Product description ............................................... 3 Part numbering ............................................... 4 Features and options ............................................... 5 Specifications ............................................... 6 Product dimensions ............................................... 7 Electrical connections ............................................... 7 Mechanical connection ...............................................
The LEAP Technology Strain Gauge is an elastomeric capacitive strain gauge capable of far exceeding the measurable strain of other gauges. Unlike other strain gauges, these are made from silicone elastomer, allowing them to be glued or embedded onto or into a large variety of substrates and host materials. They are elastic in all directions. The capacitive nature of these strain gauges ensures high repeatability even in environmentally challenging applications.
꙱꙱꙱꙱꙱꙱꙱꙱꙱ Signal output 21 = 0-5V Cable entry C = Flying lead Cable length 005 = 0.5m 01 = 1m 03 = 3m Electronics B = With electronics Cable entry U = Micro USB Cable length 005 = 0.
Customisation and options: • User configurable capacitance range represented by the 0-5V signal • Other shapes and sizes • Unidirectional sensing • High temperature version (up to 200°C) • Material samples for adhesion testing
Mechanical Maximum area strain Operating temperature Protection rating Fatigue life Weight (not including cable) 30% 0 to 70°C Equivalent to IP67 106 cycles @ 80% strain <2g Electrical (SG-B only) Sensitivity Temperature factor 0.133V / % area strain -0.15% / °C Output signal 0 to 5V Update rate 1000Hz Supply voltage Power consumption 2.25 to 5.25 V 0.
SG-B SG-C All dimensions in mm and nominal SG-B • 2.5 to 5.25V (supply) - White • GND (supply) - Yellow • AGND (signal) - Blue • AOUT (signal) - Green • Screen - Uninsulated SG-C • Micro USB for connection to LEAP WE series measurement electronics Note: Signal cable length and environment can affect signal quality. We advise experimentation.
The sensitive zone of the sensor is designed to be glued to or embedded into the deforming substrate. LEAP recommend testing the substrate adhesion/encapsulation prior to using the sensors. • Most thermoplastics, we recommend testing Wacker G790 primer together with Wacker E43 adhesive. • Natural rubber-based substrates, we recommend just Wacker E43. • For textiles, the application of adhesive is just as important to consider, as the adhesive it’s self in order to get best results.
