A complete set of weighing instrument details

Weighing instruments measure the mass of objects according to Hooke's law or the lever balance principle of force. Weighing instrument is mainly com

A complete set of weighing instrument details

Weighing instruments measure the mass of objects according to Hooke's law or the lever balance principle of force. Weighing instrument is mainly composed of three parts: bearing system (such as scale), force transmission system (such as lever force transmission system) and indicating system (such as dial). According to the structural principle, weighing instruments can be divided into three categories: mechanical scale, electronic scale and electromechanical combined scale.

Structure: load-bearing, force transmission and indication: industrial, agricultural and commercial inventions: 5000 BC components: load-bearing system, force transmission system and other application history, structure, load-bearing system, force transmission system, indication system, development trend, industry development, enterprise development, electronics and application scale are widely used in industrial, agricultural, commercial, scientific research and medical and health departments. Weighing instruments use Hooke's law or the lever balance principle of force to measure the mass of objects. Weighing instrument is mainly composed of three parts: bearing system (such as scale), force transmission system (such as lever force transmission system) and indicating system (such as dial). According to the structural principle, weighing instruments can be divided into three categories: mechanical scale, electronic scale and electromechanical combined scale. Mechanical scales are divided into lever scales and spring scales. According to the measurement methods, there are non-automatic scales and automatic scales. Its main varieties are scales, bar scales, box scales, platform scales, floor scales, floor scales, track scales, belt scales, postal scales, hanging scales, batching scales and bag scales. The focus of weighing instrument development is electronic weighing instrument. With the cooperation of modern technologies such as program control, group control, printing records and screen display, the weighing instrument has complete functions and higher efficiency. An instrument for measuring the mass of an object by measuring its weight (gravity). Some weighing instruments are customarily called scales. Weighing instruments are widely used in industry, agriculture, commerce, scientific research, medical and health departments. Weighing Instruments China's weighing instrument industry is a traditional industry and an important basic industry with a long history of development. After the reform and opening up, China's weighing instrument industry has developed rapidly, and its management system, industry structure, product structure, technical level and position in the national economy have changed greatly. By the end of 20 1 1, there were 142 weighing instrument manufacturing enterprises above designated size (annual income of 20 million yuan) in China, including 83 private enterprises and 32 foreign-funded enterprises. 20 1 1 year achieved sales revenue of1607.2 billion yuan, up 29.29% year-on-year; The total profit was 654.38+52.7 million yuan, a year-on-year increase of 32. 13%. In terms of technical development, China has been focusing on mechanical weighing instruments for many years. In 1980s, the use of electronic weighing instruments was expanded and large automatic weighing instruments were developed. Now China has been able to independently design and manufacture all kinds of electronic weighing instruments with high precision, fast operation and accurate measurement. Due to the rapid development of science and technology and the improvement of application level, the digitalization, integration, networking and intelligence of weighing instruments will become the development direction and focus of the world weighing instrument industry. The low-end product market of weighing instrument manufacturing industry in China is saturated, but in the aspect of applying advanced weighing instruments with high technology content, China is still in the stage of relying on imports to solve the supply, so the future expansion direction of the industry is mainly concentrated in the high-end product market with high technology content. Accordingly, the competition among domestic weighing instrument manufacturers will be more focused on the technical contest. At the same time, with the continuous entry of multinational enterprises, domestic enterprises will also face more severe challenges, and the competition in the domestic weighing instrument manufacturing industry will become more intense. 