Palo Alto, Calif. Agilent Technologies Inc. has launched a new, thinner version of its absolute encoder module that is said to be the smallest in the industry. Designated as the AEAS-7500 encoder, the new high-speed device measures 16-mm thick, which is 2.85 mm thinner than the previous AEAS-7000 version, while providing the same performance. It also reduces assembly time and costs for industrial automation equipment applications.
Absolute encoders are used in machines that need information about the position of components before any motion occurs, and this new encoder targets space-constrained industrial automation applications such as servo motors, robotics, machine tools and wafer handlers.
The new encoder offers 65,536 absolute positions in a single revolution, and provides a 16-MHz serial synchronous data output for high-speed applications such as servo motors up to 12,000 rpm. Other key characteristics include a 5-volt supply voltage, gray code correction to ±1 LSB, which decreases code wheel misalignment errors, and a serial output for a reduction in wiring costs.
The device also eliminates hunting for most and least significant bits (MSB and LSB), and supplies additional sine/cosine analog outputs. The standard operating temperature is -25°C to 85°C.
The encoder consists of the sensor read head, LED and code wheel. It is provided with a plastic (instead of metal) detector assembly, which means it can be installed with a wider variety of adhesives on more types of case materials.
Compared with traditional absolute encoders, the new device significantly reduces the number of components required from approximately 120 to as few as three, said the company. This simplifies the customer's supply chain by decreasing inventory, manufacturing and purchasing costs. Click here for more information.
The AEAS-7500-1GSG0 package of LED, sensor read head and code wheel for 16-bit operation is priced at $35 each in quantities of 6,000.
Agilent Semiconductor Products Group, 1-800-235-0312, www.agilent.com