Heidenhain presents encoder with inductive sensing as feedback systems for automation technology applications. The absolute singleturn ECI 119 encoders were developed for applications in direct drive technology and for mounting on hollow shaft motors. Above all, the dimensions of the device with a height of max. 19 mm and a housing diameter of 92 mm with a currently possible hollow shaft passage from 30 to 50 mm and the working temperature range from -20 ° to 115 ° C position the device for use in modern machine concepts.
In addition to its special technical features, the ECI 119 also has considerable functional reserves with regard to contamination, as well as shock and vibration influences.
High internal 14-bit interpolation of the inductively generated sampling signals generates an 19-bit absolute value (corresponds to 524288 positions) within one revolution. The position value is output via the EnDat interface with a clock frequency up to 2 MHz. Optionally, in addition to the purely serial position value in the dual code, a sinewave signal (1 Vss) with 32 signal periods can also be output via an output cable that is pluggable in both cases.
The EBI 1135 is another product with inductive sensing and EnDat interface. The absolute multiturn encoder achieves a total resolution of 35 bits (singleturn: 19 bit, multiturn: 16 bit). Due to the modular design without ball bearings and a battery-buffered revolution counter very compact dimensions are achieved. With an overall length of less than 13 mm and an outside diameter of only 35 mm, the encoder is one of the world's smallest absolute encoders and is therefore predestined for use in highly dynamic servomotors of small sizes.