sensor strain gauge

It almost always comes down to the surface material. Weld-on sensors go directly onto steel structures—piles, beams, pipes. You spot-weld the end blocks and the sensor sits flush against the metal. Embedment gauges are built into concrete or grout; they have flanges or deformed rebar bodies so the concrete grips them. If you’re monitoring strain in a cast-in-place pile, you’ll need embedment. If you’re measuring stress in a steel strut, go with weld-on.

Most of our sensors output a full or half Wheatstone bridge, so any datalogger that accepts bridge inputs works—like Campbell Scientific or Geokon readouts. We also bundle our sensors with a compact wireless node that does the bridge completion and transmits via LoRa or 4G. You’ll get microstrain directly, no manual calculations.

Yes. Temperature compensation is standard from -20°C to +80°C, but if you’re monitoring a freezer warehouse or a desert bridge, we can shift the calibration window. We’ll run it through a thermal chamber and provide the correction coefficients.

The stainless steel body and epoxy potting hold up well. We have sensors still reading stable after 10 years on a coastal bridge in Malaysia—only the cable jacket needed replacement from UV damage. For long-term projects, we recommend a secondary waterproofing wrap at the cable exit as cheap insurance.

We keep the 150mm standard range sensors in stock—both weld-on and embedment. You can order a few pieces for a pilot project. Large quantities or custom ranges get manufactured on demand, usually with a 2-week lead time.