Linear Measurements – Small Bore Diameter Measurement: by a Ball on a Wire
Posted by mechlook info on January 19th, 2012 10:52 PM | No Comment
Small Bore Diameter Measurement: by a Ball on a Wire
The principle of this method is shown in Fig. 2.122. A piece of spring wire with a small ball near one end is fastened at its other end to a fixed ...
Linear Measurements – Measurement of Small Bore by a Pivoted Stylus and Auto-Collimator
Posted by mechlook info on January 18th, 2012 08:25 PM | No Comment
Measurement of Small Bore by a Pivoted Stylus and Auto-Collimator
This method is shown diagrammatically in Fig. 2.124. A ball ended stylus, slightly smaller -than the hole to be measured, is set along a diameter of the component and swung into ...
Linear Measurements – Digital Measurement Equipment
Posted by mechlook info on January 18th, 2012 08:25 PM | No Comment
Digital Measurement Equipment
Digital indication is better by far when an exact quantitative value is desired.
The important elements of any electronic digital readout system are the scale unit or transducer and the counter or digital readout unit.
The majority of linear digital ...
Linear Measurements – Slip Gauges
Posted by mechlook info on January 16th, 2012 08:54 PM | No Comment
Slip Gauges
"Slip gauges are often called Johannsen gauges also, as Johannsen originated them. These are rectangular blocks of steel having a cross-section of about 30 by 10 mm. These are first hardened to resist wear and carefully stabilised so that ...
Linear Measurements – Slip Gauge Accessories
Posted by mechlook info on January 16th, 2012 08:46 PM | No Comment
Slip Gauge Accessories . Although slip gauges can be used for many purposes without the aid of any auxiliary equipment, but their field of application is considerably extended by a few simple accessories, viz., holders, jaws, scribers and centre points ...
Linear Measurements- Vernier Depth Gauge
Posted by mechlook info on January 2nd, 2012 09:54 PM | No Comment
Vernier Depth Gauge
For measuring the depth of holes, recesses and distances from a plane surface to a projection, the vernier depth gauge is employed. In vernier depth gauge, the graduated scale can be slid through the base and vernier scale ...
Linear Measurements- Vernier Height Gauge
Posted by mechlook info on January 1st, 2012 03:36 PM | No Comment
Vernier Height Gauge
(Fig. 2'82). This is also a sort of vernier caliper, equipped with a special base block and other attachments which make the instrument suitable for height measurements. Along with the sliding jaw assembly, arrangement is provided to carry ...