Measuring Machines-Optical Measuring Instruments
Posted by mechlook info on November 5th, 2011 11:29 PM | No Comment
Optical Measuring Instruments
In these instruments, light beam is used as the amplifying lever. The light beam has the advantage of straightness and weightlessness. The optical measuring instruments include :
(i) Vertical optimeters.
(ii) Horizontal optimeters.
(iii) Tool maker's microscope.
These are used for highly ...
Measuring Machines-Engineering Microscopes
Posted by mechlook info on November 4th, 2011 12:24 AM | 1 Comment
Engineering Microscopes
Engineering microscopes are optically assisted instruments for measuring the geometric dimensions and forms of small and medium sized technical parts. These present the enlarged view of the observed object area, either in its contours, or as a surface image. ...
Measuring Machines-Optical Projection Comparator
Posted by mechlook info on November 4th, 2011 12:24 AM | No Comment
Optical Projection Comparator
Fundamentally projection comparator (projector) is a measuring instrument which projects an enlarged shadow of the part being measured on a screen, where it is compared to a master drawing. By this device, complicated shaped parts can be easily ...
Measuring Machines-Universal Measuring Machine
Posted by mechlook info on November 4th, 2011 12:24 AM | No Comment
Universal Measuring Machine
These machines can be utilised to measure length and diameters of both plain and threaded work, tapers and the pitch of the screw threads to a high degree of accuracy Some machines employ two and three co-ordinate measuring ...
Measuring Machines-Newall Measuring Machine
Posted by mechlook info on November 4th, 2011 12:24 AM | 2 Comments
Newall Measuring Machine
This machine and Zeiss measuring machine and some others have the different features of the sensitive indicator on headstock side. The measurement of difference in length between the work- piece and standard bar length being again done by ...
Measuring Machines-Length Bar Measuring Machine
Posted by mechlook info on November 4th, 2011 12:24 AM | No Comment
Length Bar Measuring Machine
The general form of measuring machine called length bar measuring machine used to determine the length of a pin gauge consists of a long bed having vee and flat guide ways along the bed to allow suitable ...
Measuring Machines-Introduction
Posted by mechlook info on November 2nd, 2011 11:41 PM | 1 Comment
Introduction
Measuring machines are generally used for measurement of length over the outer faces of a length bar or any other long member with ends that may be either rounded, or flat and parallel. The need of measuring machines is realised ...