Analogue Flexure - Specification

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