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Analogue Flexure Gauge - AU

Flexures are ideal for very high volume and high precision applications such as bearing component gauging. They are often the best solution for measuring moving material, such as roughness testing.

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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 Repeatablility Specification for off-center repeatability.
²Accuracy 0.1 µm or % reading, whichever greater. Accuracy assumes Tip Holder is <20 mm and mounted on center, 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

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Analogue Flexure Gauge - AU

Analogue Flexure - Specification

Analogue Flexure Accessories