20 1 1-2020 is an important period for China to implement the sustainable development strategy of national economy, promote the development of circular economy, take the road of new industrialization and lay the foundation for building a resource-saving and environment-friendly society. During the "Twelfth Five-Year Plan" period, China's national economy will continue to develop, driving the development of logistics, machinery, chemical industry, ports and other industries, which will bring good opportunities for the development of weighing instrument manufacturing. Weighing instrument is an important part of measuring instruments. In the past, people called measurement' weights and measures'. The so-called degree refers to measuring the length of an object with a ruler (such as ancient bone ruler, tooth ruler and bamboo ruler, wooden ruler, tape measure, steel ruler, etc.). ); The so-called quantity refers to measuring the volume of an object with containers (such as ancient closing, lifting, bucket, welcoming bucket and later measuring cups); The so-called scale refers to measuring the weight of an object. Balance should start from the end of primitive society. According to historical records, it has been more than 4000 years since. At that time, there was commodity exchange, but the measurement method was based on seeing and touching. As an instrument for measuring weight-weighing instrument, it first appeared in China Xia Dynasty. During the Spring and Autumn Period and the Warring States Period, I mastered the lever principle. In the mid-Warring States period and the mid-Chu period, scales and weights were widely used to weigh gold, but the measurement standards were different and confusing for a long time. It was not until Qin unified the world that the Shang Yang Reform was implemented in the 26th year of Qin Shihuang (22 1 year BC) that the measurement standards were unified. In Song Dynasty, a scale with the precision of 1 cm (40mg) appeared, which indicated that the weighing instruments at that time had a considerable technical level. Stock weighing instrument weighing instrument is produced and developed in the process of commodity exchange. The earliest weighing instrument used by human beings was the original balance. About 5000 BC, Egypt used the equal arm balance (Figure 1). It sets a point in the middle of a simple lever, places the measured object on the disc (hook) at one end (right end in the figure) of the lever, and places the objects with the same shape and mass on the disc at the other end (left end in the figure) one by one. When the device is in a state of balance, it means that the masses of both sides are equal, and the mass of the measured object at the right end can be estimated by the number of objects at the left end. The system of weights and measures in China began with the "Yellow Bell" law in 2500 BC. According to records, "the degree is based on the length of the yellow bell, the quantity is based on the relationship of the yellow bell, and the weight of the yellow bell is balanced." The yellow bell has been lost. In the Xia Dynasty, China began to use scales as weighing instruments. Strength is equal to weight, and balance refers to lever. There is a small hole in the middle of the lever as a fulcrum, and hooks are hung at both ends of the lever, and the weighed objects and weights are hung at the same time. Each trade-off has a set of weights. The weights on the right are increased one by one to weigh different weights. Wooden scales appeared in the Han Dynasty and have been used for more than 2000 years since then. /kloc-in the 8th century, J. Blake, a Scottish chemist, first applied knives and tool holders to the balance, thus making an accurate weighing instrument. 183 1 year, American T. fairbanks invented the platform scale, which integrated the advantages of unequal-arm bar scale and balance, and made various mechanical weighing instruments tend to be perfect. In the mid-20th century, a simple electronic weighing instrument appeared, which made the weighing instrument enter the electronic age. The combination of microprocessor and weighing sensor has caused a revolution in the field of weighing. Since then, the microprocessor has been widely used in weighing, especially in dynamic weighing, which basically replaced the original complex computing system. With the continuous development of microelectronics technology and the appearance of large-scale and ultra-large-scale integrated circuits, the functions of weighing and process control can be combined into the same electronic unit. In 1980s, electronic weighing instruments have spread all over the fields from micro-weighing to large-scale professional weighing, and the scales have developed to thousands of specifications, with the static accuracy generally above 0. 1% and the dynamic accuracy generally above 1% ~ 0.2%. There are about 250 weighing instrument factories in China, which can mass-produce large-scale special weighing instruments of 19 categories, 150 varieties and more than 500 specifications. The production of mechanical weighing instruments has reached a considerable scale, and the annual output of electronic weighing instruments has reached tens of thousands. Classification of modern weighing instruments According to the structural principle, weighing instruments can be divided into three categories: mechanical scales, electronic scales and electromechanical combined scales. Mechanical scales can also be divided into lever scales (including equal-arm lever scales, namely narrow-sense scales and unequal-arm lever scales) and spring scales. Weighing instruments can also be divided into non-automatic weighing instruments and automatic weighing instruments according to measurement methods. The main types of weighing instruments are balance, pole scale, box scale, platform scale, floor scale, floor scale, track scale, loader scale, belt scale, postal scale, hanging scale, batching scale and bagging scale. Structural weighing instrument is mainly composed of three parts: bearing system, force transmission system and indicating system. The structure of the bearing system of high-precision electronic platform scale depends on the shape of the object. Platform scales and ground scales are generally equipped with flat bearing