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What are the advantages and disadvantages for diaphragm type pressure gauge?
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Advantage and disadvantage of strain gauge?
Advantages and disadvantages of strain gauge
Do diaphragm pressure gauge require gauge saver?
NO.
Why diaphragm of a pressure gauge is corrugated?
These are corrugated to increase the sensitivity of the pressure gauge.
What is diaphragm gauges?
The diaphragm gauge gives sensitive andreliable indications of small pressure differences.
What are the advantages and disadvantages of strain gauge?
Babalo
If there is water in the pressure gauge of a fire extinguisher is it OK to use?
No. The diaphragm on the pressure gauge is leaking, and the gauge will soon be inoperative. Have the extinguisher serviced and repaired.
What tool is used for measuring air pressure?
A barometer or a diaphragm gauge.
How can you measure air pressure?
In ambient air, with a barometer. In a tire or tank, with a diaphragm gauge.
Advantages and disadvantages of McLeod gauge?
advantage: Their reading does not depend on chemical nature of gas being measured and calibration is stable. disadvantage: For measuring vacuum pressure of condensible gases this gauge is not accurate and may give erroneous reading
What are the Advantages and disadvantages of load cell?
Advantages and disadvantages of load cellBest Answer:1.-Advantages load cells[1] Strain gauge load cells can be use for weighing purposes.[2] Strain gauge load cells can also be use for material testing in process industry also.[3] Strain gauge load cells are also used in tensile test machines as a major component.[4] Strain gauge load cells can be used for both expansion and compression.[5] Strain gauge load cells are less costly so mostly used in the industry.[6] Strain gauge load cells are used in automotive industry to check the structural performances of the material used in doors, hoods, trunksetc.2.-Disadvantages load cells[1] It requires continuous electric energy for the production and display of signals.[2] It also requires an amplification circuit for the generation of output display because the signals produced by the gauge itself are of very much low voltage almost in milli volts.[3] It cannot be used for the pressure measurement of highly reactive or corrosive materials because they can damage the gauge.[4] It cannot be used for the measurement of very high pressure if the diaphragm use is of plastic.
What are the advantages and disadvantages of marking gauge?
The main advantages of using a marking gauge over a pencil and ruler is that you can repeat the settings on every workpiece that you mark out. (i.e. you can make an identical mark on each of the pieces you are working with).
What is the definition of bo rdon gauge?
http://www.tpub.com/content/engine/14037/css/14037_58.htm . Figure 9-4.-The Bourdon gauge. Bourdon Gauge The Bourdon gauge is shown in figure 9-4. It works on the same principle as that of the snakelike, paper party whistle you get at a New Year party, which straightens when you blow into it. Within the Bourdon gauge is a thin-walled metal tube, somewhat flattened and bent into the form of a C. Attached to its free end is a lever system that magnifies any motion of the free end of the tube. On the fixed end of the gauge is a fitting you thread into a boiler system. As pressure increases within the boiler, it travels through the tube. Like the snakelike paper whistle, the metal tube begins to straighten as the pressure increases inside of it. As the tube straightens, the pointer moves around a dial that indicates the pressure in psi. The Bourdon gauge is a highly accurate but rather delicate instrument. You can easily damage it. In addition, it malfunctions if pressure varies rapidly. This problem was overcome by the development of another type of gauge, the Schrader. The Schrader gauge (fig. 9-5) is not as accurate as the Bourdon, but it is sturdy and suitable for ordinary hydraulic pressure measurements. It is especially suitable for fluctuating loads. In the Schrader gauge, liquid pressure actuates a piston. The pressure moves up a cylinder against the resistance of a spring, carrying a bar or indicator with it over a calibrated scale. The operation of this gauge eliminates the need for cams, gears, levers, and bearings. Diaphragm Gauge The diaphragm gauge gives sensitive and reliable indications of small pressure differences. We use the diaphragm gauge to measure the air pressure in the space between inner and outer boiler casings. In this type of gauge, a diaphragm connects to a pointer through a metal spring and a simple linkage system (fig. 9-6). One side of the diaphragm is exposed to the pressure being measured, while the other side is exposed to the pressure of the atmosphere. Any increase in the pressure line moves the diaphragm upward against the spring, moving the pointer to a higher reading. When the pressure decreases, the spring moves the diaphragm downward, rotating the pointer to a lower reading. Thus, the position of the pointer is balanced between the pressure pushing the diaphragm upward and the spring action pushing down. When the gauge reads 0, the pressure in the line is equal to the outside air pressure. MEASURING AIR PRESSURE To the average person, the chief importance of weather is reference to it as an introduction to general conversation. At sea and in the air, advance knowledge of what the weather will do is a matter of great concern 9-4
