Analyze the Advantages and Trends of the Progress of Coal Quality Analysis Instruments

The development characteristics of modern meters With the rapid development of computers, microelectronics and other technologies, the development of various types of coal quality instruments and meters is extremely rapid. Looking at the development of coal analysis instruments at home and abroad, it has the following characteristics:

(1) The technical indicators of coal quality analysis equipment have been continuously improved. Faster, higher, and stronger are the constant pursuit of instruments and meters. In terms of the voltage measurement control range of instruments and meters, the monitoring and control range of modern coal quality analytical instruments can reach nanovolts to 1 million volts. In terms of measurement accuracy, industrial parameter measurements have been improved to more than 0.02, and aerospace parameter measurements are even better. Above 0.05, the accuracy of measurement and the precision achieved by scientific instruments are advancing with the times.

In terms of improving the reliability of coal quality inspection instrumentation, the general requirement is 250,000 hours, and the higher ones are required to be reliable for 250,000 hours. From the above data, it can be seen that the technical indicators of coal analysis equipment instrumentation are being continuously improved.

(2) High-tech is constantly being used to improve its workmanship, and it must first sharpen its tools. New scientific research results and the adoption of a large number of high-tech technologies have made modern instruments and meters not only themselves in the ranks of high-tech products, but also make use of new principles and concepts. New devices and systems for the integration of new scientific and technological achievements, new technologies, new materials, and new processes are also emerging.

(3) The scope of measurement and control has been extended to three-dimensional and globalized, and the control method has been systematically and network-based. Along with the measurement and control of measurement and control instruments and meters, the area has been continuously developed to three-dimensional, global, and even planetary, with instrumentation and measurement and control devices Instead of being in the form of a single device, it is moving towards the systematization and networking of measurement and control devices. For example, in the measurement and control systems of some large-scale hydropower stations, there are as many as thousands of sensors that only measure the safety of dams. In addition, the detection and control points for the state and water level of each generator unit are more than 10,000, and it is necessary to ensure the For normal power generation and power transmission, the measurement and control devices at each measurement and control point must form a networked structure and an organic measurement and control network system. For a sophisticated field such as a satellite monitoring system, the number of sensors and the configuration of the measurement and control device are more systematic and networked.

(4) The software function of hardware functions and the development of functions towards the direction of intelligence With the development of microelectronics technology, microprocessors have become faster and faster, and their prices are getting lower and lower. Currently, they have been widely used in instrumentation. This makes some real-time requirements very high. The functions that can only be completed by the hardware can now be achieved through software methods. Even many of the problems that were originally difficult to solve with a hardware circuit or that cannot be solved at all can also be solved with software technology. In particular, the development of digital signal processing technology and the widespread adoption of high-speed digital signal processors have greatly enhanced the signal processing capabilities of the instrument.

With the development of micro-control technology and embedded technology, and the adoption of information technologies such as a large number of new sensors, large-scale and ultra-large-scale integrated circuits, computers, and expert systems in measurement and control instrumentation, instrumentation continues to be miniaturized and intelligent. The direction of development, for example, with the development of various field-programmable devices and on-line programming techniques, the parameters and even the structure of the instrument and meter do not have to be determined at design time, but can be placed and dynamically modified in real-time on the field where the instrument is used. That is, coal quality instrumentation is no longer a single function, the structure is fixed, but more and more show flexibility and intelligence, adaptability will be stronger and stronger, and functions are more and more abundant. From the current chip-type instrumentation, chip labs, etc., the miniaturization and intelligence of a single device will be a long-term trend.

(5) Generalization of Hardware Platforms Modern instrumentation is increasingly emphasizing the role of software. On a common hardware platform, various software or functions are used to extend or compose instruments or systems of various functions.

Usually an instrument can be roughly decomposed into three components: data acquisition; data analysis and processing; storage, display, or output. The traditional instruments are built by the manufacturer according to the different functions of the instrument in a fixed manner. The structure is fixed and the function is only one or several kinds. Modern and increasing instruments consist of one or more of the above functions. The common hardware module consists of different softwares that can be used to compose instruments of different functions.

(6) Micro, portable, integrated, and personalized instrumentation are emerging in large-scale development of integrated processes, making integrated circuits more and more dense, smaller and smaller, more and more complex internal structures, and more functional The more powerful it is, the more integrated the instrumentation is. In addition, the modular functional hardware makes instrumentation more flexible, and the composition of the instrument hardware is more concise, and the functionality can be expanded flexibly as needed.