How do you read a rod scale, and how do you look at a rod scale?

Steelyard. gǎnchèng

A kind of scale, which uses the principle of lever balance to weigh the weight, is composed of a wooden weighing rod with a weighing star, a weighing hammer, a lifting rope, etc.

A small scale consisting of a wooden or metal rod with a star point and taper as the main body, and equipped with a weight (weight), a stone rope and a weighing pan (or scale hook). According to the scope of use and the size of the scale, it is divided into three types: the scale, the tray scale and the hook scale.

The rod scale consists of a type 1 lever with a focus on the outer end of the fulcrum. When weighing, according to the weight of the weighed object, the stone and the stone rope are moved on the scale bar to maintain balance. According to the star point on the weighing rod corresponding to the balancing rope, the mass indication value of the weighed object can be read.

The structure and manufacturing process of the rod scale are simple, light and small, easy to carry and use, low cost, but low accuracy.

The rod scale is one of the oldest of the various scales invented by mankind. Among the cultural relics unearthed from the Chu tomb in the eastern suburbs of Changsha, Hunan, China, before 700 B.C., there have been various refined weights, weighing rods, weighing pans, silk threads and ropes for tying weighing pans. Among the cultural relics unearthed from the Han tombs in China before 200 B.C., there have been various specifications of poles and scales.

In 1989, a complete wooden rod scale relic was found in a Han Dynasty single-kiln brick tomb in Yaoshang Village, Changxing Town, Meixian County, Shaanxi Province, China, which was made around the 1st century BC and 1st century AD. The development of ancient pole scales has long stayed on the basis of the use of rope buttons, non-quantitative weights and wood, bamboo and bone scale rods, and they are made by hand. It was not until the 20th century that the rod scale gradually changed from the traditional rope button structure to the outer knife button and knife bearing or the inner knife button and knife bearing structure.

After 1949, in order to strengthen the legal management of measurement, China successively formulated the verification regulations and national standards for rod scales. 1985 In 1987, China made a major reform of the rod scale structure, changing the original wooden rod to a metal rod, thus solving the shortcomings of the measurement accuracy of the wooden rod affected by the region and the weather, and adapting to the needs of semi-mechanization, standardization, generalization and mass production. However, rod scales have gradually become obsolete due to their low measurement accuracy.

There are many kinds of rod scales, there are kilograms and city catties, generally the old scale is the city catty, the reading of the scale rod has two sides called the front groove and the back groove, the range of the front groove is small, the maximum range of the front groove is the initial range of the rear groove, the scale range of the scale is generally marked at the front end of the scale rod, the scale rod is inlaid with metal dots, called the front sight, is the scale of the range, there is the initial fixing star and the whole "jin" scale of the metal flower, and the "two" scale of the small flower, and the "money" scale of the smaller flower.

See whether it is a kilogram scale, find a good balance point and read the code on the scale, the same as reading the general measuring instrument, first large and then small, first thick and then fine, and finally determine the value.

Your parents should know this.

1. There are two rows of scales on the scale rod, which correspond to the big and small lifts respectively.

2. Like this one, the above row corresponds to the big lift, and I call it the big lift scale.

3. Below is the small scale.

4. Put something on the weighing hook or weighing pan, hang the weighing stone on the rod, lift the small lift, and start to move the weighing stone until it is balanced, and write a 6 on the right side of the big lift, which means that it is 6kg from here. Then go to the far left, and the 30kg is the range.

5. Use the weighing stone, adjust it according to the weight of the item, and when the scale rod is balanced, the reading is OK.

Steelyard. For thousands of years, the hand bar scale can also be regarded as the "quintessence" of China. It is lightweight, classic, and extremely convenient to use, and as the main measuring tool for commodity circulation, it is active in the north and south of the country, and has been passed down from generation to generation.

There are rods and scales between heaven and earth, and people continue to give the cultural connotation of the scale, a symbol of fairness and justice, and a ruler of the conscience of heaven and earth.

With the development of the times, some things will also withdraw from our daily life, and electronic scales.

The popularity of the pole scale indicates that the pole scale will withdraw from the stage of history and become a national symbol.

The scale is pronounced chèng. Scales (scales) are a kind of weighing instruments, referring to the weight of unequal arms of the instrument, or to look at the weight of the weighed weight, or a single finger of the scale bar, the earliest physical evidence of which was found in the Indus River civilization site in present-day Pakistan, has existed since then.

Three or four thousand years of history. There are many types of scales, such as rod scales, bench scales, and electronic scales.

Verses with scales:

1, Wang Ya's "Guangxuan Venerable Master Celebrates the List and Thanks" with Poems: Zaiye only seeks money without consuming it, and learns to be selfless with empty hearts.

