Optical Projectors
Posted by mechlook info on January 17th, 2012 08:30 PM | 1 Comment
It has become an indispensable instrument in modern metrological laboratories because of its versatility and ease in use. Using optical projectors it is possible to measure those components which arc difficult to be measured by other methods due to ...
Fluid Displacement Comparators
Posted by mechlook info on January 12th, 2012 06:26 PM | No Comment
This type of comparator has limited applications due to some of the disadvantages associated with it. But it is discussed here for the sake of the new and altogether different method of magnification. In this comparator, a fine bore capillary ...
Electrical and Electronic Comparators
Posted by mechlook info on January 12th, 2012 06:25 PM | No Comment
These comparators depend for their operation on Wheatstone bridge circuit. In d.c. circuit, a change of balance of the electrical resistance in each arm of the bridge is caused by the displacement of an armature relative to the arm ...
Pneumatic Comparators
Posted by mechlook info on December 16th, 2011 01:05 AM | 5 Comments
Air gauging has rapidly increased during some past time due to the following important characteristics :
(a) Very high amplifications are possible. It can be used to measure diameters, length, squareness, parallelism, concentricity, taper, centre disance between holes and other geometric ...
Comparators-Recent Gauging Techniques
Posted by mechlook info on October 15th, 2011 02:39 PM | No Comment
Some recent developments have taken place in other countries in the field of measurements. These are discussed here in brief to keep the students abreast of the latest innovations in the field of Metrology. These newer devices include ultrasonic ...