High Resolution Incremental Encoders
124Resolution
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23Item1Description

1High fidelity base sinewave encoder

2Digital interpolator

CP-850-HHC high resolution encoder less cover

3Signal correction

416-bit asynchronous or synchronous serial output

High Resolution Incremental
Encoder Technology

Advantages of High
Resolution Encoders

High Resolution Encoder
Applications

Very high resolution incremental
encoders are used in many highprecision positioning and measuringsystems. One technique for achieving
high resolution is that employed byAllied Motion, which enables up to2,250,000 incremental A/B cycles perrevolution. Conventional “edgedetection” multiplication can then beemployed to raise the resolution to
9,000,000 measuring points per
revolution with repeatability of better
than one arc second.

Allied Motion’s high resolution
encoders offer benefits for many
positioning and measuring
applications:

Below are representative applications
that benefit from the advantages ofhigh resolution encoders:

The foundation of Allied Motion’shigh resolution encoding technology
is an optimized sinewave encoderwith servo-controlled light source tomaintain illumination quality level.
This is combined with an electronicinterpolator with signal correction
technology that outputs digitalincremental A and B signals, plus anindex channel.
Allied Motion’s high resolution
encoders can be used as any
incremental encoder would be, butwith a much higher resolution
potential and bandwidth (up to 4MHz).

• Extremely fine resolution per
revolution of up to 0.52 arc sec*along with excellent temperature
characteristics• High repeatability to allow“mapping” system error to achieveabsolute accuracy of better than
two arc seconds• A high resolution technology thatenables a more cost-effective
solution than alternate methods• Azimuth and elevation encoders
for 3D scanners• Spectrum analyzers for thecommunication industry• Spectrum analyzers for chemical
analysis equipment• Medical gas chromatography• High definition facial recognition
surveillance cameras• Tunable lasers for communication
system instrumentation• An encoder disc that is more robust
than those employed in typicalhigh-count encoders• Optical spectrum wavemeters• A compact encoder package
without the need for additional
interpolation electronics included
elsewhere in the system• High precision theodolites• Missile seeker heads• Optical trackers• 3D printers* ~0.13 arc sec with edge detection

North America: 1 (888) 392-5543 • Europe: +31 (78) 621 9940 • Asia: +852 2607 4038
© Allied Motion Technologies Inc.

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High Resolution Incremental Encoders
Size[mm (in)]

Resolution[cycles/r]

OutputVoltage
Supply[VDC]

Speed*[RPM]

Shaft or Bore,DxL[mm (in)]

CP-250-HHC

45.2 x 63(1.78 x 2.48)

5000 to125000Linedriver,
RS-422 levels,
4 MHz+ 5 ± 5%

1920 up to4800 RPM

Up to 10 mm(0.39)
hub• Cable and connector

CP-850-HHC“Size 25”
63.5 ∅(2.5)
solid shaft

25000 to1250000

Linedriver,
RS-422 levels,
4 MHz+ 5 ± 10%

192 up to9,600 RPM

9.52 x 22.3
(0.3848 x 0.879)• Flange, face or servo“Size 25”
63.5 ∅(2.5)
hollow shaft

25000 to1250000

CP-2650-HHC

67.3 ∅,
19 ID(2.65 ∅,0.748” ID)hollow shaft

25000 to1250000

Linedriver,
RS-422 levels,
4 MHz+ 5 ± 10%

192 up to9,600 RPM

0.748” (19 mm )hollow shaft• Cable and connector

CP-3750-HHC

95.3 ∅,
50.8 ID(3.75 ∅,2 ID)
hollow shaft

50000 up to2250000

Linedriver,
RS-422 levels,
4 MHz+ 5 ± 10%106 up to4800 RPM

2” (50.8 mm )hollow shaft• Cable and connector

CP-950-HHCOptions

mount• Rear or side connector orcable exit

Linedriver,
RS-422 levels,
4 MHz+ 5 ± 10%

192 up to9,600 RPM

12.7 x 22(0.5 x 0.866)• Spring mount (shown)• Rear or side connector orcable exit

• Up to 0.5” hollow shaft ID* Speed depends upon resolution: Nmax =2.4 E8 ÷ LinecountNorth America: 1 (888) 392-5543 • Europe: +31 (78) 621 9940 • Asia: +852 2607 4038
© Allied Motion Technologies Inc.

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