Analogue Flexure |
Measurement Performance |
AU/0.5 |
AU/1.0 |
Mechanical Travel (mm) |
1.7 |
2.5 |
Measurement Range (mm) |
1.0 |
2.0 |
Repeatability1 |
<0.1 µm |
Resolution (µm) - User Selectable |
<0.1 µm |
Accuracy1 (% of reading) |
0.1 |
Tip Force (Horizontal Attitude) ± 20% - Spring Push |
1.5 N (at mid position) |
Tip Force (Horizontal Attitude) ± 20% - Pneumatic Push |
1.0 N (at mid position, at 2 bar) |
Temperature Coefficient (FS/°C) |
<0.01% |
Over Travel (mm) |
0.1 |
1See Zonal Repeatability Specification for off-centre repeatability. |
2Accuracy 0.1 µm or % reading, whichever greater. Accuracy assumes Tip Holder is <20 mm and mounted on centre, spring operation with 1.5 N tip force. |
Mechanical Specification |
Flexure Material |
Aluminium and Steel |
Mass (g) - including Tool Holder, 20 mm Tip Holder and Ball Tip (excluding PIE/Cable) |
<60 |
<70 |
Mass (g) of Tool Holder |
12 |
Gaiter Material |
High Grade Polymer |
Cable |
2 m PUR |
Operating Life (dependent on application) |
>20 million cycles |
Pneumatic Operating Pressure3 |
1.5 bar to 2.5 bar relative |
3For best gauging results it is recommended that the flexure is operated so that the spring provides the gauging force and the pneumatic cylinder is used to retract the flexure. |
Environmental Specification |
IP Rating |
IP 65 (Flexure only) |
Operating Temperature (°C) |
+5 to +85 |
Storage Temperature (°C) |
-20 to +70 |
|
Electrical Specification |
LVDT |
Half Bridge |
Energising Voltage |
1 to 10 V rms |
Energising Frequency (kHz) |
2 to 20 |
Energising Current |
3 mA/V at 5 kHz
1.2 mA/V at 10 kHz |
Calibration Load (kΩ) |
10 |
2 |
Standard Calibration Parameter |
200 mV/V/mm |
73.5 mV/V/mm |
|
± 0.5% at 5 kHz |
± 0.5% at 10 kHz |
|
3 V rms |
3 V rms |