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Q: What type of gauge is used to measure a vacuum of 500 microns?
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What is a pressure gauge?

A pressure gauge is an instrument that measures the pressure in a vessel, a line, or whatever the pressure gauge is connected to. Pressure gauges come in at least two different types: differential pressure gauges, and absolute pressure gauges. Differential pressure gauges measure - surprise - DIFFERENCES in pressure. Pressure gauges that read "zero" when not attached to anything would actually be differential gauges that measure the difference between atmospheric pressure and the pressure of whatever they are attached to. Vacuum gauges are differential gauges that measure how far BELOW atmospheric pressure the pressure is in a vessel or pipe. Gauges that measure "gauge pressure" are just differential gauges that are calibrated to measure zero at atmospheric pressure. Absolute pressure gauges would only read "zero" if they were attached to an absolute vacuum. A common type of absolute pressure gauge is a barometer. Strictly speaking, a mercury barometer is really a differential gauge that measures the difference between the vapor pressure of the mercury and the surrounding atmosphere, but the vapor pressure of the mercury is so low that the error in treating it as an absolute pressure gauge is generally negligible. There are many different kinds of gauges used to measure pressure including: Instruments hydrostatic - These measure pressure according the height of a liquid in a column. The height of the liquid is proportional to the pressure. Common types of hydrostatic gauges include: manometers, McLeod gauges, and piston gauges. aneroid - The pressure sensing element may be a Bourdon, a diaphragm, a capsule, or a set of bellows, which will change shape with changes in the pressure of whatever the gauge is attached to. The deflection of the pressure sensing element is read by a linkage connected to a needle or by a secondary transducer. The most common secondary transducers in modern vacuum gauges measure a change in capacitance due to the mechanical deflection. Gauges that rely on a change in capacitance are often referred to as Baratron gauges. Electronic sensors thermal conductivity - including two wire and one wire gauges that measure pressure via changes in the thermal conductivity of the wires as they are placed under strain. Something like this is used in a lot of electronic bathroom scales. ionization gauges - These are primarily used for measurements of low-pressure gasses. They sense pressure indirectly by measuring the electrical ions produced when the gas is bombarded with electrons. Fewer ions will be produced by lower density gases. they have to be calibrated against another type of pressure gauge and depend on the gas being measured.


How many feet does a tape measure?

depends on the type of measure


Is the Stevens Savage Arms model 311 A12 gauge side by side shotgun type A or type B?

Side-by-side


What type of measurement do you use to measure energy?

Joules


What type of angle could have a measure of 20 degrees?

Acute

Related questions

What type of pressure gauge can measure vacuum pressure?

A Bourdon Tube or a Bellows gauge


What is the bourbon gauge and explain principal of working?

A bourdon gauge is a type of aneroid gauge. It is used to measure pressure.


What are gauges?

"Gauges" is a slang term for large gauge plug jewelry. Technically "gauge" is the measure of the thickness of any type of body jewelry, including standard earring posts.


What is a pirani gauge?

The Pirani gauge is a robust thermal conductivity gauge used for the measurement of the pressures in vacuum systems. This gauge is used to measure the pressure between 0.5 torr to 10-4 torr.


What is the function of the adjusting screw in the Bourdon gauge?

Bourdon gauge is a type of aneroid pressure gauge consisting of a flattened curved tube attached to a pointer that moves around a dial. As the pressure in the tube increases, the tube tends to straighten and the pointer indicates the applied pressure.


How does an air gauge work?

the air guage machine has a spindle type guage as we have go guages for plu go and no go guage, that spindle is being inserted into the hole required to measure its ID and ovality. that spindle has passage to pass air through it alaonge its axis and at the end that passage divides into two opening alonge its diameter when air is passed thorugh the spindle( gauge) it passes though the spindle and get out throgh these two openings now if the spindle ( guage ) is inserted into the hole, it quases a drop in the pressure which is sensed by the pressure gauge mounted on the air guage machine, and that is converted into the dial guage in microns and v get redings in microns :) There are several systems of converting the back pressure in to a display measure, like diaphragms, transducers etc which have their own errors, calibration etc and all these together make the measurement system and we see complicated result.


