Magnetic-Encoder Chip

Sept. 8, 2009
AM256 magnetic 8-bit encoder chip is for noncontact angular position encoding over 360°, providing incremental, parallel, serial SSI, and analog sinusoidal output options

The solid-state, AM256 magnetic 8-bit encoder chip is for noncontact angular position encoding over 360°, providing incremental, parallel, serial SSI, and analog sinusoidal output options. The encoder’s circuit senses the angular position of a diametrically polarized, cylindrical magnet placed above it. A circular array of Hall sensors, around the center of the IC, detects the magnetic-flux density distribution at the surface of the silicon and delivers a voltage representation of the magnetic field distribution. Sine and cosine voltage outputs vary with magnet position, and are converted to absolute position with a fast 8-bit Flash interpolator. Relative changes of angle position are output as incremental A quad B signals with 8-bit/256 counts per revolution.

The AM256 operates at -40 to 125°C, has high resistance to shock and vibration, and rotational speed capability up to 60,000 rpm.

The DMX-K-SA-11 microstep motor, from Arcus Technology, Livermore, Calif., integrates the AM256 encoder with a driver and controller in a single NEMA-11 package real-time position verification. The stepper motor is a 16-microstep driver capable of full, ½, ¼, or 1/16 microsteps in three different stack sizes suitable for sizesensitive biomedical, optical, semiconductor and similar applications requiring open-loop microstep motion with real-time position confirmation.

Renishaw Inc.
5277 Trillium Blvd.
Hoffman Estates, IL 60192
(847) 286-9953
www.renishaw.com

Sponsored Recommendations

The entire spectrum of drive technology

June 5, 2024
Read exciting stories about all aspects of maxon drive technology in our magazine.

MONITORING RELAYS — TYPES AND APPLICATIONS

May 15, 2024
Production equipment is expensive and needs to be protected against input abnormalities such as voltage, current, frequency, and phase to stay online and in operation for the ...

Solenoid Valve Mechanics: Understanding Force Balance Equations

May 13, 2024
When evaluating a solenoid valve for a particular application, it is important to ensure that the valve can both remain in state and transition between its de-energized and fully...

Solenoid Valve Basics: What They Are, What They Do, and How They Work

May 13, 2024
A solenoid valve is an electromechanical device used to control the flow of a liquid or gas. It is comprised of two features: a solenoid and a valve. The solenoid is an electric...

Voice your opinion!

To join the conversation, and become an exclusive member of Machine Design, create an account today!