mechanisms; The scale for weighing objects is equipped with a special load-bearing mechanism, which can shorten the weighing time and reduce heavy operation. For example, a dustpan scale is installed on the scale to measure granular materials, and a special container is installed on the scale to measure liquid. In addition, the forms of load-bearing mechanism include track of track scale, conveyor belt of belt scale, hook of hanging scale, etc. Although the structure of the load-bearing system is different, the function is the same. The force transmission system of electronic balance is the key component to determine the measuring performance of weighing instrument. Usually, lever force transmission system and deformation force transmission system are adopted. The lever force transmission system of explosion-proof electronic platform scale is mainly composed of bearing lever, force transmission lever, supporting parts and connecting parts such as cutter, cutter bearing, hook and ring. In fig. 2, the load-bearing rods 1 and 2 bear the load g transmitted by the load-bearing mechanism t, and the dowel 3 transmits the load from the load-bearing rod to the indicating mechanism-measuring rod 4. In the deformation force transmission system, spring is the earliest deformation force transmission mechanism used by people. The weight of the spring scale can range from 1mg to dozens of tons. The springs used are timely steel wire spring, flat spiral spring, spiral spring and disc spring. The spring scale is greatly influenced by geographical location, temperature and other factors, and its measurement accuracy is low. In order to obtain higher accuracy, people have developed various weighing sensors, such as resistance strain sensor, capacitance sensor, piezomagnetic sensor and vibrating wire sensor, among which resistance strain sensor is the most widely used. Indicating system The indicating system of mechanical scale mainly adopts measuring rod or dial with scale mark. The former uses weights, weights and weights to balance the measuring lever and obtain readings; The latter indicates the measurement result by the rotation of the pointer along a sector or circular dial. The indication system of electronic scale is weighing display, which includes digital display and analog scale display. The development trend of high-precision electronic platform scale The focus of weighing instrument development is electronic weighing instrument. The combination of modern electronic technologies, such as program control, group control, telex printing and screen display, will make the weighing instrument fully functional and more efficient. Measuring equipment using radioactive and hydraulic transmission ratio principles will be limited. In the combination of weighing and production process, the electromechanical combined weighing instrument has good economic effect, and its application scope is expected to be further expanded. While having the basic metrological performance, the commercial value and reliability requirements of weighing instruments will be gradually improved. When measuring goods with high value, high measurement accuracy is required; When measuring low-value goods, the measurement efficiency is mainly considered. This will promote the development of weighing instruments in a diversified and multi-level direction. Is the data editing year of weighing instrument company above waterproof electronic scale 1988 or 2008? There are platform scales, platform scales, platform scales, hanging scales, flat scales and truck scales. There are electronic weighing scales, high-precision electronic scales, pricing scales, counting scales, waterproof scales, anti-corrosion scales, livestock scales, hydraulic forklift scales, steel cylinder scales and so on. Industry Development The weighing instrument industry is a traditional industry and an important basic industry with a long history of development. The weighing instrument industry has developed rapidly, and its management system, industry structure, product structure and technical level have changed greatly in the national economy. For many years, China mainly used mechanical weighing instruments. In 1980s, the use of electronic weighing instruments was expanded and large automatic weighing instruments were developed. China has the ability to independently design and manufacture all kinds of electronic weighing instruments with high precision, fast operation and accurate measurement. June 2007 +0- 1 1, the total industrial output value of China weighing instrument manufacturing industry reached 5,604.832 million yuan, up 27.64% year-on-year; Accumulated product sales revenue was 5,385,955,000 yuan, a year-on-year increase of 22.39%; The accumulated profit was 365,438+02,65,438+065,438+04,000 yuan, up 20.44% year-on-year. From June 5438 to February 2008, the total industrial output value of China weighing instrument manufacturing industry was 1 072,21.2 million yuan, up 39.66% year-on-year. Accumulated product sales revenue of 1, 02 1, 253,000 yuan, up 33.18% year-on-year; The accumulated total profit was 48.25 million yuan, a year-on-year increase of 96.47%. With the rapid development of science and technology and the improvement of application level, the digitalization, integration, networking and intelligence of weighing instruments have become the development direction of the world weighing instrument industry. China uses advanced weighing instruments with high-tech content, and it is still in the stage of relying on imports