The biggest difference between weighing scale and the balance is that weighing scale measures the weight of an object, while the balance measures the mass of the object. Balance and scale are almost the same in function, both of which are scales for weighing, but we can find the difference from the details.
Scale is a weighing instrument, which uses Hooke's law or the lever balance principle of force to measure the weight of an object. The scale is mainly composed of three parts: bearing system (such as scale plate and scale body), force transmission and conversion system (such as lever force transmission system and sensor) and indicating system (such as dial and electronic display instrument). According to the structural principle, it can be divided into three categories: mechanical scale, electronic scale and electromechanical combination scale.
The balance is an equal arm lever and an instrument to measure the quality of an object. It is made according to the lever principle. There are two small plates at both ends of the lever, one for putting heavy objects and the other for weighing objects. The center of the lever is equipped with a pointer. When the two ends are balanced, the masses (weights) of the two ends are equal. Modern scales are more and more accurate, more sensitive and more and more kinds. As we all know, there are ordinary balance, analytical balance, constant analytical balance, micro analytical balance, semi-micro analytical balance and so on.
Weight is caused by the attraction of the earth to objects. Because the altitude is different around the world, the acceleration of gravity is different, and the attraction of the earth to objects is different, so objects with the same mass may have different weights in different places. Therefore, the weight of the balance is constant, but the weight of the same object may change under different circumstances. In addition to electronic scales and spring scales, the weight standard of scales is weight, and the quality standard of balances is weight. In addition, the scale is the lever principle of unequal arm length, and the balance is the lever principle of equal arm length.
The difference between electronic scales and electronic scales usually we will distinguish electronic scales from electronic scales with accuracy. We generally call it a balance with an accuracy above1100000, for example, the maximum weighing100g, with an accuracy of 0.00 1 g.
The structure of electronic balance is different from that of electronic scale sensor, and the electronic balance is more complicated, which also causes the accuracy of electronic balance to be higher than that of electronic scale.
High-precision electronic balance generally adopts electromagnetic balance sensor, which has high sensitivity and good stability, and the accuracy can reach above 0. 1mg. Some electronic balances also use ceramic capacitance sensors, and the accuracy can reach 1mg.
Electronic scales generally use strain sensors, and the accuracy is generally 1/3000, that is to say, the whole process is 3000g, and the accuracy can reach1g. With the improvement of sensor technology and software level, the accuracy of strain sensor can reach1100000, and it will also be sold as an electronic balance.
The verification fees and procedures of electronic balance and electronic scale are different. Electronic scales are priced at 350-420 yuan per set according to different specifications. Electronic scales only need 15-20 yuan/set. E=d is the electronic scale when checking, but E is not equal to D, generally it is an electronic scale.
The strain sensor is low in cost, light in weight and relatively cheap, and its theoretical service life is 6,543,800 times. It is difficult to repair after damage, and it can only be replaced. The electromagnetic balance sensor is heavier and more durable, and some of its accessories can be replaced, but the maintenance cost is also high.
Top Ten Electronic Platform Scale Brand Competition Dolis.
(0 10-80426300, founded in 1946, one of the top ten German electronic scales/balances brands, and a world-famous process weighing technology supplier, Sai Dolis Industrial Weighing Equipment (Beijing) Co., Ltd.
Mettler toledo
(400-8878788, Swiss precision instrument manufacturer, world-leading precision instrument and weighing instrument manufacturer, mettler toledo Instruments (Shanghai) Co., Ltd..
Xiangshan Morimatsu
(400-888-8845), which owns many famous weighing instruments brands such as Xiangshan/Camry/Kangmei Kammoy/ Jinye, is a leading/large household electronic weighing instrument supplier in China, and Guangdong Xiangshan Weighing Instrument Group Co., Ltd.
EXCELL British exhibition
(400-820- 1366, top ten electronic weighing brands, vice chairman of China Weighing Apparatus Association, professional weighing apparatus company integrating R&D/ manufacturing and sales, Shanghai Zhan Ying Electromechanical Enterprise Co., Ltd.
unseal
(400-7 1 12660, an earlier domestic enterprise engaged in R&D and producing electronic weighing instruments, a famous trademark in Zhejiang Province, top ten brands of electronic balance, and a well-known weighing instrument manufacturer Kaifeng Group Co., Ltd.)
Tanita Berida
(4000-680-980, 1923 was founded in Japan, and it is one of the top ten health scale brands, engaged in a series of products such as body composition analyzer/body fat measuring instrument/health scale/pedometer/timer. And Belida (Shanghai) Trading Co., Ltd.
Ohaus
(4008-2 17- 188, 1907 started in the United States, and it is one of the top ten electronic weighing brands. It is an excellent manufacturer specializing in the development and manufacture of scales and various weighing instruments/meters, Orhaus Instruments (Shanghai) Co., Ltd.
Hua Yao Hua Yao
(400- 168-3 190, Shanghai Hua Yao Weighing System Co., Ltd. was established in 1992, with a famous trademark. It is a high-tech enterprise specializing in R&D/production and sales of electronic weighing instruments.
Tomoto
(02 1-34073556, a well-known brand of electronic pricing scale, with strong technical development and innovation ability, focusing on the production and sales of R&D and electronic weighing instruments, Shanghai Yousheng Weighing Instrument Co., Ltd.
too many
(0579-87443280, founded in 1985, China Weighing Apparatus Association, a high-tech enterprise specializing in the research and development of electronic weighing apparatus/mechanical weighing apparatus and various weighing apparatus accessories, Zhejiang Wang Ba Weighing Apparatus Co., Ltd.