4940 - Stretch sensor

For measurement of small movements

Stretch materials up to 30% without permanently deforming.
On both sides copper clips for mounting the sensor on the product with little resistance loss.

Precise movement measuring by changing resistance in the material
Two types of material, conductive fabric and conductive rubber.

Length sensor can be specified on request.
The sensor doesn’t have any sharp edges so it can be used on skin.



Benefits

  • Can measure small movements
  • Stretch material up to 30% without deformation
  • Different materials for different measuring
  • Every dimension possible

Applications

  • Movement of limbs
  • Medical applications
Stretch sensor
Stretch sensor
Stretch sensor
Stretch sensor

Specifications material

Conductive fabric

Property Test value
Silver-gray color Very unique
Surface resistivity <0.5 Ohm-sq. (unstretched)
Shielding Effect 35+ dB: 1-10 GHz
Temperature range -30 °C to 90 °C
Thickness 0,40mm
Weight 4.3 oz/yd² 145 Gr./0.84m²
Stretch ~100% x length; ~65% x width direction
Permanent deformation After ± 30% stretch
Standard length 135 cm (52 inch) wide

Conductive silicone

Data Typical Values
Shore A (40-50 range) 45
Tensile psi (150 minimum) 185 psi
Elongation % (300 minimum) 350%
Compression set % (30 max.) 21% (70 hours at 100°C)
Specific Gravity (1.75-2.25) 2.08
Volume Resistivity ohm / cm (0.004 max.) 002 ohm /cm
Thermal Stability Range -60°C – 220°C

Stretch diagram

Stretch sensor - fabric length

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Grafiek: Stretch sensor - fabric length (65)
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Please note : These values are measured under laboratory conditions. Results may vary in other situations; please read our Guarantee.


Stretch sensor - fabric width

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Grafiek: Stretch sensor - fabric width (63)
Grafiek legenda

Please note : These values are measured under laboratory conditions. Results may vary in other situations; please read our Guarantee.


Stretching sensor - Sylicon length

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Grafiek: Stretching sensor - Sylicon length (66)
Grafiek legenda

Please note : These values are measured under laboratory conditions. Results may vary in other situations; please read our Guarantee.


Options

Sensor rubber
Sensor fabric

Dimensions

Standard width
4940-R Rubber 8mm
4940-S Stretch fabric 24,5mm

* Other dimensions on request


Personalisation

Custom sizes and shapes can be produced on request and according to your drawing. Send your drawing to request a quote for a custom shape to [email protected] .

 

 

Would you like to...

To get a quotation for Stretch sensor within 24 hours fill in the form below.

Select an option:
R : Rubber
S : Stretch fabric
* Note: The red blocks are required