Pressure Basics
What is the unit of pressure commonly used in the United States?
Pounds per square inch (PSI)
Gauge pressure is related to?
The surrounding atmospheric pressure
What is the type of device that measures pressure by detecting changes in the ability of a device to accumulate or keep an electrical charge?
Capacitance Gauge
It is the process of adjusting a device to ensure it provides accurate readings.
What is calibration?
"Blaise pascal" A French mathematician, scientist and philosopher introduced a value of measurement: One pascal is equivalent to 1 newton ( N ) of force applied over an area of 1 square meter (m²).
Who discovered the unit for pressure?
It is a contrast in between two points in a fluid system.
What is differential pressure?
The ones that contributed to the early development of the technology. they make a type of sensor which explains that the strain are the outcomes of applying external forces to a stationary object.
Who is Edward E. Simmons and Arthur C. Ruge?
What do you call a precise instrument used to calibrate pressure measuring devices like pressure gauges and sensors? to ensure that these devices provides accurate readings?
Deadweight Tester
In pascal, What is the standard SI unit pressure exerted by the weight of the atmosphere at sea level.
101,325 Pa or 1 atm
Air pressure moves from the areas of _ to what?
High pressure to low pressure area
It indicates the pressure relative to the atmospheric pressure, an instrument that measures the pressure of a fluid or gas in a confined space.
What is a Manometer?
The principle behind these devices is that they receives a signal or stimulus and responds to it by generating an electrical signal.
How does sensors work?
Pressure=newton/ square meters
What will you get when you calculate force over area? / What is the formula for the unit pascal?
In absolute pressure, Measurements taken in Absolute zero pressure use this absolute zero as their what?
Reference point
What are the three types of Gauge sensors?
Diaphragms,Capsules,bellows
In measuring gauge pressure, this sensor with one side is exposed to the pressure medium to be measured and the other side exposed to the surrounding air pressure.
What is a diaphragm sensor?
Vacuum is a volume empty of matter, sometimes called what?
Free space or Empty space
The summation of___+____ is equal to Absolute pressure
What is gauge and atmospheric pressure?
This measurement device consists of a glass tube filled with (Hg), Which is inverted into a dish of (Hg). It works by atmospheric pushes down on the Hg in the dish, causing it in the tube to rise or fall.
What is Mercury barometer?
A McLeod gauge measures low pressures by compressing gas into a smaller volume. In what principle is used to calculate unknown pressure?
Boyle's law (P1V1 = P2V2)