Strain gauge (Two-channel tensometric measuring instrument) is a device intended for measurement of deformation of resistance strain gauges which can be caused by change of force, loading, twisting moment, pressure, weight, vibration and other mechanical and physical parameters.
Strain gauge can be used both independently and together with A-Line 32D acoustic emission (AE) system by means of signal injection into the relative system parametric input.
| General parameters | |
| Number of measuring inputs | 2 |
| Mode | sensor/bridge |
| Resistance of the strain gauge: - sensor mode - bridge mode |
120 Ohm ≥120 Ohm |
| Input range | ±10, 20, 40, 80 mV |
| ADC resolution | 16 bit |
| Filter cut-off frequency (at -3 dB) | 2 Hz |
| Number of outputs | 1 |
| Output range | ±4096 mV |
| Gain factor | 50, 100, 200, 400 |
| Preset measurement delay time | 0 ÷ 900 s |
| Interval delay time change | 10 s |
| Adjustable measurement type: - minutes - hours | 1 ÷ 59 1 ÷ 100 |
| Display type | LCD |
| Working temperature range | -20 ÷ +50 °C |
| Power supply | Krona battery or adapter for 9 V |
| Dimensions | 155×80×30 mm |
| Weight | 300 g |
Purpose
- Examination of the stress-strain state of the object under test;
- Measurement of actual values of pressure in the material of the object under test;
- Automation of the process of identification of the kind of defect according to the acoustic emission testing.
