Voltage to Pressure Calculator, Formula, Voltage to Pressure Calculation

Voltage to Pressure Calculator:

Enter the values of pressure range, P_R(psi), measured voltage, V_r(V), lower voltage limit, V_L(V) and upper voltage limit, V_U(V) to determine the value of Pressure, P_(psi).

Voltage to Pressure Formula:

Voltage to pressure conversion is a fundamental concept used in various engineering applications, especially in electrical-to-mechanical energy transformation devices.

It establishes a relationship between electrical signals and physical pressure, allowing for precise control and measurement.

Typically, sensors such as piezoelectric or capacitive transducers are used to convert voltage changes into corresponding pressure readings.

Pressure (in the same units as PR) – the calculated pressure value.

Pressure range (in the same units as P) – the maximum pressure the sensor can measure.

Voltage reading (volts) – the actual voltage output from the sensor.

Voltage lower limit (volts) – the voltage output when there’s no pressure (zero pressure).

Voltage upper limit (volts) – the voltage output when the pressure is at its maximum (PR).

Pressure, P_(psi) in pounds per square inches is calculated by multiplying the pressure range, P_R(psi) in pounds per square inches by the difference between the measured voltage, V_r(V) in volts and the lower voltage limit, V_L(V) in volts. Divide this result by the difference between the upper voltage limit, V_U(V) in volts and the lower voltage limit, V_L(V).

Pressure, P_(psi) = P_R(psi) * (V_r(V) – V_L(V)) / (V_U(V) – V_L(V))

P_(psi) = pressure in pounds per square inches, psi.

P_R(psi) = pressure range in pounds per square inches, psi.

V_r(V) = measured voltage in volts, V.

V_U(V) = upper voltage limit in volts, V.

V_L(V) = lower voltage limit in volts, V.

Voltage to Pressure Calculation:

1. A sensor with a pressure range of 100 psi outputs a voltage of 3V. The sensor has an upper voltage limit of 5V and a lower voltage limit of 0.5V. Calculate the pressure.

Given: P_R(psi) = 100psi, V_r(V) = 3V, V_U(V) = 5V, V_L(V) = 0.5V.

Pressure, P_(psi) = P_R(psi) * (V_r(V) – V_L(V)) / (V_U(V) – V_L(V))

P_(psi) = 100 * (3 – 0.5) / (5 – 0.5)

P_(psi) = 100 * (2.5) / (4.5)

P_(psi) = 55.56psi.

2. A pressure sensor is calibrated with a pressure range of 50 psi. The sensor outputs a voltage when measuring a pressure of 30 psi. The sensor’s upper voltage limit is 10V, and the lower voltage limit is 2V. Find the voltage output.

Given: P_R(psi) = 50psi, P_(psi) = 30psi, V_U(V) =10V, V_L(V) = 5V.

Pressure, P_(psi) = P_R(psi) * (V_r(V) – V_L(V)) / (V_U(V) – V_L(V))

V_r(V) = (P_(psi) / P_R(psi)) * (V_U(V) – V_L(V)) + V_L(V)

V_r(V) = (30 / 50) * (10 – 2) + 2

V_r(V) = 4.8 + 2

V_r(V) = 6.8V.