SS441A-T2

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Magnetic sensors - switches (solid state) when used are designed to detect relative motion between a magnet and a reed switch that is electrically isolated from the system. The SS441A-T2 dual-stage position sensing device is a dual-stage, solid state, non-contact magnetic position sensor typically used in various applications. This device provides reliable and accurate analog outputs for angular motion within a user-specified range and operating environment.

The SS441A-T2 is the latest version of the SS441-T2 position sensor made by Johanson Dielectrics. It is designed to accurately sense angular motion, utilizing a combination of two angled, non-contact magnetic sensors and a potentiometer connected to a gearhead. The potentiometer outputs an analog signal proportional to the angular displacement. The device has a linear output range of up to five potentiometer turns and is sealed for environmental protection. The magnetic sensors are capable of measuring angles up to 180° without any additional components, simplifying the sensing system design.

The SS441A-T2 solid state sensor consists of a combination of two angled Hall-effect sensors along with an integrated, linear, high precision potentiometer. The Hall-effect sensors detect the strength of the magnetic field from a magnet, which is typically mounted on the rotating component to be measured. The Hall-effect sensors are usually mounted in parallel so the magnetic field generated by the magnet is detected in both directions (plus and minus). This results in an average gain of the output signal and enables the SS441A-T2 to detect angular motion up to 360°.

The output of the SS441A-T2 is a varying voltage, which is determined by the position of the magnet in relation to the Hall-effect sensors. The individual Hall-effect sensor outputs are combined together and then sent through a separate gain stage and then made available by the SS441A-T2 as the final output. The output voltage is proportional to the angular displacement of the magnet in relation to the sensors.

The SS441A-T2 is commonly used for angular (rotary) motion applications in which precise angular position information is required, including those in automotive, industrial, aerospace, and medical equipment. The device provides reliable and accurate analog outputs for angular motion within a user-specified range and operating environment. It is also becoming increasingly popular in robotic applications to accurately measure angular movement.

The SS441A-T2 position sensing device offers a variety of features which improve its performance compared to other solid state position sensing devices. These features include a wide operating temperature range, a wide range of input voltages, a low current consumption, and a choice of four gain settings. Furthermore, it is highly resistant to electrical noise and vibration. The device is also programmable via serial digital data communication.

The SS441A-T2 solid state, non-contact magnetic position sensor offers a broad range of versatile and reliable sensing solutions. With its high-precision and durability, it can be used in a variety of applications requiring precise angular measurements. The programmability of the device also enables the user to customize the settings for their specific application requirements. It is an excellent choice for reliable and accurate analog output for angular motion sensing.

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