Even placing a proper strain gauge on the PCB had limitations. His new design uses a bridge design to make the change in the gauges usefully large. You can see a video of the project below.

The second generation of the G1350 is based on K-alloy, with its extensive areas of application, representing a vital member in the family of strain gage alloys for PCB testing.

I concluded that the thermal expansion of the fiberglass PCB was stressing the “strain gauge” gain resistor and causing the amplifier gain to change with temperature. After I put in a new resistor ...

A strain gauge is wired into one leg ( or more ) of a Wheatstone bridge excited by a precision voltage. The bridge imbalance is proportional to the strain of the material being measured.

HBM has announced a new RF9 miniature rosette strain gauge, which is suitable for measurements on printed circuit boards (PCB), small components or applications with limited space. Compact in size, ...

Micro-Measurements, a Vishay Precision Group (VPG) brand, recently launched three new small-scale strain gages designed to meet the growing demand for precise, stable, and reliable stress analysis ...

The 4709A strain gauge amplifier from Kistler features a 24-bit ADC resolution and an 8 kSps sampling rate, enabling it to ...

Standard strain gauges have relatively low sensitivity and strain range, with gauge factors (the ratio of relative change in electrical resistance to the associated mechanical strain) typically ...