System Specifications
Resolution and Maximum Speed
Mercury 2000 systems have programmable interpolation from x4 to x256 in integer steps.
Below is a table of sample values.
Linear - 20μm grating pitch
Interpolation
x4
x10
x20
x50
Resolution
Maximum Speed*
7200mm/s
7200mm/s
7200mm/s
7200mm/s
7200mm/s
5760mm/s
2880mm/s
2300mm/s
5.000µm/count
2.000µm/count
1.000µm/count
0.400µm/count
0.250µm/count
0.200µm/count
0.100µm/count
0.080µm/count
x80
x100
x200
x250
To calculate desired linear interpolation multiplier, use the following equation
Interpolation Multiplier = Grating Pitch (20µm) / Desired Resolution (µm/count)
Rotary - 20μm grating pitch
Rotary
Glass Scale
Diameter
Fundamental
Resolution
Interpolation
Note: The range of available values is x4 to x2ꢂ0
in integer steps; example values below.
0.472” [12.00mm] 1650 CPR
0.750” [1ꢂ.05mm] 2500 CPR
x4
6,600
x100
x256
interpolated resolution (CPR)
165,000 422,400
7.85
38.0
10470
interpolated resolution (arc-sec/count)** 1ꢂ6.4
interpolated resolution (µrad/count)** ꢂ52
3.08
14.85
40ꢂ0
maximum speed* (RPM)
130ꢂ0
x4
10,000
x100
x256
interpolated resolution (CPR)
250,000 640,000
interpolated resolution (arc-sec/count)** 12ꢂ.6
interpolated resolution (µrad/count)** 628.3
5.18
25.1
6ꢂ12
2.03
ꢂ.8
2700
maximum speed* (RPM)
8640
1.250” [31.75mm] 40ꢂ6 CPR
2.250” [57.15mm] 81ꢂ2 CPR
4.250” [107.ꢂ5mm] 16384 CPR
x4
16,384
x100
x256
interpolated resolution (CPR)
40ꢂ,600 1,048,576
interpolated resolution (arc-sec/count) ** 7ꢂ.1
interpolated resolution (µrad/count)** 383.5
3.16
15.3
421ꢂ
1.24
6.0
1648
maximum speed* (RPM)
5273
x4
32,768
x100
x256
interpolated resolution (CPR)
81ꢂ,200 2,0ꢂ7,152
1.58
7.7
interpolated resolution (arc-sec/count)** 3ꢂ.6
interpolated resolution (µrad/count)** 1ꢂ1.7
0.618
3.0
824
maximum speed* (RPM)
2637
210ꢂ
x4
65,536
x100
x256
interpolated resolution (CPR)
1,638,400 4,1ꢂ4,304
interpolated resolution (arc-sec/count)** 1ꢂ.7
interpolated resolution (µrad/count)** ꢂ5.ꢂ
0.7ꢂ1
3.83
1054
0.30ꢂ
1.5
412
maximum speed* (RPM)
1318
*Maximum speed produces an encoder quadrature output of up to 28.8 million states per second.
** Resolution values shown are approximate. To calculate exact resolution values, convert from CPR (Counts Per Revolution) to the desired units.
Note: Specifications assume XOR function which is available in all standard controllers.
To calculate desired rotary interpolation multiplier, use the following equation
Interpolation Multiplier = Desired Resolution (CPR) / Fundamental Scale Resolution (CPR)
All Specifications are subject to change. All data is accurate to the best of our knowledge. MicroE Systems is not responsible for errors.
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