App note: Using the Si72xx hall-effect magnetic position sensors

App note from Silicon Labs on their hall-effect Si72xx magnetic sensor to sense position, count revolution and security system seal tamper sensing. Link here (PDF) These devices all measure magnetic field in the axis perpendicular to the package. All of these parts share the attributes of low power, high sensitivity, and low noise. The simplest […]

App note: AMR angle sensors

Position measurement sensor using magnetoresistive technology discussed in this app note from Analog Devices. Link here (PDF) Anisotropic magnetoresistive (AMR), thin film materials are becoming increasingly important in today‚Äôs position sensing technologies. Magnetoresistive (MR) position measurement has many advantages over traditional technologies. Reliability, accuracy, and overall robustness are the primary factors contributing to the development […]

App note: Position sensing technologies in automotive applications

An Autopad(TM) sensor from TT Electronics provides a new non contact position sensing. Link here (PDF) Automotive design engineers are continuously seeking components that offer performance and flexibility beyond those of conventional position sensing technologies. Further still are the requirements that these devices be versatile and adaptable to a wide range of applications. This demand […]

Laser Position Sensor

Joe Grand of Grand Idea Studio has released the code and complete design files for his open source Laser Position Sensor (LPS) project. The project is based on the Freescale MC9S08JM8CLC and several Linear Technology LT1491ACS op amps. (Despite the references to Parallax in the LPS project documentation, this device is an open source project […]