During calibration of a pressure transducer, what data are recorded at each reference pressure point?

• A. Output signal corresponding to the reference pressure.
• B. Temperature readings only.
• C. Noise amplitude only.
• D. Time between readings only.

Answer: (A)

When calibrating a pressure transducer, you record the electrical output that corresponds to each known reference pressure. This output directly defines how the sensor’s signal maps pressure to voltage or current, allowing you to build the calibration curve used for accurate measurements in operation. Temperature readings or other data might be collected for compensation purposes, but they do not establish the pressure–output relationship at each point. Likewise, measuring only noise or only the time between readings does not provide the actual pressure-to-output data needed for calibration. Therefore, the essential data at each reference pressure point is the transducer’s output signal.