Uploaded February 2021 | Updated September 2026, 6 hours ago
Technical advantages of high resistance 5 kΩ strain gages:
1. Low to no self-heating on plastics and composites.
2. Allows for higher excitation for better signal to noise ratio (compare to 120 ohm)
3. Gage factor desensitization effectively eliminated (compare to 120 ohm)
4. No measurable lead-wire influence due to temperature changes, even with a 2 wire system (compare to 120 ohm)
5. Gage factor variation with temp is negative which can compensate for material softening at higher temperatures (more of a theoretical discussion)
6. Substantially longer battery life
The Micro-Measurements Advanced Sensors Technology product portfolio includes linear, shear, bi-axial and diaphragm (circular and linear pattern) gages, arranged as individual, half-bridge and full-bridge configurations, in resistance values from 350 Ω, with added flexibility in mounting options. These gages are a preferred choice when low power consumption is crucial, as in battery-powered devices such as electronic torque wrenches, pocket (jewelry) scales, and bicycle and motorcycle sensing and testing equipment; and for applications such as wireless telemetry on rotating components. In addition, higher bridge resistance allows for increased bridge excitation producing more output signal without the destabilizing effects of self-heating. The higher output without additional amplification improves its signal to noise ratio (SNR).
Micro-Measurements: micro-measurements.com
Advanced Sensors Technology: micro-measurements.com/advanced-sensors-technology
StrainTalks™ seminar: straintalks.com
StrainBond™? micro-measurements.com/bonding
StrainBlog: strainblog.com
Technical advantages of high resistance 5 kΩ strain gages:
1. Low to no self-heating on plastics and composites.
2. Allows for higher excitation for better signal to noise ratio (compare to 120 ohm)
3. Gage factor desensitization effectively eliminated (compare to 120 ohm)
4. No measurable lead-wire influence due to temperature changes, even with a 2 wire system (compare to 120 ohm)
5. Gage factor variation with temp is negative which can compensate for material softening at higher temperatures (more of a theoretical discussion)
6. Substantially longer battery life
The Micro-Measurements Advanced Sensors Technology product portfolio includes linear, shear, bi-axial and diaphragm (circular and linear pattern) gages, arranged as individual, half-bridge and full-bridge configurations, in resistance values from 350 Ω, with added flexibility in mounting options. These gages are a preferred choice when low power consumption is crucial, as in battery-powered devices such as electronic torque wrenches, pocket (jewelry) scales, and bicycle and motorcycle sensing and testing equipment; and for applications such as wireless telemetry on rotating components. In addition, higher bridge resistance allows for increased bridge excitation producing more output signal without the destabilizing effects of self-heating. The higher output without additional amplification improves its signal to noise ratio (SNR).
Micro-Measurements: micro-measurements.com
Advanced Sensors Technology: micro-measurements.com/advanced-sensors-technology
StrainTalks™ seminar: straintalks.com
StrainBond™? micro-measurements.com/bonding
StrainBlog: strainblog.com
