Sensagap Capacitive Displacement Transducer

Internal amplifier
High cycle life
Non-contact



These transducers are for displacement / position measurement. They accurately measure the distance of suitable target from their front face.

They use a capacitive measurement principle so there is not contact with the sensing element. These units also have built-in signal conditioning so they are powered from dc and give a dc output.

A good target has a high relative permittivity and/or low resistivity.

   Sensagap technical manual (126kb)

Maximum measurement gap
Typical target
Type Maximum measurement gap L W Minimum target area T
B H
SG2.5 2.5mm 60.5mm 28.0mm 10.0mm 10.0mm 5.0mm
SG5 5.0mm 60.5mm 28.0mm 10.0mm 10.0mm 5.0mm
SG10 10.0mm 73.0mm 48.0mm 15.0mm 15.0mm 6.0mm
SG20 20.0mm (Linearity specification valid over 90% Full Scale) 74.0mm 74.0mm 50.0mm - 6.0mm

Specification

Excitation/supply (acceptable)15V ±10%Operating temperature range (maximum)SG2.5 = 85°C
SG5 = 85°C
SG10 = 85°C
SG20 = 70°C
Output0V to 3V (±10) Output common floats at half the supply voltageRelative humidity0 to 85%% (non-condensing)
Output ripple0.1% F.S. peak-to-peak. (Typical)Vibration tolerance25g (0 to 2 kHz)
Linearity error±0.5Shock tolerance120g (excluding ceramic face)
Operating temperature range (minimum)SG2.5 = -25°C
SG5 = -25°C
SG10 = -25°C
SG20 = -15°C		Electrical termination2m (integral cable)
Frequency response
Amplitude (% F.S.) Electrical output bandwidth (Hz) Phase shift (degrees)
100 80 6
80 100 15
60 250 20
40 300 24
20 500 45
10 1000 90

Options and accessories

Electronics

All dimensions and specifications are nominal.www.rdpe.com/ex/sg.htm20060906
Due to our policy of on-going development, specifications may change without notice. Any modification may affect some or all of the specifications for our equipment.
 
USA & Canada
RDP Electrosense
2216 Pottstown Pike
Pottstown, PA 19465
USA
Tel: 610-469-0850
Tel: 800-334-5838
Fax: 610-469-0852
Email: info@rdpe.com
 Rest of the world
RDP Electronics Ltd
Grove Street, Heath Town
Wolverhampton, West Midlands, WV10 0PY
United Kingdom

Tel: +44 1902 457512
Fax: +44 1902 452000
Email: sales@rdpe.com
URL: www.rdpe.com

-