A caliper, also called vernier caliper or caliper, is a length measuring device for internal and external dimensions. It consists of a pole with four measuring legs, 2 of which are movable. The reading scale is a centimeter-scale or millimeter scale and the so-called vernier scale.
The caliber is a handy measuring instrument, which is needed for production and manual work. Since the slide is a measuring instrument and not teaching, so now dispensed almost entirely on the terms caliper or caliper, which were commonplace in earlier times, especially in the USA.
The Caliper Structure
The caliper is a hand-held measuring instrument and consists of a long rod with two measuring arms attached to its head. These two legs cannot be moved, just like the base bar. On the rod but can move a slider, to which two measuring legs are also attached. This slider is also called a variable leg because it can be moved along with the attached legs along the rod. Also, there is a device that detects the caliper and he can not move.
This is important if you want to measure something, set the device aside and note the values of the measurement and not let the measurements slip. To read the measured values, the slider has several scales.
Different types of calipers
Since these measuring instruments have many advantages, they are available in several different types depending on the field of application and possibility. Here are some listed:
- Precision Calipers
- Depth gauge
- Height caliper
- Precision workshop calipers with a linear scale
- Digital workshop caliper with an LCD and a fine adjustment device
- Precision caliper with a round scale
- Precision gear meter
- Digital precision caliper with the capacitive measuring system
The parts of a conventional vernier caliper in detail
- the fixed measuring leg with a jaw
- the movable measuring leg with a jaw
- the rail with the main scale
- the slider
- the vernier scale
- the locking screw
- the depth measuring rod
The correct applications of a Caliper
Now we would like to explain to you step by step how to take the respective dimensions of an object. As an object, we have chosen here for a hexagon nut. Because you can ideally take all three dimensions.
Determining External Dimensions
- To take the outer dimensions of our nut, the slider is pulled back and thus the legs are raised.
- Then place the nut between the thighs with the flat sides, which are exactly opposite each other.
- Then push the legs together until they touch the surfaces of the nut. Do not apply too much force and fix the slider.
- Now you can read off the corresponding value on the scale.
Determining Internal Dimensions
- To determine the internal dimension of the nut, you do not have to slide the caliper.
- Insert the two small, upper legs into the middle hole of the nut.
- Then you can put on the legs until they touch the inner walls of the hexagon nut.
- Now you can read off the corresponding measured value on the scale again.
Determining Depth Dimensions
- Take the depth gauge of the nut by first inserting the thin extension at the end of the caliper rod into the hole down to the bottom.
- Then you have to pull down the slider until it rests flush on the surface of the nut.
- Now pull out the wand and read off the value of its scale.
Determining the Step Size
- The function of being able to take step dimensions remains unnoticed mainly when using the caliper.
- Still, it can be useful, of course. There are two different methods.
- To take the measurements of steps, first, place the meter on its head. Make sure that the scales point to you so you can read the values.
- Then pull the variable leg on the pole with the big thighs to the top of the step. Now all you need to do is read the value.
- The other method is to measure the whole thing with the dipstick at the end of the meter. How that works, we have already described.
Also, there is a scale above and below the caliper rod; this is called Nonius. The vernier makes it easier for you to read the exact values. However, there are also other reading aids that you can find on calipers. In addition to the vernier, there are variants with around scale and a digital numeric display, which are located at the same height as the vernier.
Operation of the Caliper Made it Easy!
There are only a few little things that you have to consider when measuring with a vernier caliper to obtain an optimal measurement result. With the right orientation and a little practice, however, the measuring and reading then go by itself as if by itself. No matter which variant you choose, you now have the right manual for the right use for every case!
This brings us back to the end of our article and we hope once again that we were able to help you with problems around the caliper.