59070-3-U-05-E

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Magnetic sensors are fundamentally used to determine the position, location, speed, or presence of a magnetic source. This type of sensor relies on the detection of the magnetic fields produced by either permanent magnets or electromagnets. When faced with the task of locating, determining the speed, or sensing presence of a magnet, a suitable magnetic sensor can be a highly reliable source of accurate data.

The model 59070-3-U-05-E from the Magnetic Sensors - Position, Proximity, Speed (Modules) range is a electronic device designed to measure the distance of a permanent magnet from the sensor surface. The device consists of 2 elements: a coil and a magnet. The device is capable of sensing the presence of the magnet when it is within 8 mm from the device surface and providing a 0-5V signal proportional to the distance. This magnetic sensor can be used in industrial automation applications such as safety devices and emergency systems.

The 59070-3-U-05-E model works as a classic inductive proximity sensor measuring the distance of a magnet from the device surface by detecting the change in the magnetic field strength as the magnet approaches the surface. The device contains an inductive coil wound over an iron core, known as the excitation winding and a magnet. When the magnet approaches the sensor, the magnetic field generated by the excitation winding is reduced. This change is detected by an ultrasonic amplifier that generates a voltage proportional to the distance of the magnet from the device.

This model is a 2-wire device, meaning that its operation is based on a loop current created between the power supply and the sensor. The sensor requires a voltage of 0-10V for powering the internal amplifier and sending the signal. The coil induction is directly proportional to the distance of the magnet from the device, so as the magnet approaches the sensor, the signal voltage is increased accordingly. The amplifier provides the output voltage which is proportional to the distance and can be compared to a voltage reference to generate the 0-5V output.

The 59070-3-U-05-E is a highly reliable and low-cost device intended for industrial applications requiring a precise and reliable indication of the proximity of an object or part. It is capable of measuring a magnetic field up to 8 mm from the sensor and provides a linear output with high accuracy and fast response times. The linearized output can be easily calibrated for a variety of different applications, such as safety systems and emergency applications. For these reasons, the device is an ideal choice for reliable sensing of the presence of a magnetic source.

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