Recently, the author has participated in the drafting and review of national standards and verification regulations for weighing instruments on multiple occasions. During technical exchanges with users from various industries, it was found that many non-weighing instrument manufacturers, even peers in the weighing instrument industry and weighing instrument metrology technical institutions, have put forward different views on the definition of the configuration range of weighing instruments. Even some manufacturers outside the weighing instrument industry have raised objections to the issue of the classification of national standards for weighing instrument products. Many industry players believe that only load cells, load-bearing devices and weighing instruments can be classified as weighing instruments. Without this standard configuration, they cannot be called weighing instruments. I think this view is at least incomplete.

First, let's discuss the issue of the attribution of national standards for weighing instruments:

Weighing instruments in China belong to specific measuring instruments and have specific verification methods and judgment principles. Throughout human history

The unified management of weights and measures has become an indisputable fact. According to the product classification of China's national economic industrial chain, it is called

The measured products belong to the category of weighing instruments. According to the original standards and procedures formulated by the General Administration of Quality Supervision, Inspection and Quarantine and the Standardization Administration of the People's Republic of China

Then, all standards for weighing products, regardless of which industry they belong to, should be under the jurisdiction of the National Technical Committee for Standardization of Weighing Instruments

All weighing instruments related to weighing are under the jurisdiction of the National Technical Committee for Weighing Instruments and Metrology. At present, our country

All the national standards related to weighing instruments that have come into effect are under the jurisdiction of the superior administrative department in charge of national weighing instrument standards

The Light Industry Council has put forward that this is beyond reproach.

In fact, all the current national standards related to weighing instruments cover almost all industries of the national economy. It cannot be said that the national standards for weighing products applied in a certain industry must be under the jurisdiction of the standardization technical committee of that industry. If it is necessary to follow the above statement that any product standard used in a certain industry must be under the jurisdiction of that industry, then at present, almost all the national standards for weighing related products cannot be under the jurisdiction of the Light Industry Federation. Because by this logic, except for a small number of self-used weighing instruments in the light industry, almost all weighing related products are used in various industries. Then, should the vast majority of national standards related to weighing products be placed under the jurisdiction of the standardization technical committees of various industries on their own? For instance, should the national standard for rail scales used for weighing railway vehicles be under the jurisdiction of the Standardization Technical Committee of the Ministry of Railways? The product standards for online ladle weighing, online coil weighing, and blast furnace batching weighing control equipment used in the metallurgical industry should all be under the jurisdiction of the Standardization Technical Committee of the Ministry of Metallurgy? Obviously, this line of thinking is contrary to the relevant requirements of our country.

The following elaborates on the continuous update of weighing related products along with the development of social economy and technology from several different aspects

The change in the concept of "weighing instruments".

Ii. The Renewal of Weighing Instrument Concepts: The Evolution from Classical Weighing Instruments to Modern Weighing Instruments

It is well known that in the traditional sense, a weighing instrument refers to a measuring device that determines the mass of an object by the force of gravity acting on it. Weighing instruments can also be used to determine other quantities, sizes, parameters or characteristics related to the mass being measured.

According to their operation methods, weighing instruments can be classified into automatic weighing instruments or non-automatic weighing instruments. A weighing system is a combination of weighing instruments and other equipment, equipped with different control or management software to perform specific weighing processes.

People's understanding of weighing instruments changes along with the development of social science and technology. In the past, people would simply use a single machine

Products with weighing functions are called weighing instruments. For example, the earliest wooden poles equipped with scale rods and weights for simple weighing functions

Scale However, with the demands of the market and the development of electronic technology, electronic pricing scales with weighing and pricing functions have emerged.

With the development of automatic control technology, it has been further expanded and extended to not only have weighing functions but also quantitative control feeding and quantification

Automatic packaging machine products with control of material discharge and automatic packaging functions; With the development of computer network technology, the emergence of

Weighing system equipment with batching control, network remote operation and control; Due to the special environment in which weighing instruments are used, such as flammable,

The demand for explosive environments has led to the emergence of numerous explosion-proof weighing system devices that meet the needs of various explosion-proof scenarios.

The products of "modern weighing instruments" are no longer merely those with weighing functions as they were decades ago. So, simply thinking it's just

The notion that only when there are sensors and weighing instruments can they be called weighing instruments, and other related components and functions cannot be regarded as part of a weighing instrument

It's already an outdated and outdated concept. At present, due to the insufficient understanding of the technological development and concepts of products in China's weighing instrument industry by many departments, certain misunderstandings may occur. This can only indicate that the relevant publicity efforts for measurement products in the weighing field in China are not strong enough at present.

Iii. From "Measuring Weighing Instruments" to "Controlling Weighing Instruments" - The Misunderstanding that control functions do not fall under the category of weighing instruments

Among various weighing instruments, especially automatic weighing instruments, with the advancement of technology, in addition to having the general weighing and measurement functions, they also possess dynamic control functions. In the theory of automatic control systems, the development of control systems has evolved from open-loop control to closed-loop control systems, which has also led to the renewal of the concept of weighing instruments.