EM1781

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Magnetic Sensors - Switches (Solid State) are sensors that detect changes in a magnetic field or current and can be used in a variety of applications, from detecting mechanical objects to process control. EM1781 is an ideal choice for such applications as it offers high accuracy and a wide range of sensitivity. It is also relatively small in size and can be easily integrated into existing systems.

The EM1781 is a dual-axis Hall Effect device, which means that it detects a magnetic field in two directions. It has an operating range of -40°C to +85°C, making it suitable for both indoor and outdoor applications. The sensitivity of the sensor can be adjusted to suit a variety of applications. It has a minimum sensitivity of 0.15mV/G to a maximum of 1.00V/G. It also has a wide bandwidth of 10 Hz to 700 kHz.

In terms of its application field, the EM1781 can be used for a variety of purposes, including the detection of objects in mechanical systems. This includes applications such as proximity switches, presence detectors, end-stop detection, and impact detection. It can also be used in process control and for measuring flow rates, pressure level, and liquid levels. In addition to this, the EM1781 can be used in medical applications such as position and pressure sensing in medical beds and bedsores, and motion and temperature monitoring in respirators.

In terms of its working principle, the EM1781 operates on the principle of the Hall Effect. When a magnetic field is present, the electrons in the material will experience a force. This is known as the Hall Effect and is measured in volts per tesla (V/T). The EM1781 is made up of two elements, a magnetoresistive element and a Hall-Effect element. The former is made up of a ferromagnetic material, which is sensitive to changes in the magnetic field. The Hall-Effect element is connected to the magnetoresistive element and is the responsible for detecting and measuring the change in the magnetic field.

The device is powered by a DC voltage from 2.7V to 5.5V and has an output of either digital high or low depending on the magnetic field. There are a number of outputs available, such as intermittent, duty cycle, open-collector, and LVTTL. In addition, the EM1781 has an externally selectable high- and low-threshold setting for the Hall-Effect element, which enables the user to set the sensitivities for different levels of magnetic field. This enables the sensor to be tailored to suit the application.

The EM1781 is applicable in a number of scenarios and has the advantages of being low power and small in size. It can operate over a wide temperature range and has adjustable sensitivities. This makes it an ideal choice for many applications and is a reliable and cost-effective option.

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