RS Components 欧时 8315802 振动传感器

The VF401 is a high performance MR (magnetoresistive) sensor specially designed for sensing fine pitch ring magnets. It is a digital sensor in a miniature, flat, TO-92 style plastic package with a current output and 2 wire design. The VF401 bridge array is able to offer a reduced loss is sensor signal and accuracy and yet still be optimized to allow a greater air gap between the target and the sensor. It has a reduced sensitivity to run-out and is less sensitive to tilt tolerance accepting up to 10°, versus other typical ring magnets which can only accept up to 2° to 3° angle.Potential Applications:. Transportation. Speed encoding using a multi-pole ring magnet. Enhanced accuracy rotational position sensing. Wheel speed sensing. Window lift applications. Speed and direction sensing. Industrial. Shaft speed encoding using a multi-pole ring magnet. Enhanced accuracy rotational position sensing. Precision motor speed measurement. Speed control in machine tools. Elevator speed sensing. Speed control in motorized industrial equipment. Medical. Shaft speed encoding using a multi-pole ring magnetRobust design operating from -40 to +150 °C. Reverse polarity protection. Patented MR bridge . 2-wire digital current output simplifies wiring and interfacing which can reduce total system cost. Enhanced sensitivity. Wide speed capability . Output pattern independent of gap between target and sensorMaximum Current = 16.8 mAMaximum DC Voltage = 16VSwitching Frequency = 3 kHzLength = 4.06mmWidth = 3mmDepth = 1.57mmMinimum Operating Temperature = -40°CMaximum Operating Temperature = +150°CDimensions = 4.06 x 3 x 1.57 mm