Magnet Testing

MHLS – matesy Hall Line Sensor

High-Precision and Large-Area Magnet Characterization

The matesy Hall Line Sensor, (MHLS) is the latest pioneering innovation from matesy GmbH Jena. The newly developed sensor is used for both the high-precision, rapid, and large-area characterization of magnetic elements and entire assemblies.

Product Description

The MHLS is extremely flexible to use thanks to its compact and robust design. The development of ever more efficient electric motors in areas such as automotive engineering and wind energy is playing an ever increasing role, where the highest precision and quality of the magnetic components used is crucial, particularly in the energy and mobility transition.

This is where the MHLS sensor comes into its own with its flexibility, speed, and accuracy. Inline quality control, test, and development facilities across all industries can now be equipped with the MHLS to ensure best possible real-time control of magnetic components during the production process.

Integration into existing systems is simple, thanks to data transfer by fieldbus. The MHLS is available in four sizes in stages 80, 160, 240, 320 and with a standard measuring range of ± 800 mT. If required, the sensor system can be configured for measurement ranges from ±100 mT to ±2 T, thus covering almost any application.

Hall Line Sensor variants


Measuring length: 77.5 mm
Sensor triplets per 3D sensor board: 32 pcs.

Product request

MHLS 160

Measuring length: 157.5 mm
Sensor triplets per 3D sensor board: 64 pcs.

Product request

MHLS 240

Measuring length: 237.5 mm
Sensor triplets per 3D sensor board: 96 pcs.

Product request

MHLS 320

Measuring length: 317.5 mm
Sensor triplets per 3D sensor board: 128 pcs.

Product request

Design & Function

At the heart of the product is an array of highly integrated triple axis Hall sensors, the first to be implemented with this level of precision and complexity. All sensor triplets have a small sensor volume, therefore allowing for point-precise field and vector determination of magnetic stray fields. The sensor triplets are linearly arranged with high precision at a distance of 2.5 mm on specially designed circuit boards and interconnected to achieve high accuracy and a high measuring frequency (sampling rate)

Sensor arrangement:
0.9 mm below the housing cover, 16 to 64 high-precision Hall sensor ICs are arranged. Each sensor is equipped with its own temperature sensor and is therefore temperature compensated in addition to the magnetic field calibration.

Product Highlights

  • Cascadable design in levels 80, 160, 240, 320
  • Triple axis Hall sensor technology
  • High measurement frequency: 200 fps
  • Extremely compact design
  • Measuring range up to ± 800 mT, traceable and calibratable
  • High accuracy: 0.5% to ± 800 mT
  • Digital data output
  • Trigger – I/O
  • Integrated sensor monitoring
  • Housing for industrial environments


  • Reduction of the movable and controllable axes
  • Reduction in the software effort
  • Automation capability due to fieldbus system
  • High measurement speed
  • 100% control possible with short cycle time
  • Robustness
  • Variable use
  • Integration into existing production lines possible
  • Comparability with previous measurement results
  • More cost-effective than "whole" measuring machines (mappers/rotor measuring stations)

Technical Specifications

  • Sensor pitch: 2.5 mm
  • 3D measurement accuracy: 0.5% to ± 800 mT
  • Minimum measurement distance: 0.9 mm
  • Measurement rate (3D): 200 fps
  • Interface: USB, UART (RS422)

Application Areas

  • Automotive applications
  • Aerospace applications
  • Drive technology
  • Medical technology
  • Industrial automation



MHLS – matesy Hall Line Sensor

(9.9 MiB)