ANGLE MEASURING INSTRUMENTS PDF
Protractor.: It is the simplest angle-measuring device and can. Clinometer.: It is a device for measuring angle between two. Sine Bar.: It is an indirect angle-measuring instrument which. Angle Gauges.: It is a precision angular measuring device that can. Use an adjustable triangle to measure angles between 0 and 90 Add the measurement to the height from the instrument to the ground. Pages in category "Angle measuring instruments". The following 5 pages are in this category, out of 5 total. This list may not reflect recent changes (learn more).
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Reading the Vernier scale: Twenty four spaces on the Vernier scale equal in extreme length twenty three double degrees[ clarification needed ].
Read off directly from the main scale the angle measuring instruments of whole degrees between 0 on this scale and the 0 of the Vernier scale. Then count, in the same direction, the angle measuring instruments of spaces from the zero on the Vernier scale to a line that coincides with a line on the main scale; multiply this number by 5 and the product will be the number of minutes to be added to the whole number of degrees.
Zero on angle measuring instruments vernier scale has moved 28 whole degrees to the right of the 0 on the main scale and the 3rd line on the vernier scale coincides with a line upon the main scale as indicated.
Multiplying 3 by 5, the product, 15, is the number of minutes to be added to the whole number of degrees, thus indicating a setting of 28 degrees and 15 minutes.
Protractor - Wikipedia
Two Sided Protractor[ edit ] Protractors have traditionally been one-sided. This is thought to be because early manufacturing methods set the tone of future production. Use an adjustable triangle to measure angles between 0 and 90 degrees by placing it on the horizontal axis and adjusting the hinged edge angle measuring instruments it lines up with the angled line you want to measure.
If you need to copy an angle precisely, couple a compass with a ruler to measure the angle and draw an identical one. A transit level has a movable telescope that is aimed at a rod to determine a horizontal level and the angle of angle measuring instruments in degrees, minutes and seconds.
This determines the grade of a roadway or the foundation of a home. Forestry professionals use a clinometer to angle measuring instruments tree height from the angle formed between the clinometer and the tree.
To measure the total angle measuring instruments of a tree, look through the eyepiece of the clinometer at the highest tip of the tree then read the measurement on the dial.
Angle Measuring Instruments ~ ME Mechanical
Add the measurement to the height from the instrument to the ground. Sciencing Video Vault Angles angle measuring instruments Geometry In geometry class, a protractor is a ruler with a semicircle attached to it. The protractor dial may be locked in any position using the dial clamp nut.
The vernier scale is divided into 12 spaces on each side of its zero total angle measuring instruments If the zero on the vernier scale coincides with a line on the main scale, the number of vernier graduations beyond the zero need to be multiplied by 5 and added to the number of full degrees indicated on the vernier protractor dial.
Angle Measuring Tool | eBay
Below image shows a diagram of a bevel protractor. Bevel protractor with a vernier scale.
Wikimedia Commons High precision in angle measuring instruments measurements angle measuring instruments be made using a sine bar instrument, illustrated in Figure 4.
One possible setup consists of a flat steel straight edge the sine barand two precision rolls set a known distance apart on the bar.
The straight edge is aligned with the part angle to be measured, and gauge blocks or other accurate linear measurements are made to determine height. The measurement using sine bar is carried out on a surface plate to achieve most accurate results.