can be up to 1mm from the measuring point.

However, it should be noted that the distance from the sensor to the measuring shaft does have an influence on the measuring accuracy.
The distance between the sensor and the measuring shaft dictates the sensitivity of the overall system. Therefore, the closer the sensor is to the measuring shaft, the greater the signal.

Multidimensional sensors

Depending on the measuring task and the requirements for measuring accuracy, multiple sensors can be used.
The use of multiple sensors can gather sufficient information to be able to minimize extraneous measuring effects.

In specific OEM applications, various sensors can also be integrated within one sensor module. 
Example of a torque sensor (left) or two torque sensors (right) placed closest to the surface of a rotating shaft (test object). 
The torque sensor will sense and measure the selected forces.

Multidimensional sensors

Depending on the measuring task and the requirements for measuring accuracy, multiple sensors can be used.
The use of multiple sensors can gather sufficient information to be able to minimize extraneous measuring effects.

In specific OEM applications, various sensors can also be integrated within one sensor module. 
Example of a torque sensor (left) or two torque sensors (right) placed closest to the surface of a rotating shaft (test object). 
The torque sensor will sense and measure the selected forces.

Operating conditions


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Mechanical shocks and vibrations

Mechanical shock or vibration may affect the sensor signal, so it is important to properly mount and align the sensor.
Appropriate measures in the design of the sensor enable us to recognize and limit the confusion factors during early stages of the development process with the customer.
Proper mounting and positioning of the sensor is essential to achieve accurate measurement results in the application.

Operating temperature range of the torque sensor

The components of the sensor are chosen to meet most industrial requirements from -40 °C to 105 °C.
Alternative components can be used, extending the temperature range to 125 °C.

Operating temperature range of the torque sensor

The components of the sensor are chosen to meet most industrial requirements from -40 °C to 105 °C.
Alternative components can be used, extending the temperature range to 125 °C.

Coating the test object surface with chrome / lacquer

Coatings, oil, rust or dust generally have no influence on the measurement result.
However, these factors must be examined in customer-specific tests on the customer wave and the specific application.

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Do you have questions about our sensors?

Contact our torque sensor and force sensor experts for advice.

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