Traditional Culture Encyclopedia - Traditional stories - What are the types of scales?
What are the types of scales?
Balance is a weighing instrument for measuring the mass of an object. There are common scales, such as steelyard, bench scale and bench scale. Generally speaking, the spring scale can replace the demand of the object with the weight of the object to be measured.
The development of ancient steelyard has long been based on the use of rope buckles, non-quantitative weights and wooden, bamboo and bone scales. It was not until the 20th century that the steelyard gradually changed from the traditional rope buckle structure to the outer knife buckle plus knife bearing structure or the inner knife buckle plus knife bearing structure.
Extended data
steelyard
A small weighing instrument, with a wooden or metal rod with star point and taper as the main body, is equipped with a weight, a weight rope and a weighing pan (or hook). According to the scope of use and the size of the scale, it can be divided into shovel scale, pot scale and hook scale.
Platform scale/balance
The load-bearing device is a rectangular desktop, usually a small scale used on the ground. According to the structural principle, it can be divided into mechanical platform scale and electronic platform scale.
spring balance
A weighing instrument that measures the weight of an object by using the deformation of a spring under the gravity of the object. Its weight can range from 1 mg to dozens of tons.
Baidu Encyclopedia: Scale
- Related articles
- History of Weiyuan
- What are the customs of New Year in Jiangxi?
- In rural areas to build the first floor of the house to build how high more standard?
- What is the main course of agricultural mechanization and automation?
- An ancient advertising slogan for Mid-Autumn Festival sachets?
- How to draw the process and how to draw the process with visio?
- What's the difference between online marketing channels and traditional marketing channels?
- What does it mean to buckle platinum safely?
- What are the civilizations of Egypt?
- Yiwu City, North Road tourist attractions introduced Yiwu Trade City, what are the nearby attractions