The principle and functional characteristics of intelligent weighing load cell
2022-02-08 15:54:27
The principle and functional characteristics of intelligent weighing load cell
The principle of intelligent load cell:
The principle of the load cell itself is a system. With the development of science and technology, the composition and research content of this system are constantly being updated. People put forward "sensor system" because the important trend in the development of sensing technology in the world is the development of intelligent load cell principle system. The so-called load cell system is simply the combination of sensor, computer and communication technology, and the intelligent load cell system and the micro sensor system are the two main research directions. The load cell focuses on how to give "intelligence" to the intelligent load cell system; the latter has the main goal of realizing tiny structures.
The intelligent load cell system is a modern comprehensive technology and a high-tech that is developing rapidly in today's world. The load cell has not yet formed a normative definition. In the early days of the load cell principle, people simply and mechanically emphasized the close integration of the sensor and the microprocessor in the process, and believed that "the sensitive element of the sensor and its signal conditioning circuit and the emblem processor are integrated on a chip to be a smart sensor" , obviously, this definition is too narrow.
With the development of sensor technology characterized by the development of sensor systems, load cells have gradually found that integrating sensors and microprocessors on a chip to form smart sensors is not always necessary in practice, and it is not economical; important The key is the intelligent combination of sensors (through signal conditioning circuits) and microprocessors to discrete computers. If there is not enough combination of "intelligence", it can only be said to be "sensor activation", and it cannot be said to be an intelligent sensor. Therefore, it is considered that "the so-called intelligent weighing sensor is a kind of sensor with a microprocessor and information Sensors with detection and information processing functions", "the combination of sensors (through signal conditioning circuits) and microprocessors, and a sensor with both information detection and information processing functions is the principle of intelligent load cells." The method breaks through the framework that the combination of the sensor and the microprocessor must be integrated on a chip in technology, and focuses on the combination of the two endowed with intelligence, so that the function of the principle system of the intelligent weighing sensor can be expanded from the function of "information detection" in the past. At the same time, it has the function of "information processing". The traditional concept holds that the instrument system is a device that performs information processing tasks, that is, extracts useful information from the input signal containing noise and displays it. That is to say. The "information processing" function belongs only to the "instrument". At present, the load cell compresses a large instrument system and sensitive components by using emblem machining and integrated circuit microelectronics technology, and then installs them together in a small shell to form an intelligent sensor system. It has been realized in the process, such as the CM06 monolithic integrated pressure sensor with a microprocessor (MCV) developed by Motorola.