to solve the supply. Therefore, in the field of high-tech weighing instruments, Chinese weighing instrument manufacturers have huge development space. In addition, with the continuous growth of domestic consumption level and industrial economy, the domestic demand for weighing instruments will further increase. Enterprises develop weighing instruments, which are used to weigh objects, such as scales and scales. With the continuous expansion of business and the increase of customers, it is very difficult for salespeople to manage customers. They say it's acceptable to manage 30 customers with spreadsheets, but they don't know what to do if they want to manage nearly 300 customers per capita. At the same time, for the boss of the enterprise, the flow of sales staff and the management of the sales process have encountered great trouble. In order to improve the company's sales performance and facilitate the management of customers by sales staff and managers, customers are the most valuable resources of enterprises, and the customer resources in the weighing instrument industry are highly concentrated, so the management of customer resources is particularly important for energy-saving equipment. However, with the increasing number of sales outlets in the company, customer information is often scattered in various branches, and the management of customer resources is limited to the relevant salespeople, institutions and agencies, headquarters and institutions or even two salespeople in the same institution. Customer information is usually not shared. The biggest headache is that once the sales staff leave, the company will lose a considerable number of customers. In the long run, the consequences will be worrying. Therefore, we should establish a scientific customer relationship management system and build an efficient and lasting platform for customers to enjoy resources. By applying CRM system, weighing enterprises can establish a perfect, efficient, flexible and integrated marketing information platform, achieve the following goals, help enterprises gain advantages in the fierce market competition: > 1, comprehensively and effectively manage customer information resources and market competition information; & gt2. Grasp every detail such as opportunity clue, procurement, sales, contract, cost, service and care; Direct-looking electronic hanging scale > 3. Analyze customers, sales and accounts receivable from all angles to provide basis for decision-making; & gt4. The brand-new service care management concept runs through pre-sale, in-sale and after-sale; & gt5. All employees realize collaborative work, information release and centralized management of documents > 6. Customer relationship management system can make sales staff manage customers conveniently and quickly, record customer information in detail, and avoid the trouble of consulting traditional notebooks every day; The system will remind the sales staff to do what they should do today every day; At the same time, it is convenient to determine the customer type, facilitate the tracking of important customers and improve work efficiency. & gt7. The sales staff management system can record the contact business records and event records of sales staff, and record the whole sales process in detail, so that enterprises can master all the information of customers, and at the same time, leaders can guide the sales process of sales staff at any time, adjust sales in time and promote sales. The unified management of sales staff in all sales outlets is realized, which is convenient for leaders to conduct employee assessment, and also ensures that customer information will not be lost because employees leave their jobs. & gt8. The customer service management system can record and track the work of the customer service department in the whole process, and the customer service personnel can realize the task transfer and collaboration through the system. Through this system, customer service departments around the company can coordinate their work tasks organically, and even in different places, they can accept tasks and achieve coordination in the shortest time, thus realizing the promise of "service in place within 24 hours". Electronic scale is the main weighing equipment, which is used to measure bulk goods in chemical industry, commercial concrete, logistics, ports, docks, factories, mines and enterprises. Before 1980s, the common truck scale was generally a mechanical truck scale constructed purely by the lever principle, also known as mechanical weighbridge. SCS all-digital electronic truck scale is an all-electronic modular truck scale designed with internationally advanced digital weighing sensors and digital weighing displays. Digital weighing sensor adopts digital technology, which can automatically compensate temperature coefficient, nonlinearity, hysteresis and creep. The electronic ground scale adopts a newly designed steel structure carrier, which is simple, light and easy to carry. The electronic weighing instrument can be directly laid on the concrete floor, and is equipped with a movable ramp (optional) to make full use of the space. Equipped with four high-precision shear beam weighing sensors and intelligent weighing display instrument, the weighing system is composed. Steel-concrete platform (SCS) has fundamentally solved the problems of scale corrosion, reduced use accuracy and shortened service life caused by rain, sun exposure, acid and alkali corrosion and structural expansion and contraction.