BTMC Series Strain Gauges for Strain in Bolt Measurement
Measures tensile strain of bolt, installed with fast-curing CN adhesive at room temperature
Key features
- 0.5% (5000×10⁻⁶ strain) Strain limit
- Operational temperature: -10~+80°C
- Special plastics backing, Cu-Ni element
- CN bonding adhesive
- Gauge resistance: 120Ω
- Gauge length: 0.5, 1, 3mm
- Hole drilled: 1.0, 1.6, 2mm
- Applicable on: Bolt M10 or larger
About the BTMC Series for Strain in Bolt Measurement
BTM/BTMC series bolt strain gauge
These gauges are used for measurement of tensile strain of bolt. They are simply inserted into pre-drilled hole in the bolt with exclusive adhesives. This method is recommendable when an ordinary strain gauges can not be mounted on the bolt surface. Accurate tensile force measurement is possible by calibrating the bolt after installing the bolt gauges.
The BTMC gauges have a tube shape sensing element, and they are installed with fast-curing CN adhesive. The installation is easily made at room temperature.
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Talk to an expertTechnical Specifications
| Specification | Value |
|---|---|
| Applicable specimen | Bolt M10 or larger |
| Backing | Special plastics |
| Bonding adhesive | A-2 (BTM), CN(BTMC) |
| Element | Cu-Ni |
| Fatigue life at room temperature | - |
| Operational temperature(°c) | -10~+80°C |
| Strain limit | 0.5% (5000×10⁻⁶ strain) |
| Temperature compensation range(°c) | - |