Encoders and resolvers are used to track the angular or linear position of an object, such as a motor shaft (angular measurement) or a linear actuator (linear measurement). And with the addition of a clock signal, encoders and resolvers can also be used to measure the speed of the object. A resolver uses a rotor with […]
Encoders
What’s the difference between radial and axial ring encoders?
A traditional rotary encoder measures the position or speed of a rotating shaft, with mounting via a coupling or a hollow bore that allows the encoder to fit over the shaft. But not all rotating components have a shaft to which the encoder can mount. For example, direct-drive rotary motors — also known as torque motors, […]
Quantum Devices QML35 rotary encoder replaces RENCO product
Users of now-obsolete RENCO model turn to Quantum Devices. Since being absorbed by Heidenhain, RENCO has eliminated many of their encoder products. The most recent model discontinued is their RCML15 rotary encoder, a slim and lightweight commutating encoder popular among motor designers and used in a multitude of industries. To help fill the needs of […]
Strong first quarter for the Kübler Group
The Black Forest family business Kübler, one of the leading suppliers of encoders (position and motion sensors), slip rings (transmission technology), counting and display technology, has made a particularly successful start to the first quarter of 2021. A revival had already become apparent at the end of 2020. Despite the aggravated pandemic conditions and an […]
Shaft absolute encoder designed for harsh environments
The new Model A58SB absolute bus encoder from Encoder Products Company (EPC) is designed for harsh factory and plant floor environments. Heavy duty, rugged and reliable, this shaft absolute encoder is available in both single and multi-turn resolution. As an absolute encoder, it’s especially suited to applications where an encoder needs to retain position information […]
POSITAL precision magnetic encoders now with BiSS-C communications interface
POSITAL’s IXARC high-precision magnetic absolute rotary encoders will be available with a BiSS-C interface. Encoders with this interface are ideal for commutation and position feedback on brushless dc servo motors and are also a good fit for motion control applications, such as medical equipment. They feature robust design, 17-bit resolution and good dynamic response (up […]
What are inductive encoders and how do they differ from resolvers and LVDTs?
Position measuring devices that rely on the principle of mutual induction include resolvers, linear variable differential transformers (LVDTs), and inductive encoders. Two of these technologies — resolvers and LVDTs — are based on the construction and operation of a transformer. In the case of an LVDT, voltage is applied to a primary winding and induced in […]
Magnetic ring encoder features functional safety for machine tool applications
HEIDENHAIN’s new absolute modular magnetic angle encoder is for applications needing contamination-resistant encoders with functional safety (FS) for machine feedback. This new ECM 2400 encoder supplements HEIDENHAIN’s portfolio of absolute angle encoders and is designed for machine tool applications that require a sturdy encoder with medium accuracy. The ECM 2400 is suitable for applications with […]
Absolute encoder interfaces: Differences between SSI, BiSS, Hiperface, and EnDat
Absolute encoders can communicate with controllers through parallel or serial wiring, over a fieldbus, or via an Ethernet-based protocol such as EtherCAT. Of these options, serial communication is a simpler solution than parallel wiring (which requires a twisted pair of wires for each bit of output) and is well-suited for applications that aren’t complex enough […]
New spring-loaded pivot arm for wheel-encoder assemblies
POSITAL has introduced a new spring-loaded pivot arm mounting system for wheel-encoder assemblies. Like earlier spring-loaded mounting brackets, this device is designed to minimize slippage by maintaining a steady contact pressure between the wheel and the moving surface. However, the pivot arm can accommodate larger lateral movements of the moving surface. Spring tension can be […]
