How is Vernier depth gauge used?

How is Vernier depth gauge used?

Explanation: A Vernier depth gauge is a precision instrument, used to measure the depth of holes, recesses, slots and steps within the accuracy of 0.02 mm.

How do you read a vernier caliper depth?

Guide to Measuring Depth with a Vernier Caliper

1. Step 1 – Turn thumb screw to extend depth rod. Move the thumb screw gradually until the end of the end of the beam scale makes contact with the top of the hole.
2. Step 2 – Position rod in hole.
3. Step 3 – Turn Lock Screw.
4. Step 4 – Read Measured Value.

What is the principle of Vernier height gauge?

Vernier Height Gauge is a measuring device which is used for measurement of height of any object and marking done by help of scriber. It is based on the principle of “Difference between main scale and vernier scale like “Vernier Caliper”. Its least count is 0.02 mm or 0.001″.

Do micrometers obey Abbe’s Law?

In other words, outside micrometers follow Abbe’s principle, while hand calipers do not. Therefore, it can be said that outside micrometers have a higher measurement accuracy.

What are the advantages of using the depth micrometer compared to the depth bar of the vernier caliper?

Both types of Depth Micrometer delivers the same accuracy. Depth Micrometer follows national or international measurement standard, while vernier caliper is not(in order to check depth through extension rod only).

What is the least count of Vernier depth gauge?

The least count according to vernier principle by vernier will be, value of smallest division on thimble – value of smallest division on vernier scale = 0.01 – 0.009mm = 0.001mm. Depth micrometer: It is also called as micrometer depth gauge.

What is the reading on the vernier scale?

The vernier scale can read to 0.05 mm. So using both scales, the width can be read to the nearest 0.005 cm (or 0.05 mm). To measure the width, you read the top and bottom scale as follows: Find where the 0 mark of the vernier scale lines up on the main scale.

How does a depth gauge work?

In a membrane depth gauge, the water presses onto a metal canister with a flexible end, which is deflected proportionally to external pressure. Deflection of the membrane is amplified by a lever and gear mechanism and transferred to an indicator pointer like in an aneroid barometer.

How does a height gauge work?

A height gage is a measuring instrument in which a slider with a measuring stylus moves relative to a measuring scale on a beam and in which this motion is along a single vertical axis nominally perpendicular to a reference plane on the instrument base.

What is the difference between vernier caliper and vernier height gauge?

Vernier Height gauge is used to measure heights. Vernier Height gauge is similar to vernier caliper, but the graduated scales are held vertically. and this Vernier height gauge used in conjunction with a surface plate.