Quantum Devices, Inc.
Barneveld, WI 53507
Jul 12, 2007 Model JR12 provides feedback solution in applications typically using pancake resolvers with same threaded shaft and jam nut mounting. Flexible member enables tail shaft run out and TIR and mounting flange eliminates need for servo mounting clips. Output options consist of quadrature with index pulse and 3-phase commutation.

Dynapar
Gurnee, IL 60031
Jul 05, 2007 Combining optical technology and field-serviceable connectors, HSD35 hollow shaft encoder reduces large motor downtime via IP67 shaft seal, unbreakable metal or plastic code disc, and optional redundant outputs. Optional electrically isolated dual outputs enable drive and secondary equipment to operate off same encoder. Carrying overall washdown IP65/NEMA 4 rating, unit features electrically isolated shaft and is available in English and metric shaft bore sizes.

Grayhill, Inc.
La Grange, IL 60525 5914
Jun 25, 2007 Series 62AG optical encoder generates 2-bit digital output to measure magnitude and direction of shaft or knob rotation. It is terminated with 4 in. cable/connector assembly and optically coupled switching enables encoder to surpass one million rotational cycles. Featuring either 16 or 32 detent positions/rotation, it is also available with optional integrated pushbutton for scrolling items from list or menu and selecting desired function.

Renco Encoders, Inc.
Goleta, CA 93117
Feb 01, 2007 Featuring custom LED and CMOS sensor arrangement, Model RCML15 provides signals for brushless motor commutation as well as incremental position feedback in .350 in. profile design. Slide/gap mechanism facilitates installation, while ±20° rotation of encoder aligns commutation signals with motor poles. Available in various resolutions up to 4,096, unit features frequency response of 500 kHz and provides commutation for 4, 6, 8, and 10 pole brushless motors.

Haydon Switch & Instrument, Inc.
Waterbury, CT 06705 3910
Nov 14, 2006 Delivering thrusts up to 25 lb, Size 11 Actuators are available in resolutions from 0.000125-0.002 in./step. Optical incremental encoder incorporates lensed LED light source and monolithic photodetector array with signal shaping electronics to produce 2 channel bounceless TTL outputs. Operating from -40 to +100°C, encoder offers resolutions from 200-1,024 cycles/rev or 800-4,096 pulses/rev. Actuators are suited for applications requiring precise positioning and rapid motion.

Gurley Precision Instruments
Troy, NY 12181
Aug 04, 2006 Designed for precise positioning of rotary tables on machine tools, CMMs, and test equipment, Series 9480H optical encoder incorporates multiple read heads to eliminate errors and stainless steel construction for thermal resistance. Product is available with 60 mm hollow shaft and incorporates internal flexible shaft coupling. With all electronics located inside encoder, product generates up to 7,200,000 counts/rev and offers 0.00005° or 0.18 arc sec resolution.

Baumer Ltd.
Southington, CT 06489 1534
May 18, 2006 Resisting up to 10 g vibration and shock up to 100 g, Model GXM2S Optical Absolute Multi-Turn Encoder retains position in event of power loss. Steel housing measures 58 mm dia and is available with variety of bus interfaces and options. Designed with carbon fiber reinforced plastic housing, Model GI342 Incremental Encoder resists 10 g vibration and 200 g shock. Unit is 58 mm dia and suited for monitoring movement in conveying, sorting, and packaging applications.

Danaher Industrial Controls
Gurnee, IL 60031
Mar 13, 2006 Suited for washdown and intrinsically safe environments, NorthStar(TM) Series HD20, HD25, HSD23, HSD38, and DWD38 feature double-labyrinth sealed housing that enables them to achieve ratings of IP66/IP67 and NEMA 4X or NEMA 6. All are available with optional stainless steel or nickel-plated housing. Encoders are rated for mechanical shock of 50 g for 11 msec duration, and vibration of 5-2,000 Hz at 20 g. Intrinsically-safe versions are rated to 80°C.

Renishaw, Inc.
Hoffman Estates, IL 60192
Jan 26, 2006 Models RG2 (20 µm) and RG4 (40 µm) are open, non-contact linear encoders that combine cut-and-tape steel scale with side-lit filtering optics, offering immunity to dirt, dust, and contamination. Along with choice of clocked outputs to promote controller compatibility, products feature overspeed as well as low-signal alarms. Other features include RGE and RGB interfaces and readheads with integral signal condition monitoring circuit.

Agilent Technologies, Inc.
Palo Alto, CA 94303
Nov 29, 2005 Featuring integral bearing, Series AEDA-3300 is available in resolutions from 600-4,096 cycles/revolution. Units operate at frequencies up to 1 MHz and temperatures from -40 to +125°C. Outputs are 2-channel quadrature with third gated index channel. Measuring 17 mm in diameter x 24 mm high, encoders include integrated RS-422 differential line driver and are suited for applications ranging from servo and stepper motors to robotic arms and wafer handling machines.

