Development of a Bank of Pressure Measurement Instruments
DOI:
https://doi.org/10.62876/tekhne.v27i1.6333Keywords:
calibration, pressure gauges, transmitters, sensors, MATLABAbstract
With the aim of revitalizing and enhancing the calibration equipment used for pressure measurement at the Universidad Metropolitana, Caracas-Venezuela (UNIMET), a comprehensive process was undertaken. This process encompassed several pivotal stages. Initially, a thorough evaluation of the conditions of these instruments was conducted, as they were not operational. Subsequently, a detailed theoretical study of their operation was carried out. Following this, the pressure calibration equipment underwent a redesign process to improve its functionality and introduce new electronic capabilities. This redesign included the integration of a pressure sensor, a microcontroller, and a LED matrix display to facilitate the visualization of pressure readings. The necessary components for both calibration units were meticulously selected and assembled in accordance with the ASME standards. Additionally, a simulation using MATLAB® APP DESIGNER was developed to assess the performance of the pressure calibration unit, enhancing its educational utility. A comparative analysis of the operation of both units was performed to ensure their proper functioning. As a result of these efforts, both units were successfully integrated into the pressure calibration bench. The redesigned pressure calibration unit boasts an electronic component that displays pressure readings on LED screens with an accuracy of ±0.7 psi, along with improved fluid control. Furthermore, the unit's standard pressure gauge exhibits a margin of error of 7%. The transmitter calibration equipment, designed for calibration via air injection, can handle pressures ranging from 0 to 1030 mbar and power transmitters operating on 24 volts. These enhancements guarantee precise and reliable pressure measurements at UNIMET.
Keywords: calibration, pressure gauges, MATLAB®, transmitters, sensors.
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