System Specifications
Resolution and Maximum Speed
Mercury 1500P systems have factory set interpolation: x4, x8, x20, x40. Below is the table of available resolutions.
Linear - 20μm grating pitch
Interpolation
x4
x8
x20
x40
Resolution
Maximum Speed
7200mm/s
7200mm/s
7200mm/s
7200mm/s
5.000µm/count
2.500µm/count
1.000µm/count
0.500µm/count
Rotary - 20μm grating pitch
Rotary
Glass Scale
Diameter
Fundamental
Resolution
Interpolation
Below is a table of the available resolutions.
0.472” [12.00mm] 1650 CPR
0.750” [1ꢂ.05mm] 2500 CPR
x4
6,600
x8
13,200
ꢂ8.2
476
130ꢂ0
x20
33,000
3ꢂ.2
1ꢂ0.3
130ꢂ0
x40
interpolated resolution (CPR)
66,000
1ꢂ.64
ꢂ5.2
interpolated resolution (arc-sec/count)* 1ꢂ6.4
interpolated resolution (µrad/count)*
maximum speed (RPM)
ꢂ52
130ꢂ0
130ꢂ0
x4
x8
x20
50,000
25.ꢂ
125.6
8640
x40
interpolated resolution (CPR)
10,000 20,000
100,000
12.ꢂ6
62.8
interpolated resolution (arc-sec/count)* 12ꢂ.6
64.8
314
8640
interpolated resolution (µrad/count)*
maximum speed (RPM)
628
8640
8640
1.250” [31.75mm] 40ꢂ6 CPR
2.250” [57.15mm] 81ꢂ2 CPR
4.250” [107.ꢂ5mm] 16384 CPR
x4
x8
x20
x40
163,840
7.ꢂ1
38.3
5273
interpolated resolution (CPR)
16,384 32,768
81,ꢂ20
15.82
76.6
interpolated resolution (arc-sec/count)* 7ꢂ.1
3ꢂ.6
1ꢂ1.7
5273
interpolated resolution (µrad/count)*
maximum speed (RPM)
383
5273
5273
x4
x8
x20
163,840
7.ꢂ2
38.3
2637
x40
327,680
3.ꢂ6
1ꢂ.17
2637
interpolated resolution (CPR)
32,768 65,536
interpolated resolution (arc-sec/count)* 3ꢂ.6
1ꢂ.78
ꢂ5.8
2637
interpolated resolution (µrad/count)*
maximum speed (RPM)
1ꢂ1.7
2637
x4
x8
x20
x40
interpolated resolution (CPR)
65,536 131,072
327,680 655,360
interpolated resolution (arc-sec/count)* 1ꢂ.78
ꢂ.8ꢂ
47.ꢂ
1318
3.ꢂ6
1ꢂ.16
1318
1.ꢂ78
ꢂ.58
1318
interpolated resolution (µrad/count)*
maximum speed (RPM)
ꢂ5.8
1318
* 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.
All Specifications are subject to change. All data is accurate to the best of our knowledge. MicroE Systems is not responsible for errors.
Page 3 of 6