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 0.1'' 2.38'' 1.10'' 0.39'' 0.39'' 0.20''
SG5 0.2'' 2.38'' 1.10'' 0.39'' 0.39'' 0.20''
SG10 0.4'' 2.87'' 1.89'' 0.59'' 0.59'' 0.24''
SG20 0.8'' (Linearity specification valid over 90% Full Scale) 2.91'' 2.91'' 1.97'' - 0.24''

Specification
Excitation/supply (acceptable)15V ±10% Operating temperature range (maximum) SG2.5 = 185°F
SG5 = 185°F
SG10 = 185°F
SG20 = 158°F
Output0V to 3V (±10) Output common floats at half the supply voltage Relative humidity 0 to 85%% (non-condensing)
Output ripple0.1% F.S. peak-to-peak. (Typical) Vibration tolerance 25g (0 to 2 kHz)
Linearity error±0.5 Shock tolerance 120g (excluding ceramic face)
Operating temperature range (minimum)SG2.5 = -13°F
SG5 = -13°F
SG10 = -13°F
SG20 = 5°F		 Electrical termination 6.6ft (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/us/sg.htm 20070424
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.
 

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
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