What is the difference between gauge & tubes?
The thickness of a tube is defined by a gauge number. Smaller gauge numbers indicate larger outside diameters. The inside diameter (ID) is theoretical. Tubes can come in different shapes such as square, rectangular and cylindrical, whereas Pipeis always round.
What distances are the M1 Carbine's rear sites calibrated to?
Upon reading your question, I searched for Owner's Manuals and Field Manuals for the M1 Carbine. The ones I found, discuss the graduations of the more complicated, elevation adjustable, rear sight. I visited a website discussing the rules for M1 Carbine shooting competitions. The targets were, per the rules, at a distance of 100 yards away from the firing line. Given the ballistics of the .30 caliber M1 Carbine ammunition, the competition rules of the CMP, the small and large apertures of the rear sight, and my personal experience, I'm going to venture my guess... I suggest sighting in your rifle at 100 yards, using the small apeture of your flip style rear sight. The large apeture is better suited for situations involving short ranges, darkness and/or close-quarters combat. There are different heights of front sights available from online vendors. So sighting in the rifle could involve swapping out the front sight with one of a different height until the rifle is zeroed, or by installing a tall front sight blade and carefully grinding it down until the shots which were hitting low on the target are eventually corrected into hitting the bulls-eye. Or you could upgrade your rear sight to a version which is adjustable for windage and elevation (available from the Fulton Armory webpage link below). I did more google searches and gained the following information. The author of this web article indicates the flip style rear sight was intended for use at 100 or 300 yards, but does not elaborate. http://www.surplusrifle.com/shooting/m1c... On this webforum page, people indicate the L style flip rear sight is for 100 and 300 yards but one person wrote that it was for use at 150 and 300 yards and to use a six o'clock hold while aiming at the bulls-eye. http://shootersforum.com/showthread.htm?... So, two sources contradict my guess, and, the rifle belongs to you. Therefore, you can sight-in with whatever method you think is best. Thanks for asking a good question. :-)
Can pressure on a gauge be negative?
Basically a pressure gauge measures the force on a defined area and it is calibrated against that area.Being the force a vector but pressure a scalar (it is indeed a tensor but we normally measure only it as a scalar), positive pressures result in forces against the sensitive area, negative pressures result from forces in the opposite direction.So definitely yes: pressure can be negativeIf you use an electric measuring device, like a silicon sensor, you can easily see that its signal is positive or negative depending on the aforementioned conditions .
What type of pressure is tire pressure? Is it gauge pressure, absolute pressure, or differential pressure?
Tire pressure specifications on the sticker in the door jamb or inside the gas flap of your car are given in gauge but gauge/absolute/differential refers to the measuring device used. If you use a atmosphere referenced gauge to measure the pressure, you will get a gauge reading. You can use an absolute pressure gauge to measure the tire pressure and this is actually very common. The reading would be PSIA instead of PSIG so the absolute pressure reading would need to be converted to gauge. This is how TPMS systems work. There is an absolute pressure transducer inside of the tire that transmits the pressure reading to a receiver. If you use a differential pressure gauge, you will get a differential reading between the pressure in the tire and whatever pressure is on the other side of the gauge. If one side is atmosphere and the other side is the pressure inside the tire, the reading is differential but also gauge. If one side were the pressure inside one tire and the other side was the pressure inside a second tire, you would have the differential pressure between them.
What type of pressure gauge uses a diesel line?
Gotta be more specific pal. If you’re reading presssure between a lift pump and an injection pump you can use an appropriately scaled hydraulic gauge and T it into the line. Anything beyond that - output from injection pump - you need specialty gauges. And if it’s a common rail, you’ll need some real expensive tools
What is the difference between a vacuum gauge and a pressure gauge?
Pressure gauge measures pressure of a liquid or gas. Atmospheric pressure is usually taken as reference for most measurement. Without going into details, approximately 760 mm Hg column supported by atmosphere at standard conditions is taken as 1 atmosphere pressure. Any pressure above this is positive pressure and the one below this is negative pressure, or vacuum.Pressure measurement is done by various methods and different types of pressure gauges. Those measuring negative pressure (below atmospheric) are usually termed vacuum gauge. These materials start at zero and go up to -760 mm Hg.Gauges designed to measure on both sides of zero reference are compound gauges. These compress negative pressure on one side of zero and show pressure above atmospheric on other side of zero.However, in vacuum technology, pressures are measured as absolute pressure without comparison to atmospheric. Thus approx. 760 mm Hg below atmospheric is zero absolute pressure. Zero pressure is defined when air is totally absent. In practice, zero absolute pressure is never achieved, however low pressure we may go. So vacuum gauge starts measuring at absolute zero pressure, and measure in varying degree of accuracy depending on requirements. Ranges of vacuum are divided in low vacuum, medium vacuum, high vacuum and ultra high vacuum.Rough vacuum gauges are physically marked in Hg mercury (manometers). Then come gauges which start measuring below certain pressure, say 50 mm absolute. Some others start below 10 mm or 1 mm. Resolution may vary and go to 0.001 mm Hg (Torr) for mercury type meters. Gauges are available to measure as low as 10^-12 torr. You need high precision electronic gauges for very high vacuum .
What is the difference between a gauge and an instrument?
A Gauge is an Instrument.Instrument is a specific tool which is used for a specific work. Generally , it is used for delicate works.Basically, Gauge is used for only visual display of an quantity and can not send the data using telemetry to PLC / DCS System or simply to the operating computational device.Like : - Pressure Gauge and Pressure Transmitter both are Instruments and used for pressure measurement but Pressure Gauge only measures and displays the present output (pressure value) whereas Pressure Transmitter measures and transmits it to the Supervisory Station.Basically, Gauge is an Indicating type Instrument.Pressure GaugePressure Transmitter
How can i make loop check for pressure transmitter and temperature transmitter, and what tools needed?
When checking an industrial control loop you need to be able to supply the correct calibrated signal at standard points. (4-20ma , 0 to 5V or 0 to 10V) You an use DVM ,Loop calibrators and / or a HART interface. HART is a digital communicator that lets you "talk" to the transmitter to configure it and place it into diagnostics mode 4-20ma current loops are the most common. Many transmitters now provide functonality to send what ever signal is dialed in on the faceplate. HART can als provide access to this functionality Otherwise you have to open the loop and replace the transmitter with a calibrated standard. You qualify the receiver with standard points 4ma 12ma & 20ma that correspond to 0% 50% & 100% scale and ensure that the receiver is correctly displaying these points. Reconnect the transmitter into the loop then apply a calibrated physical standard. In the case of a pressure transmitter this is a pressure applied to the transmitter input that is campared to a qualified gauge. You then check that the output signal is correct for the applied value of pressure. Temperature is a lttle harder to do as you either have to use a temperatrure standard which is cumbersome to use in teh field OR a signal simulator that replaces the sense elements signal Such as a thermocouple simulator which generates a known voltage to match the seebeck voltage of a given type at standard points.
What does bar mean on a pressure gauge?
Bar is a metric measure of pressure from Europe (Germany)1 bar is approximately 14.5 psi.I spent many years in the hydraulics industry and used Bars as a pressure measure and litres/min as flow rate.In approximate terms:70 bar is 1000 psi210 bar 3000 psi