Traditional Culture Encyclopedia - Almanac inquiry - What kinds of rulers are there? What kinds of rulers are there?
What kinds of rulers are there? What kinds of rulers are there?
Tape measure is a common measuring tool in daily life. Divided into fiber tape measure, tape measure, waist measure and so on. What we often see is a steel tape measure, which is often used in construction and decoration, and is also one of the necessary tools for families. Lu Banchi, Feng Shui ruler and secretary also belong to steel tape measure. The main type of tape measure is steel tape measure, followed by fiber tape measure, which is the tape measure that everyone often sees. Many people say it's a cloth tape measure and a waist tape measure.
Steel ruler is a long ruler made of thin steel plate, which can be rolled into a metal round box, so it is also called steel tape measure. The width of the ruler is about 10 ~ 15 mm, and the length is 20m, 30m and 50m. Steel straightedge has high tensile strength and is not easy to stretch, so it has high distance accuracy and is often used in engineering survey. A steel ruler is a steel tape measure. The steel rule is basically divided into centimeters, and every meter has digital remarks, which is suitable for general distance measurement.
Vernier caliper is a measuring tool for measuring length, inside and outside diameter and depth. The vernier caliper consists of a main ruler and a sliding vernier attached to the main ruler. The main ruler is usually in millimeters, while the cursor has 10, 20 or 50 scales. Vernier calipers can be divided into 10-degree vernier calipers, 20-degree vernier calipers and 50-degree vernier calipers.
Outside micrometer, also called spiral micrometer, is often referred to as "micrometer" for short. It is a more precise length measuring instrument than vernier caliper, with the accuracy of 0.0 1mm, 0.02mm and 0.05 mm, and with the estimated 1 bit, it can be read to the third place after the decimal point, so it is called micrometer.
- Previous article:How about getting married on June 29, 20 18?
- Next article:Is the fourth day of the sixth lunar month in 2022 suitable for funeral?
- Related articles
- How does Chinese medicine see the tongue to determine the disease?
- China authentic Gregorian calendar 202 1
- Appreciating the Diversity of The Untamed (Episode 5)
- When should I pick up my car on the auspicious day of June in the lunar calendar in 2023?
- Huangli new book
- What does a paper tie mean?
- Male1July 982 14, female1April 985 19, planning to get engaged in February 2009 and get married in February 20 10. Excuse me, when is the yellow calendar suitable? thank you
- What day is suitable for moving in March?
- A harbinger of theft in a dream
- Can Ssangyong rise on the second day of the second lunar month in 2022? Can we start the renovation on February 2?