Research on Computational Method of Characteristic Parameters for Measuring System Based on Quasi-Static Absolute Calibration
| Autor: | Fei Shang, De Ren Kong, Ting Wei Gu, Jing Chen |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Accuracy and precision
Acoustics Bandwidth (signal processing) 0211 other engineering and technologies Linearity 02 engineering and technology General Medicine Repeatability 021001 nanoscience & nanotechnology 021105 building & construction Electronic engineering Calibration Measurement uncertainty 0210 nano-technology Pulse-width modulation Quasistatic process Mathematics |
| Zdroj: | Applied Mechanics and Materials. 865:599-604 |
| ISSN: | 1662-7482 |
| DOI: | 10.4028/www.scientific.net/amm.865.599 |
| Popis: | Quasi-static absolute calibration is using force with semi-sinusoidal pulse to calibrate pressure measuring system. The pulse width must be wide enough in order to guarantee the effective bandwidth of frequency spectrum be in the flat section of amplitude-frequency characteristics of the tested system. In this way, the result is similar to that from static calibration. The working characteristic parameters for measuring system which is gained from quasi-static calibration is different form static calibration in species, physical meanings and attainment methods. Therefore, the research is of great significance in forming quasi-static calibration system and improving measurement accuracy. The pilot scheme will be introduced in this essay. What is more, the calculation of working characteristic parameters for measuring system will be discussed by taking the force with specific pulse as example, including sensitivity when force transfer to pressure, linearity and repeatability which are used to evaluate the uncertainty of measurement. |
| Databáze: | OpenAIRE |
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