1. What is the Pressure Sensor Output Equation?

The Pressure Sensor Output Equation calculates the voltage output of a pressure sensor based on its gain, the applied pressure, and the bias voltage. This linear relationship is fundamental in sensor calibration and signal processing.

2. How Does the Calculator Work?

The calculator uses the sensor output equation:

Where:

• \( Gain \) — Sensor sensitivity (volts per psi)
• \( Pressure \) — Applied pressure (psi)
• \( Bias \) — Offset voltage (volts)

Explanation: The equation represents the linear transfer function of most pressure sensors, where output voltage is proportional to applied pressure with an offset.

3. Importance of Sensor Output Calculation

Details: Accurate sensor output calculation is crucial for system calibration, signal conditioning, and ensuring proper interpretation of pressure measurements in various applications.

4. Using the Calculator

Tips: Enter gain in volts/psi, pressure in psi, and bias in volts. All values must be valid numerical values.

5. Frequently Asked Questions (FAQ)

Q1: What is sensor gain?
A: Sensor gain (sensitivity) is the ratio of output voltage change to input pressure change, typically expressed in volts per psi.

Q2: What is bias voltage?
A: Bias voltage is the output voltage when zero pressure is applied, representing the sensor's offset or zero-point error.

Q3: Are all pressure sensors linear?
A: Most modern pressure sensors have a linear response within their specified operating range, though some may require polynomial correction for higher accuracy.

Q4: How do temperature variations affect the output?
A: Temperature can affect both gain and bias, so temperature compensation may be necessary for precise measurements.

Q5: Can this calculator be used for different pressure units?
A: The calculator uses psi, but you can convert other units to psi first (1 bar = 14.5038 psi, 1 kPa = 0.145038 psi).