Digital Caliper vs Dial Caliper

A caliper is an instrument used to measure the distance between two symmetrically opposing sides of an object. Calipers are used to measure objects which cannot easily be measured with a ruler. The jaws of the caliper are adjusted such that the tips fit across the points that needs to be measured. Calipers are used in fields such as mechanical engineering, metalworking, forestry, science, medicine, wood work for analysis, inspection, reverse engineering, engineering design, manufacturing. There are different types of calipers like Inside caliper, Outside caliper, Divider caliper, Oddleg caliper, Vernier caliper, Dial caliper, Digital caliper, Micrometer Caliper.

Dial calipers are one of the most common and versatile of all precision measuring tools. Dial calipers has a dial that displays the measurement with an indicator. The dial caliper reads the final fraction of a millimeter or inch on a simple dial. Dial caliper has a small, precise rack and pinion that drives the pointer on a circular dial which allows direct reVernier_Caliperading. This pointer rotates once every inch, tenth of an inch or 1 millimeter. This measurement is added to the reading from the slide. The slide of the dial caliper can be locked at a setting using a small lever or screw. The dial caliper can be used to take various kinds of measurements. Outside diameter or object thickness, inside diameter or space width, step distance, hole depth. The outside diameter or length is measured with outside measurement faces of the caliper. The inside measuring faces are the faces between which inside diameter or space width is measured. Step measuring faces are the faces between which stepped parallel surface distance can be measured. Depth measuring faces are used to measure the depth of a hole. The advantages of a dial caliper is its low initial cost and low repair cost. Assuming the rack and pinion are free of debris the accuracy is almost trusted. As this is mechanical, the measurement value is more accurate than the digital ones. Since it has a dial, the reading is a little harder to read and there may be reading errors. It is prone to mechanical failure. The readings are either imperial or metric but not both.

Digital caliper are the latest in the caliper technology. Instead of a rack and pinion mechanism, an internal microprocessor calculates the jaws and shows the reading in a display window. Measurements can be read fromDIGITAL CALIPER the LCD display. This LCD display replaces the dial in the dial caliper. They can measure up to 0.01 mm. Digital caliper can take measurements in both metric and imperial units.The readings can be switched between centimeters, millimeters and inches. The digital calipers offer a serial data output that can be interfaced with a computer or a recorder. This enhances the speed of measuring various measurements. Digital caliper is much easier to read and use. It can be set to zero with the push of a button which allows easier comparison measurements. Mostly does not have mechanical failures. Since it runs with a battery, it is prone to electronic errors because of low charge in the battery or any other issue. Much more accurate reading than the dial calipers. Digital calipers are expensive than the dial calipers.