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Renishaw’s associate company RLS has launched high-performance miniature encoder sensors for embedded OEM motion control applications. With their small size and lightweight design, the new sensors are suitable for applications including medical products, optics positioning, robot control, 3D printers, gimbals and handheld devices.

The miniature sensors come in four shapes and offer linear and rotary performance at resolutions to 0.244µm for linear applications and to 753,664cpr for rotary applications.

The encoders consist of a miniature sensor and a magnetic scale or a ring. The sensors are available either in a potted housing or as PCB board level sensors. The position information is output in incremental quadrature TTL or RS422 and parallel in SSI and BiSS-C formats with the option of a unique or periodic reference mark. The RLS non-contact sensing technology is claimed to offer high reliability and performance in harsh applications.

RLS encoders in detail

RoLin — for integration into small motion systems

  • This is a miniature, packaged, robust magnetic position encoder designed for either linear or rotary position feedback.
  • RoLin is available as a ‘PCB circuit board ready’ readhead for integration into small motion system designs. 
  • It is also available as a standalone packaged readhead with flex cable connection.

RLC — two designs for direct PCB installation or cable soldering

  • A PCB board level magnetic encoder sensor has been specifically designed for integration into high-volume OEMs.
  • High speed, high reliability and high resolution coupled with large installation tolerances ensure that this sensor can be installed quickly and cost effectively every time.
  • Magnetic scale technology ensures that position feedback is maintained even if the scale is severely contaminated.

RLB — with FPC flat cable connector for higher-volume OEMs

  • This is similar to RLC, but with an FPC flat cable connector, giving OEMs the freedom to use a cable and a connector (rather than solder assembly), which is usually the reserve of higher-volume deeper-integration OEMs.

Renishaw

A world leader in engineering technologies, Renishaw’s core skills in measurement and precision machining serve sectors as diverse as dimensional metrology, spectroscopy, machine calibration, motion control, dentistry and surgical robotics.

A world leader in engineering technologies, Renishaw’s core skills in measurement and precision machining serve sectors as diverse as dimensional metrology, spectroscopy, machine calibration, motion control, dentistry and surgical robotics.

Sensors for co-ordinate measuring machines (CMMs) are an industry standard, from basic touch-trigger probes through to automated stylus and probe changers, motorised indexing probe heads, and revolutionary five-axis measurement systems.

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For motion control, Renishaw supplies laser encoders, optical linear encoders, optical angle encoders, optical rotary encoders, magnetic rotary encoders, magnetic chip encoders and magnetic linear encoders.

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Renishaw’s Raman spectroscopy products exploit the Raman effect to identify and characterise the chemistry and structure of materials. A diverse range of analytical applications include pharmaceutical, forensic science, nanotechnology, biomedical and semiconductors.

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