Complete Catalogue - SOLARTRON METROLOGY - (Version JPG) - Page n° 39 - PDF Catalogue | Technical Documentation

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Specification 37 —=

1 Gauge Accuracy

The accuracy of the LVDT and Half Bridge Flexure Gauge is quoted as % of reading or um whichever is greater. The accuracy of the Digital Flexure Gauge is quoted as [(resolution) + (accuracy %) x D] where D is the distance from the setting master. (Please refer to the Glossary for definitions)

2 LVDT and Half Bridge Flexure Gauge Performance

Accuracy, sensitivity, energising current and phase shift are valid for the following calibration conditions: LVDT gauge calibrated at 3 V, 5 kHz frequency into a 10 kn load.

Half Bridge gauge calibrated at 3 V, 10 kHz frequency into a 2 kn load. The gauge will operate with energising voltages in the range 1 V to 10 V and with frequencies in the range 2 kHz to 20 kHz but the performance is not specified. Unplugged (free load) and other specifications are available on request

3 Viton is a trademark of DuPont Dow Elastomers.

4 Cables

All gauges are supplied with 2 m of PUR cable as standard.

Other lengths and options are available on request.

5 Digital Flexure Gauge Termination

Digital Flexure Gauges are terminated with Solartron's Probe Interface Electronics (PIE) module. Please refer to the Orbit Network for details on this module and methods of integration for Digital Flexure Gauges.


Analogue		Digital
LVDT	H/B	Digital
AU/1/S	AU/1/SH	DU/2/S
AU/1/R	AU/1/RH	DU/2/R
AU/1/P	AU/1/PH	DU/2/P
AUR/1/S	AUR/1/SH	DUR/2/S
AUR/1/R	AUR/1/RH	DUR/2/R
AUR/1/P	AUR/1/PH	DUR/2/P

±1		2
2.5 1
0.5, 1um		^0.1

Product type

Axial cable outlet:

Forward Spring

Reverse Spring Reverse Spring Pneumatic

Radial cable outlet:

Forward Spring

Reverse Spring Reverse Spring Pneumatic

Measurement

Measurement Range (mm)

Maximum Mechanical travel (mm)

Accuracy¹ (% of reading or um)

Resolution

Analogue: Dependent on electronics Digital: User selectable to <0.05um

Repeatability (on-axis at 0.7N tip force) (um)

0.1

Null Position

Adjustable

Tip Force (Spring Actuation) ±20% (N)

1.5 @ mid position


Tip Force (Pneumatic Actuation) ±20% (N)	1 @ mid position @ 2 Bar
Temperature Coefficient %FS/°C	0.01
Mechanical
Mass (less tool holder) (g)	120
Mass of tool holder (g)	12
Electrical Interface^2,5
Sensitivity (mV/V/mm)	200	73.5	-
Energising Current	3 mA/V@5kHz	1.2mA/V@ 10kHz	55 mA @ 5 VDC


Environmental
	LVDT and H/B	Digital
Storage Temp. (°C)	-40 to +85	-20 to +70
Operating Temp. (°C)	+5 to +85	+5 to +65
IP rating Flexure Gauge	IP65	IP65
Electronics	-	IP43

Operating Pressure Range

Materials

Pneumatic Operation:

1 to 3 Bar relative

Frame

Stainless Steel

Gaiter³

Viton®

To maximise working life of the probe head when pneumatic actuation is chosen, the air supply should be both clean and dry for continual reliable operation. Maximum relative humidity of 60% and filtered to better than 5um particle size.

Cable⁴

PUR

Life

Shock: To maintain best performance the Flexure Gauge should be protected from excessive shock loads and dropping

Better than 25 million measuring cycles (dependant on application)

Air off

Air on

Complete Catalogue - SOLARTRON METROLOGY - #39

Network controller, Encoder, Display, Touch probe, SPC software