2, Wang Wei's "Five Elegies for Prince Gongyi": Shooting the bear and dreaming of the emperor, the scale elephant asked who it was.

3, Du Mu "Early Autumn": Baht scales and wisps of snow, who feels old and old.

4, Zhang Bi's "Gap": The snake withered and the old woman cried tears, and the star Cao set the scales and the king's grandson.

5, Li Qian's "and the main secretary Wang Qi": The mirror is ugly, and the scale is light.

There are three pronunciations, which are chēng, chèn, and chèng.

The chēng compound words are: called, titled.

The chèn compound words are: well-proportioned, competent.

The chèng group words are: four names, weighing hammers.

It can be called [ kān chēng ].

It means: Kan: Yes. Called: called. It can be called, and it generally means admiration.

Sentence formation: This railway connects the north and the south and can be called the main artery of the motherland.

Title [ chēng wèi ].

People are given names because of their kinship and other mutual relationships, as well as because of their status, occupation, and so on. Such as: mothers, teachers, chiefs, etc.; Call; Tell; Statement.

Sentence formation: The title of father, child, brother, sister, etc., is not a simple honorary title, but a title of unusually solemn mutual obligations with complete certainty, the sum of which constitutes a substantial part of the social system of these peoples.

Symmetry [ yún chèn ]

The shape is uniform. Sentence formation: She has a well-proportioned figure and is generous.

Competent [ chèn zhí ].

talent commensurate with the position.

Sentence formation: He is a qualified and competent servant of the people.

四名 [ sì chèng ].

Symmetry; Harmonize.

Sentence formation: He has four figures.

Weighing hammer [ chèng chuí ].

A metal hammer used to balance the scales when weighing objects.

Sentence formation: The title of the article is a study on the development of male and female gametophytes in the weighing hammer tree.

The scale reads: chèng.

Scales are also called "weighing". Weighing apparatus. Or the instruments that measure the weight of unequal arms are called scales, or refer to the tie bar scale that weighs the weight of the object by looking at the scale, or the scale bar with a single finger.

During the Warring States period, there were unequal arm scales. When domestic pole scales began, there is no conclusive jury. The unearthed copper weighing rod of the king of Chu, with a scale of ten equal parts, is speculated to be a weighing instrument that appeared when transitioning from an equal-arm balance to a rod scale as a sign of hanging weights and weights in different parts during weighing.

After the Eastern Han Dynasty, it evolved into a scale that looked at the weight from the scale star.

Invent legends

Legend has it that Fan Li found in business that people buy and sell things in the market, and they use their eyes to estimate the pile, and it is difficult to achieve fair trade, so he came up with the idea of creating a tool to determine the weight of goods. One day, on the way home from business, Fan Li happened to see a farmer drawing water from a well, and the method was very ingenious: erect a high wooden stake by the well, and then tie a horizontal log to the top of the stake; One end of the horizontal wood hangs the barrel, and the other end is tied with a stone, which is light and labor-saving.

Fan Lidun was inspired, and hurried home to imitate: he used a thin, straight wooden stick, drilled a small hole, tied hemp rope to the small hole, and used his hands to carry it; One end of the fine wood is tied to a hanging tray to hold the goods, and the other end is tied to a pebble as a stone; The farther the pebbles are moved from the rope, the more cargo can be lifted. So he thought:

How much cargo hangs on one end and how far the pebbles have to move to maintain balance must be carved into the fine wood.

But what is the best thing to mark with? Fan Li thought hard for several months, but still couldn't get the point. One night, Fan Li went out for a small relief, and as soon as he looked up and saw the stars in the sky, he had a whim and decided to use the six stars of the Southern Dipper and the seven stars of the Big Dipper as marks, one star represents one or two weights, and thirteen stars represent one catty.

Since then, there has been a uniform measuring tool on the market - scales.

However, after a long time, Fan Li found that some businessmen with improper intentions were short of catties and two catties when selling things, and they deducted the people. He thought, how can the scales be improved to put an end to the evil deeds of the profiteers? Finally, he came up with the idea of changing the white woodcut black star to a mahogany inlaid metal star, and in addition to the six stars of the Southern Dipper and the seven stars of the Big Dipper, plus the three stars of Fu, Lu and Shou, with sixteen taels as a catty.

In this way, the scale is a measuring tool that has been passed down from generation to generation and has been followed for more than 2,000 years until today.

The above content refers to Encyclopedia-Scales.

1. There are two rows of scales on the scale rod, which correspond to the big and small lifts respectively.

2. Like this one, the above row corresponds to the big lift, and I call it the big lift scale.

3. The lower reed posture is a small scale.

4. Put something on the weighing hook or weighing pan, weigh the stone and hang it on the rod, lift the small lift, and start to move the weighing stone until it is balanced. Then go to the far left, and the 30kg is the range.