G Series
Galvanometers
The new G-Series Galvanometer features four different sizes, designed to deliver excellent performance in a wide range of applications. Each galvanometer is equipped with an internally designed optical position sensor, ensuring high dynamic performance, accuracy, precision, reliability, and minimal thermal drift.
Rated excursion rotor (°mech.)
40
Note
42° mechanically limited
Rotor inertia (g•cm²)
55
Note
± 10%
Recommended aperture size (mm)
40 ÷ 100
Torque constant (mN•m/A)
103
Note
± 10%
Back EMF (mV/(rad/s))
103
Note
± 10%
Coil resistance (Ohm)
2
Note
± 10%
Coil inductance (μH)
1.1
Note
± 10%
Thermal resistance coil to case (°K/W)
0.3
Note
Max
RMS Coil current (A)
10
Note
Max Stator’s temperature 60°C
RMS Power (W)
200
Note
Max Stator’s temperature 60°C
Peak Coil current (A)
35
Note
10 ms @ 20 Hz
Weight (g)
1400
Linearity (%)
99.9
99.8
Note
Min over +/-15° mecc excursion
Min over +/-20° mecc excursion
Scale drift (ppm/K)
+/-50
Note
Max, over 20 to 60°C case temperature
Zero drift (μrad/°K)
+/-15
Note
Max, over 20 to 60°C case temperature
Long term drift (% f.s./year)
0.1
Repeatibility (μrad)
15
Note
Short term, no temperature change
Output signal, differential mode (μA/°mech)
6*
Output signal, common mode (μA)
150
Note
Recommended
Sensor power requirements (V ; mA)
4.5-7
15-30
Rated excursion rotor (°mech.)
40
Note
42° mechanically limited
Rotor inertia (g•cm²)
9
Note
± 10%
Recommended aperture size (mm)
15 ÷ 40
Torque constant (mN•m/A)
48
Note
± 10%
Back EMF (mV/(rad/s))
48
Note
± 10%
Coil resistance (Ohm)
2.8
Note
± 10%
Coil inductance (μH)
650
Note
± 10%
Thermal resistance coil to case (°K/W)
0.65
Note
Max
RMS Coil current (A)
6
Note
Max Stator’s temperature 60°C
RMS Power (W)
90
Note
Max Stator’s temperature 60°C
Peak Coil current (A)
20
Note
10 ms @ 20 Hz
Weight (g)
330
Linearity (%)
99.95
99.9
Note
Min over +/-15° mecc excursion
Min over +/-20° mecc excursion
Scale drift (ppm/K)
+10/-35
Note
Max, over 20 to 60°C case temperature
Zero drift (μrad/°K)
±8
Note
Max, over 20 to 60°C case temperature
Long term drift (% f.s./year)
0.05
Repeatibility (μrad)
10
Note
Short term, no temperature change
Output signal, differential mode (μA/°mech)
21.5
Output signal, common mode (μA)
280
Note
Recommended
Sensor power requirements (V ; mA)
20
25
Rated excursion rotor (°mech.)
40
Note
42° mechanically limited
Rotor inertia (g•cm²)
1.9
Note
± 10%
Recommended aperture size (mm)
8 ÷ 30
Torque constant (mN•m/A)
17.2
Note
± 10%
Back EMF (mV/(rad/s))
17.2
Note
± 10%
Coil resistance (Ohm)
1.6
Note
± 10%
Coil inductance (μH)
270
Note
± 10%
Thermal resistance coil to case (°K/W)
0.9
Note
Max
RMS Coil current (A)
5
Note
Max Stator’s temperature 60°C
RMS Power (W)
50
Note
Max Stator’s temperature 60°C
Peak Coil current (A)
20
Note
10 ms @ 20 Hz
Weight (g)
210
Linearity (%)
99.9
99.8
Note
Min over +/-15° mecc excursion
Min over +/-20° mecc excursion
Scale drift (ppm/K)
+/-50
Note
Max, over 20 to 60°C case temperature
Zero drift (μrad/°K)
+/-15
Note
Max, over 20 to 60°C case temperature
Long term drift (% f.s./year)
0.1
Repeatibility (μrad)
15
Note
Short term, no temperature change
Output signal, differential mode (μA/°mech)
6*
Output signal, common mode (μA)
150
Note
Recommended
Sensor power requirements (V ; mA)
4.5-7
15-30
Rated excursion rotor (°mech.)
40
Note
42° mechanically limited
Rotor inertia (g•cm²)
0.015
Note
± 10%
Recommended aperture size (mm)
3 ÷ 8
Torque constant (mN•m/A)
2.2
Note
± 10%
Back EMF (mV/(rad/s))
2.2
Note
± 10%
Coil resistance (Ohm)
3.6
Note
± 10%
Coil inductance (μH)
100
Note
± 10%
Thermal resistance coil to case (°K/W)
4
Note
Max
RMS Coil current (A)
1.6
Note
Max Stator’s temperature 60°C
RMS Power (W)
10
Note
Max Stator’s temperature 60°C
Peak Coil current (A)
5
Note
10 ms @ 20 Hz
Weight (g)
27
Linearity (%)
99.9
99.8
Note
Min over +/-15° mecc excursion
Min over +/-20° mecc excursion
Scale drift (ppm/K)
+/-50
Note
Max, over 20 to 60°C case temperature
Zero drift (μrad/°K)
+/-15
Note
Max, over 20 to 60°C case temperature
Long term drift (% f.s./year)
0.1
Repeatibility (μrad)
15
Note
Short term, no temperature change
Output signal, differential mode (μA/°mech)
6
Output signal, common mode (μA)
150
Note
Recommended
Sensor power requirements (V ; mA)
4.5-7
15-30
Optical aperture (mm)
24
Linearity (%)
99.9% min
over 20mm
Scale drift (ppm/K)
100 max
Zero drift (μrad/°K)
10 max
Long term drift (% f.s./year)
200 max
Repeatibility (μrad)
5 max
Moving trolley excursion (mm)
20 Typical / 21 Max
Moving lens housing
Ø 1” * 4mm thickness Max
Moving trolley speed (mm/s)
1400 Max
Moving trolley acceleration (G)
25 Max
Setting time (ms)
3.6 @ Dx = 2mm Max
15 @ Dx = 20mm Max
Weight (g)
510 ± 10%
Moving trolley excursion (mm)
20 Typical / 21 Max
Moving lens housing
Ø ¾” * 3mm thickness Max
Optical aperture (mm)
18
Moving trolley mass (g)
20 ± 10% (without lens)
Moving trolley speed (mm/s)
1600 Max
Moving trolley acceleration (G)
35 Max
Setting time (ms)
3.4 @ Dx = 2mm Max
12 @ Dx = 20mm Max
Static friction (N)
0.08 Max
Coupling Constant (N/A)
2 ± 20%
Coil current (A)
1.6 RMS Max
8 Peak (10 ms @ 10 Hz) Max
Coil Resistance (Ohm)
2.8 ± 10%
Coil inductance (μH)
800 ± 10%
Back EMF Voltage (mV/ (mm*s))
2.3 ± 10%
Thermal Resistance, coil to stator (K/W)
9 Max
Coil Temperature (°C)
120 Max
Scanner Weight (g)
460 ± 10%
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