Optical absolute encoder in Ø35mm kit design

The product design of the NOS35K is compact with a diameter of 35 mm and a depth of only 16.5 mm. A shaft bearing and a housing were deliberately omitted so that the kit encoder, consisting of an electronics carrier for the electronics and a coding wheel, fits into small spaces. The encoder is designed for shafts with Ø 5 / 6 / 6.35 mm for connection to the application. The Hirose plug makes electrical connection easy. The single-turn encoder module consists of a high-performance opto-ASIC with integrated high-precision amplifier circuits. This module is coupled to a special multi-track encoder disk that rotates between the LED emitter and the photodetector of the opto-ASIC.

SSI and RS-485 are available as interfaces, and 17 / 19 / 21 / 23 bits can be selected ex works for the resolution - a resolution of 23 bits corresponds to 8,388,607 steps over 360°. At room temperature, the NOS35K measures angles with an accuracy of ±300 arc seconds. The maximum actuation speed of the encoder is 12,000 rpm. The wide operating temperature range from -40° to +120 °C deserves special mention.