What instrument is used to measure precipitation type?

A precipitation type sensor or disdrometer can be used to measure the type of precipitation falling, such as rain, snow, sleet, or hail. These instruments work by analyzing the size and shape of the precipitation particles as they fall through the sensor.


Why is the instrument called a screw gauge?

The instrument is called a screw gauge because it uses a calibrated screw mechanism to measure small distances with precision. By turning the screw, the user can move the measuring jaws closer together or farther apart to capture the dimensions of the object being measured.


How big is a strand of human hair?

The length of a strand of human hair can vary greatly depending on the person. However, the width of a human hair, in terms of how big it is, can measure anywhere from 40 microns to 120 microns. A micron is 1 millionth of a meter.


Who is the inventor of free piston gauge?

Richard M. Wilmoth is credited with inventing the free piston gauge in the 1950s. This type of gauge is used to measure high pressures in the range of tens of thousands of pounds per square inch (psi) by utilizing the motion of a free-floating piston.


What is a pressure gauge?

A pressure gauge is an instrument that measures the pressure in a vessel, a line, or whatever the pressure gauge is connected to. Pressure gauges come in at least two different types: differential pressure gauges, and absolute pressure gauges. Differential pressure gauges measure - surprise - DIFFERENCES in pressure. Pressure gauges that read "zero" when not attached to anything would actually be differential gauges that measure the difference between atmospheric pressure and the pressure of whatever they are attached to. Vacuum gauges are differential gauges that measure how far BELOW atmospheric pressure the pressure is in a vessel or pipe. Gauges that measure "gauge pressure" are just differential gauges that are calibrated to measure zero at atmospheric pressure. Absolute pressure gauges would only read "zero" if they were attached to an absolute vacuum. A common type of absolute pressure gauge is a barometer. Strictly speaking, a mercury barometer is really a differential gauge that measures the difference between the vapor pressure of the mercury and the surrounding atmosphere, but the vapor pressure of the mercury is so low that the error in treating it as an absolute pressure gauge is generally negligible. There are many different kinds of gauges used to measure pressure including: Instruments hydrostatic - These measure pressure according the height of a liquid in a column. The height of the liquid is proportional to the pressure. Common types of hydrostatic gauges include: manometers, McLeod gauges, and piston gauges. aneroid - The pressure sensing element may be a Bourdon, a diaphragm, a capsule, or a set of bellows, which will change shape with changes in the pressure of whatever the gauge is attached to. The deflection of the pressure sensing element is read by a linkage connected to a needle or by a secondary transducer. The most common secondary transducers in modern vacuum gauges measure a change in capacitance due to the mechanical deflection. Gauges that rely on a change in capacitance are often referred to as Baratron gauges. Electronic sensors thermal conductivity - including two wire and one wire gauges that measure pressure via changes in the thermal conductivity of the wires as they are placed under strain. Something like this is used in a lot of electronic bathroom scales. ionization gauges - These are primarily used for measurements of low-pressure gasses. They sense pressure indirectly by measuring the electrical ions produced when the gas is bombarded with electrons. Fewer ions will be produced by lower density gases. they have to be calibrated against another type of pressure gauge and depend on the gas being measured.


Holley 2 barrel carb running rich how to adjust?

1 Locate the curb idle speed screw and the idle mixture screw; both can be found at the base of the two-barrel Holley carburetor. Turn the screws carefully with a screwdriver or allen wrench depending on which type of screw your carb uses in a counter-clockwise direction, until the screws bottom out and you feel resistance.2 Turn both screws clockwise 1 1/4 turns to use as a starting point to adjust the carburetor. Start the motor, letting it warm up for about five minutes.3 Remove the rubber vacuum hose from the vacuum port on the side of the carburetor. Attach a vacuum gauge to the vacuum port.4 Adjust the screws, moving them 1/8 of a turn at a time in a clockwise direction, alternating back and forth. Continue adjusting until both screws have readings of 600 RPMs on the vacuum gauge.5 Remove the vacuum gauge from the vacuum port on the carburetor, by hand. Attach the vacuum hose to the vacuum port.