How does profile projector works

The use of the term comparator for metrological equipment, had existed in other forms prior to Hartness's work; but they had remained in realms of pure science and highly specialized applied science. Profile projector also known as a shadow graph, and it is useful item in a small parts machine shop or production line for the quality control inspection team. The projector magnifies the profile of the specimen, and displays this on the built-in projection screen. On this screen there is typically a grid that can be rotated degrees so the X-Y axis of the screen can be aligned with a straight edge of the machined part to examine or measure.

This projection screen displays the profile of the specimen and is magnified for better ease of calculating linear measurements. An edge of the specimen to examine may be lined up with the grid on the screen.

From there, simple measurements may be taken for distances to other points. This is being done on a magnified profile of the specimen.

It can be simpler as well as reduce errors by measuring on the magnified projection screen of a profile projector. When an object is placed in between condenser lens and the light source, a shadow of the profile is projected at some enlarged scale on the screen.

Your email address will not be published. Sign me up for Post Updates! This site uses Akismet to reduce spam. Learn how your comment data is processed. Our motive is to help students and working professionals with basic and advanced Engineering topics. Express with Design A comparator is a precision instrument used to compare the Dimensions of a given working component with the actual working standard. Leave a Reply Cancel reply Your email address will not be published.

We always care about your Privacy! Switch on the optical profile projector. Place the clean work piece on the glass of the table. Focus it properly by moving focusing wheel and moving the work table to obtain correct magnified image of the object.

Horizontal x axis measurement can be taken by right hand side micrometer and the vertical measurement can be taken from front side micrometer. Bench type ii. Vertical type iii. Different industries use different type of components. Total views 7, On Slideshare 0. From embeds 0. Number of embeds 2. Downloads Shares 0. Comments 0. Likes 5. You just clipped your first slide! Clipping is a handy way to collect important slides you want to go back to later. Now customize the name of a clipboard to store your clips.

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