Heidenhain Corp.
Schaumburg, IL 60173-5337
Aug 05, 2005 Suited for dynamic extended travel applications, sealed LC 182 offers constant signal quality over entire measuring length and resolution down to 0.02 µm. It incorporates single-field scanning method that utilizes single scanning window, mitigating any effects of contamination. With EnDat as well as other absolute interfaces and max traversing speed of up to 120 m/min, unit is suited for use in linear motor and high-speed machines tool applications.

Computer Optical Products, Inc.
Chatsworth, CA 91311
Jul 08, 2005 Models CP850/950-HHC incremental rotary optical encoders, offered in shafted or blind-hollow shaft versions, have absolute accuracy of ±12 arcsec typ. Products are available in 35 resolutions from 25,000-1,250,000 full quadrature A and B cycles/rev if used with edge detection from 100,000-5,000,000 ppr, respectively. Model CP-850 comes with 3/8 in. shaft, and CP-950 is available for mounting on shafts with diameters to ½ in.

Grayhill, Inc.
La Grange, IL 60525 5914
Feb 08, 2005 Series 62M Magnetic Detent Optical Encoder is available in 16 and 24 positions. Additional choices include optional pushbutton and choice of cable lengths. Switch can be customized to user-specific requirements, including terminations, shaft and bushing configurations, and resolutions.

Renishaw, Inc.
Hoffman Estates, IL 60192
Dec 10, 2004 Signum(TM) RESM Rotary Ring Encoder delivers speeds to over 3,600 rev/min and accuracy to ±0.5 arc sec, with resolution and repeatability to 0.02 arc sec. Signum(TM) software enables real-time system diagnostics via PC's USB port. IN-TRAC(TM) optical reference mark, embedded in scale track, is repeatable in both directions at operational speeds over 3,600 rev/min. Rated for temperatures up to 85°C, RESM comprises low-profile ring, SR readhead, and Si interface.

Elma Electronic Inc.
Fremont, CA 94538
Dec 07, 2004 With no mechanical contacts, E50 all-optical encoder uses IR LEDs for signal generation and proprietary magnetic system for indexing. Various shapes on coding rotor mask create different keying sequences, enabling product to output 2 unique pulse trains 90° apart. Encoder, available in 24 or 32 pulses per channel per rotation versions, is offered in switching torques of 1.5, 1.3, .6, and .45 Ncm. Encoder shaft comes in 6 mm or ¼ in. sizes.

Renishaw, Inc.
Hoffman Estates, IL 60192
Sep 14, 2004 Signum(TM) RESM comprises RESM stainless steel ring, SR readhead, and Si interface. Available in diameters from 52-413 mm, ring locks directly to machine shaft, eliminating coupling losses, oscillation, and shaft torsion. IN-TRAC(TM) optical reference mark is embedded in scale track, which is repeatable in both directions at operational speeds over 3,600 rpm and up to 85°C. Optical encoder offers ±0.5 arc-sec accuracy in addition to 0.02 arc-sec resolution and repeatability.

Grayhill, Inc.
La Grange, IL 60525 5914
Aug 17, 2004 Using optically coupled circuitry, Series 62P consists of PCB-mounted switch with minimum life expectancy of 500,000 rotational cycles, 16 detent positions, and choice of pushbutton actuation force. It does not exhibit contact bounce normally produced by mechanical contacts, eliminating need for de-bounce circuitry or software. Switch terminations, shaft and bushing configurations, and resolutions are customizable to meet user requirements.

Grayhill, Inc.
La Grange, IL 60525 5914
Jun 28, 2004 Housed in compact, ½ in. package, Series 62S features minimum life expectancy of 1 million rotational cycles; 8, 12, 16, 20, 24, and 32 detent positions; and optional integral pushbutton. Customizable components of switch include terminations, shaft, and bushing configurations. Resolutions may also be user-specified. Applications include avionics, global positioning/driver information systems, audio equipment, and medical equipment.

Gurley Precision Instruments
Troy, NY 12181
Jun 02, 2004 Models R112S and R112B optical rotary incremental encoders are available in shafted or blind-hollow shaft versions with resolutions up to 8,000 cycles/rev. Designed for light industrial applications that require high resolution in compact package, uses include x-y stages, medical devices, miniature/small instrumentation, compact motors, and actuators.

Renco Encoders, Inc.
Goleta, CA 93117
May 07, 2004 RCM15si combines brushless motor commutation pulses and incremental position feedback in one optical encoder. Index and commutation information is transmitted via RS 485 serial interface, which also allows for motor and controller setup. Available with resolutions up to 2048 lines, encoder provides commutation for 4, 6, or 8 pole brushless motors. It features slide/gap mechanism and built-in servo groove that allows ±20° rotation of encoder.