Strain gauge BCM's
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General Information
The modules are designed to complement one or two strain gauges (SG) to a full bridge (see Figure 1). The modules contains two (BCM2) or three (BCM4) precision thermostable resistors and pads for convenient soldering of wires from strain gauges and measuring equipment. The resistors are protected from environmental influences by filling with compound. There is double-sided foam tape on the back of the module for installing the module in a convenient place. The foamed base of the tape provides insulation of the module from possible deformation of the part at the place of installation of the module.
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| Nominal resistance of strain gauge, Ohm | 120; 350 |
| Tolerance of resistance of resistor R3, % | 0.025 |
|
Resistance mismatch of resistors R1 and R2, % |
0.02 |
|
Temperature coefficient of resistance mismatch of resistors R1 and R2, ppm/°C (με/°C)*1 |
0.8 (0.40) |
|
Temperature coefficient of resistance R3, ppm/°C (με/°C) *1 |
1.9 (0.95) |
|
Highest excitation voltage, V |
10 for BCM*-120-*** 16 for BCM*-350-*** |
| Method of connecting wires to the module | Soldering |
| Operating temperature, °C | -20 ... 120 |
| ESD protection (Human Body Model), V | 1000 |
| Overall dimensions (including foam tape), mm | 32 x 18.5 x 6 |
| Weight, g | 5 |
