STP series
Key features
STP series strain gauges are designed for dynamic measurements at temperatures up to +1150°C.
Sensitive grid of the gage is made of 14…30 um diameter platinumtungsten wire. Strain gage is fixed with the temporary carrier fiberglass-reinforced PTFE.
Lead wires are made of 0.07 mm platinum-based alloy. Lead wire can be made in round or flat ribbon variants. Standard diameter of the lead wires is 0.07 mm and standard length of the lead wires is 50 mm; both parameters can be optionally adjusted on request.
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Characteristics
| Specifications | Value |
| Sensitive grid material | Platinum-tungsten |
| Possible number of sensitive elements | 1 |
| Base length, mm | 1.6-5.5 (.063"-.0217") |
| Gage width, mm | 1.6-3.2 (.063"-.126") |
| Resistance, Ohm | 120 |
| Resistance deviation in batch, not more than | ±1% or ±3% |
| Lead wire material | platinum-based alloy |
| Lead wire diameter, mm | 0.07-0.15 (.0028"-.0059") |
| Lead wire type | Ribbon or round |
| Lead wire length, mm | 50-300 (1.97"-11.81") |
| Temporary carrier | Fiberglass-reinforced PTFE |
| Average gage factor at 20°C | 3.5 |
| Fatigue life at ±650 ppm at 20°C, cycles | 106 |
| Bonding Methods | Ceramic Cement or Alumina flame spray |
| Max. working temperature | 1150°C (+2102°F) |
| Type of measurements | Dynamic |
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