A Hall effect sensor uses the Hall effect to detect and measure magnetic fields. When a conductor carrying an electric current is placed in a magnetic field, a voltage proportional to both the current and the field appears across it: this is the Hall effect. MGA Technologies developed a lead cutting and forming machine for components and sensors, designed to prepare these parts before assembly.
When a magnetic field or a metal part passes through the sensing area, the sensor delivers a signal and generates a voltage that reflects the current being measured or monitored. Although it is very thin, the Hall effect sensor is both robust and highly sensitive.
Specificities and Technical Features of a Hall Effect Sensor
The Hall effect sensor is very sensitive and offers high mechanical resistance. Because it is insensitive to its environment and protected against reverse polarity, it provides a fast, compact and reliable detection technique. It generally has 3 to 8 legs (pins) and a plastic housing, and it can be unipolar, omnipolar or bipolar, with a linear output on an amplifier.
Its main technical characteristics are the following:
- Output type: linear or on/off,
- Magnetic sensitivity (in Gs or T): at 5 V, min 0.75 mV/gauss, max 1.72 mV/gauss. Gauss is the sensitivity range for linear-output sensors, and T the switching point for on/off sensors,
- Supply voltage: 4.5 to 6 V, a wide range that makes it easy to use,
- Polarity: unipolar or bipolar (sensitive to the North pole, the South pole or both),
- Output resistance: 50 ohms,
- Operating temperature: -20°C to +85°C,
- Supply current: 9 mA,
- Magnetic flux density: unlimited.
The Various Applications of a Sensor in Industry
This type of sensor has many uses. It is widely found in the aerospace, automotive and precision engineering sectors. Often used as an angular position sensor and as a speed sensor, it is used for motor control, for detecting the direction of rotation of a part, or for battery management.
Sensor Assembly, Inspection and Testing
Assembling an electronic sensor requires a versatile automatic line that can handle different sensor configurations according to customer needs, such as the Hall effect sensor assembly line designed by MGA Technologies.
For industrial applications, sensors are delivered in strips of tens or hundreds of components. They must be cut and bent before they can be soldered onto electronic circuits.
The sensors therefore go through a cutting and bending machine, which gives them the required shape and cuts them in series to the specified dimensions. They are then assembled by laser welding.
There are two types of machines on the market for cutting and bending sensors: automatic and manual. The automatic option is preferred for higher-quality bending and high-volume production. The manual option is mostly used for training in schools and institutes, or for testing.
When the sensors are used as speed sensors, a laboratory test characterizes them at rotational speeds ranging from 100 to 10,000 rpm. This requires a dedicated test bench.
In the automotive industry, sensors that detect the position of a vehicle’s gear lever are programmed and electrically tested. These sensors also require a dedicated test bench.
Tailored Support to Industrialize Your Sensing Solutions
Industrializing sensing solutions based on Hall effect sensors requires a global approach that takes into account technical constraints, performance requirements and production targets. Every application has its own specificities, whether in terms of measurement accuracy, miniaturization, production rate or integration into a complex industrial environment. Tailored support secures each stage of the project, from design to production start-up.
The process usually starts with an in-depth analysis of the functional needs and operating constraints of the sensors. Sensing solutions must be adapted to the equipment, to the environmental conditions and to the expected level of accuracy. The goal is a perfect match between the performance of the Hall effect sensor and the requirements of the final application.
Technical support also covers the optimization of manufacturing and assembly processes. Positioning, bending and integration steps can be automated to improve repeatability and limit the risk of errors. This industrialization stabilizes component quality while increasing the productivity of production lines.
Suitable solutions also make validation and quality control easier. Systems can include measurement and supervision devices that ensure full traceability of operations and fast detection of any deviation. Finally, tailored support gives you more flexibility to adapt your sensing solutions to future needs, helping you react faster, optimize your investments and secure your development and industrialization projects over the long term.
About MGA Technologies
Specializing in the automation of production, component assembly and test processes, MGA Technologies has designed many production lines for its customers, including a sensor test bench, a test bench for programming and testing Hall effect sensors, and an automatic line for manufacturing electronic sensors.
MGA Technologies also designs and builds custom special machines for many sectors, including precision engineering, automotive, food processing and aerospace.
The company also designs and manufactures specific equipment for cleanroom use, intended for professionals in the pharmaceutical, biotech and medical industries. See also our custom inspection, testing and identification machines.
If you would like more information about our cutting and bending machine for Hall effect sensors, contact us via our contact form or by phone.
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Contact our commercial team to get a customized quote for a MGA Technologies Hall effect sensor bending machine tool.
