Where is mechanical gauge used

Bore Gauges: Bore gauges are used to measure the size of any hole and come in both digital and analogue variants. Depth Gauges: These gauges are used to measure the depth of slots and holes. Depth gauges are available in digital, analogue and scale variants.

Dial Gauges: These gauges are used to measure flatness of surfaces and detecting minor deviations in linear measurements of objects. Dial gauges are also used to measure the centricity of circular objects. Industrial pressure gauge is suitable for production processes that would not block the pressure system.

Industrial gauges are used in manufacturing industries, OEM applications, hydraulic, water treatment and RO industries. Process Pressure Gauges — In industries where the production process functions under extreme conditions, subjected to vibrations, pressure spikes and a corrosive environment like in certain areas of petrochemical and other chemical industries , a process pressure gauge can be safely used. Plants construction processes, pneumatic systems and cleanrooms often need low pressure gauges.

Seal Gauges — These gauges are designed to seal potential leak paths and are used in variety of industrial applications to meet material compatibility requirements, viscous applications, corrosive chemicals, vibrations, sanitary and pharmaceutical requirements. High Precision Test Gauges — These gauges are well-suited for processes that require precise calibration as in testing laboratories.

Duplex Pressure Gauges — These are a type of differential pressure gauge that can function in extreme environments and measure the difference between two applied pressures.

This is sometimes required in refrigeration, fuel, chemical and air-handling Industries. Factors like the level of accuracy required, appropriate dial size for readability, durability of material to suite environment and process conditions , mounting options available and the range of pressure that it can measure and pressure type to be measured determine what kind of gauge may be right for you to use.

If you choose a manufacturer who gives you a wide variety of gauges to choose from, choosing the right one will be an uncomplicated process. What is a Pressure Gauge? Or, if an application is not listed there specifically, check under intended applications for additional choices.

Gauges generally are direct reading instruments as opposed to sensors, transducers, etc. Thus pressure gauges, be they analog or digital, make direct readings and provide data at the instruments themselves.

The same applies to level gauges and to the many various gauges used for machined parts metrology. Some gauges provide no reading at all, especially those referred to as fixed limit gauges, which are used to evaluate tolerancing on parts and provide simple yes or no answers to the question of whether or not a particular part falls within its design parameters. Other gauges such as feeler gauges also rely on this same simple tactile feedback. Another advantage of analog gauges is that they need no power supply which for digital gauges usually means batteries.

An advantage of many digital gauges is their ability to feed outputs to data acquisition systems. Liquid level gauges are generally direct reading and sized according to the depth of the tank they monitor. Analog and digital versions are generally available for the many metrology gauges such as depth, bore, etc. Again the ability to port measurements form the instrument makes digital gauges helpful for quality control documenting. Limit gauges, profile gauges, etc.

They are designed to be used for quick verification that a part is made within tolerance. Fixed limit gauges are often sold as sets of pins which cover ranges of diameters. The pins increase by finite increments between the minimums and maximums of the set ranges. Some sets bracket the nominal dimension with plus and minus pins.

Ring gauge sets adopt similar methodologies. Such gauges will never accept a bad part but due to tolerancing can reject good parts. Digital displays can make reading easier than using a classic micrometer thumbwheel, but set up of the measuring instrument remains an important step. Granite tables are often used by machine shops to create a flat, stable reference surface for height measuring.

Often of interest are the surface characteristics of flat plates or the runouts of circular shafts. A common way of measuring these are with so-called dial indicators which use styli to trace over the surfaces and display the total deviation from some nominal dimension on dials.

Another indicator is a so-called Force indicator which differs from a force gauge in that the indicator generally displays force and load information gathered from external sensors such as load cells. A force gauge, in contrast, is generally a self-contained instrument. Where a force indicator might be used on a truck weigh scale, a force gauge might be used to determine how much push is needed to close a door.

Thermocouples consist of two dissimilar conductor wire, made from different metals. These wire are welded together at one end, form a junction used to measure temperature.

Thermistors have a high coefficient of resistivity. Thermistors are made of semiconductors of solid type. The suitable temperature measuring range for thermistors is degree Celsius to degree Celsius. Some special type thermistor can measure up to degrees of temperature. The change in temperature is measured by changes in its resistance. So, the Wheatstone bridge circuit is used for it.

Also, thermistor can convert changes in temperature to corresponding changes in voltage as a current. Air gets pulled down by gravity and hence air exerts pressure on objects. One such example of measurement is known as a barometer. Barometers are scientific instruments that are used for the measurement of atmospheric or air pressure. It is an important and essential tool used in the meteorological department for forecasting short term weather and altitude changes.

The barometers should be kept at the same level and cannot measure air pressure above the altitude of 5, feet. Initially, water-based barometers were used, later it was replaced by mercury and aneroid barometers which the two most commonly used barometers. Plug gauge is used for assessment of hole or diameter of an object. Behalf of checking the diameter plug gauge also use in comparing, setting, calibrating of other gauges. In an electric circuit, even if the switch or loop is closed, it is difficult to know whether the current is flowing, hence for this purpose galvanometer was introduced in the circuit.

Hi, Thanks for writing! Yes, of course. This site uses Akismet to reduce spam. Learn how your comment data is processed. Email Address. Learn More. Vernier Caliper Vernier Caliper is a widely used linear measurement instrument with a least count of 0. It is Basic Instrument of measurement, consist of two types of scale The main scale and the Vernier scale that can slide along the main scale.