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Manometer Pressure Equation:
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A manometer is a device that measures pressure using the height of a liquid column. The pressure difference is calculated based on the fluid density, gravitational acceleration, and height difference in the manometer tubes.
The calculator uses the manometer pressure equation:
Where:
Explanation: The equation calculates the total pressure by adding the atmospheric pressure to the hydrostatic pressure created by the fluid column.
Details: Accurate pressure measurement is crucial in various fields including engineering, meteorology, and medicine. Manometers are commonly used to measure gas pressures, blood pressure, and pressure differences in fluid systems.
Tips: Enter all values in SI units. Standard atmospheric pressure is 101325 Pa, water density is typically 1000 kg/m³, and standard gravity is 9.81 m/s². Height difference must be measured accurately.
Q1: What types of manometers are there?
A: Common types include U-tube manometers, well-type manometers, and inclined manometers, each suited for different pressure ranges.
Q2: What fluids are used in manometers?
A: Mercury (13,600 kg/m³) is common for high pressures, water (1000 kg/m³) for moderate pressures, and oil (800-900 kg/m³) for very low pressures.
Q3: How does temperature affect the measurement?
A: Temperature affects fluid density. For precise measurements, use the density at the measurement temperature or apply temperature corrections.
Q4: What are common applications of manometers?
A: HVAC systems, medical equipment, laboratory experiments, and industrial process control often use manometers.
Q5: How accurate are manometers?
A: Well-designed manometers can be very accurate (within 0.5%), but accuracy depends on proper calibration, vertical alignment, and reading precision.