What had to be solved
The task was to prepare a measurement channel for fast strain-gauge signals where ordinary low-speed bridge electronics were not enough.
Projects / Measurements, sensors and data acquisition
500 kHz strain-gauge bridge amplifier
High-speed amplifier for strain-gauge bridges with analog signal conditioning and a bandwidth suitable for dynamic tests.
What the project reached
A specialized analog channel was developed for dynamic strain-gauge measurements and bench use.
Project materials
Photos and working materials
Engineering context
Important constraints
The measurement channel had to preserve fast signal changes.
Noise, input matching and stable bridge excitation were important.
The output had to be convenient for laboratory recording equipment.
Work done
What was included
Analog amplifier architecture.
Bridge excitation and signal conditioning.
PCB layout with attention to low-noise analog routing.
Bench testing and adjustment.
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