A device and method for calibrating step response characteristics of a resistance strain gauge
High-speed electronic switches and step attenuators generate high anti-interference step strain waveforms of any amplitude, and use software equivalent sampling technology to achieve efficient step response calibration of resistance strain meter, solving the problems of waveform distortion and uncontrollable amplitude under small and medium-sized step amplitudes in the prior art.
Patent Information
- Application Number
- CN202210064879.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2022-01-20
- Publication Date
- 2025-03-28
- Estimated Expiration
- 2042-01-20
AI Technical Summary
In the case of small step amplitude, the step waveform overshoot oscillation distortion is large, and it is impossible to perform normal measurement and calibration. At the same time, the step amplitude is limited by the circuit principle structure and cannot be controlled arbitrarily.
The stable and reliable high-speed electronic switch generates periodic high-impact and simulated large-strain original resistance step waveforms, and the strain waveform is stepped through the step attenuator to generate an analog step strain excitation response signal of any amplitude. At the same time, software equivalent sampling is used to achieve equivalent high-speed sampling at low sampling rates, and an effective step response characteristic curve is obtained.
It realizes high-impairment and arbitrarily controllable amplitude step response calibration of resistance strain meter, solves the problem of waveform distortion under small step amplitude, and effectively excites and calibrates various resistance strain meter step response characteristics within a wider frequency range and wider amplitude range.