Pressure gauges belonging to grade 0.1 to 0.6 and hig-her are preferably used in laboratories and workshops. They are generally configured to fit through the confines of narrow bores and then be opened to take the measure of any internal features. The same applies to level gauges and to the many various gauges used for machined parts metrology. x�b```b``Ia`a`��e`@ V6�8�&�MJ��rr�#�W�c`H���~u����I�Q�Z&� 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. 10 Gauge Design & Basic Principles If your company can help provide supplies, capabilities, or materials for products such as Stay up to date on industry news and trends, product announcements and the latest innovations. Key specifications include depth gauge type, measurement range, graduation, dial reading, along with a host of possible features. 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. Ring gauges are used as a quick pass/fail test to determine if the outside diameter or thread feature of a part lies within the specified range of acceptance.Snap gauges are simple mechanical inspection instruments used to verify that the outside dimensions of parts are within their specified tolerances. Below we list the different types of gauges used in industries. Such gauges will never accept a bad part but due to tolerancing can reject good parts.Unlike fixed limit gauges, height, bore, depth, and groove gauges are essentially special purpose micrometers/calipers designed to measure over wider ranges but which require some skill in their use. Direct reading rules and digital readouts are available as well. Manometers and vacuum gauges are also covered under pressure gauges.Digital Pressure Gauges are electro-mechanical instruments which measure the force that a contained liquid or gas exerts on a unit area. In some instances they are used as precision assembly shims to adjust the clearances between mating parts. 0000000016 00000 n
0000005488 00000 n
Gauge sets are usually identified as “plus” or “minus” to indicate which side of the nominal dimension, that is, the go or no-go dimension, the sets are intended to cover. Mechanical gauges are instruments that measure pressure, dimensions, levels, etc. �3YpR!��e�a�F/���*M�E ٌ�n2�~�I�c�5':��$t��ZDȗ,q��n\n�磱/�S1Սc��4���n�,���t�FCZ� 0000001333 00000 n
0000000649 00000 n
Thus pressure gauges, be they analog or digital, make direct readings and provide data at the instruments themselves. This value is called Maximum Operating Pressure.Measurement range applies to metrology gauges that measure bore, depth, etc. 0000002740 00000 n
Some can be set up to measure absolute thickness or relative thickness. Some are used to measure concentricity.Feeler gauges are simple strips of dimensionally accurate shim stock used for measuring the gaps between machine elements.