The stability, reliability and adaptability requirements of future instrument products will continue to increase

Nowadays, the trends in the development of instrumentation and measurement control are: the stability, reliability, and adaptability requirements of the product are continuously increasing; the technical indicators and functions are continuously improving; the new scientific research results are used first; high-tech is used in large quantities; The miniaturization and intelligentization of measurement and control units are becoming more and more obvious; the instruments and measurement and control units are required to be used independently, embedded, and networked; the measurement and control scope of the instrument is extended to three-dimensional and global; the measurement and control functions are systematic and networked; portable A large number of hand-held and even personalized instruments have been developed.

The technical features are: integrating various new technologies, based on the research of related types of sensors, components, materials, and technologies of instrumentation, innovating the development of new weak signal sensitivity, sensing, detection, and fusion technologies. Atomic and molecular level detection Technology, complex composition of sample analysis technology, life science in situ, in place, real-time, online, high sensitivity, high throughput, high selectivity detection technology, create all kinds of new detection instrumentation; combined system theory, control On the basis of the development of on-line analysis and control of industrial automation measurement and control, in-situ analysis and control, high reliability, high performance, and high adaptability, innovative development of industrial automation instrumentation and control systems, combined with life sciences, The development of human sciences is to develop medical instruments based on the development of health monitoring, early diagnosis and treatment, non-destructive diagnosis, non-invasive and low-invasive diagnosis and treatment, and precise positioning of treatment techniques for medical diagnosis and treatment; and to track new subject areas and various application fields at the same time. Development, development of a variety of special, fast, automated detection and measurement technology and special instrument Instruments.

Automation instrumentation and control systems and scientific instruments occupy half of the total instrumentation and measurement control in both the output value and the market, and are the two pillars of instrumentation and measurement control systems. Due to limited speaking time, let us focus our attention on the future development of these two types of instruments.

The future development of automated instrumentation and control systems should focus on:

1, functional safety

The important development of functional safety in recent years is that a large number of functional safety-certified instruments have been introduced to the market. In order to gain a favorable position in the competition, almost all instrument manufacturers will conduct functional safety research.

2. Automation Instrumentation and Enterprise Informatization

Automation instrumentation technology includes information acquisition, processing, and applications. "Enterprise informatization" is actually the integration and integration of enterprise information. To do this, it is necessary to "simplify", "rule" and "abstract" information with automated and systematic information models in order to make the most effective use of information. This is a basic work in the field of automation instrumentation, and it is also an important means to unify information expression.

3, wireless communication

The rapid development of industrial wireless communication technology is a prominent highlight in the field of automated instrumentation. Its characteristics are: diversification of technical solutions, rapid increase in participants, and establishment of a professional organization. The introduction of a variety of wireless demonstration systems and measurement instrument prototypes will become the focus of major automation instrument exhibitions around the world.

4. Integration of Global Information and Life Cycle Information of Automatic Instrument Engineering Projects

This is the full interoperability of an automated instrumentation system. Interoperability is hierarchical, and implementation requires a long process. In recent years, the publication of the IEC62424 standard, the expansion of the InTools tool software functions, and the introduction of interoperable standards for the control system and field instrumentation layer are an important landmark in the development.

5, system maintenance and instrument diagnosis

System maintenance and instrument diagnostics are increasingly concerned by users, manufacturers, and researchers.

It is divided into four levels: diagnosis of production processes, diagnosis of production equipment, diagnosis of automated control systems, and diagnosis of field instruments.

The diagnosis of production processes does not, in principle, belong to the category of automation instruments, but the exchange of diagnostic information involves automated instrumentation systems. For the monitoring of production equipment, diagnostic instrumentation systems have introduced new products. The diagnosis of the automatic control system is usually a module or a function of the equipment management software in the control system, which is responsible for the real-time diagnosis and predictive maintenance of the control system itself and the field instruments. Field instrumentation is difficult to diagnose. The maintenance period is determined by the loss of the smart meter or fixed time.

6\Verification

Standardization has played an important role in the history of automated instrument development. In the future, it will also play a major role in China's instrument products catching up with the world. In the new economic era, there are a large number of information interface standards. Its common feature is that there are many standardized solutions at the same level of technology. Now we can set standards for high-tech new products and completely change the concept of standardization.

7, control network

In the next few years, network control measurement and network instrumentation will be the focus of automation instrument development. The direction of development will be to significantly increase the speed, simplify the complexity of installation and commissioning, expand wireless capabilities, and develop network technologies.

In the future, we should pay attention to the following aspects:

1) Precision testing equipment

The current era has entered a new phase of molecular and atomic analysis and detection. The development of micro-nano technology directly promotes the rapid development of precision detection instruments. Of particular concern is MEMS/NEMS (micro-motor system/nano-electromechanical system) test instruments, scanning probe microscopes represented by scanning tunneling microscopes and atomic force microscopes, and the development of a series of SPMs based on the fundamentals of STM/AFM. New developments in magnetic microscopy, electrostatic force microscopy and other instruments.

2) Analytical instruments

Optical Trapping is a new type of optical micro manipulation technique. It focuses a beam of light with a high numerical aperture objective into a micron-sized spot, forming a gradient to capture and move tiny particles. This technique is widely used in various microscopic fields.

Microchromatography will soon develop. C2V has introduced the world's smallest and fastest handheld gas chromatograph, with a mainframe size of only 124 x 84 x 60 mm and a column module size of 60 x 100 x 12.5 mm. The main components of natural gas can be completed within 10-30 seconds. The full analysis.

The miniaturization of NMR has made great progress in recent years. Neuchatel University in Switzerland has successfully developed a radio frequency plane micro-coil with a high quality factor that can be used in the NMR full-analysis system of microfluidic chips. The required sample volume is only 1-100 nanoliters. And in a few seconds to get the required signal to noise ratio. Miniaturization of NMR should be a development direction worthy of attention. ,

Optical frequency comb spectroscopy (Opticalfrequencycombspectroscopy) is another important instrument technology developed recently. Using this technology, many different gases can be detected with very high sensitivity in a very short time, and it will play a role in clinical diagnosis. Important role.

3) Spectral Analysis Instruments

In the past, spectral analysis instruments were mainly used in basic discipline research, mineral analysis, and product quality monitoring. It is worth noting that a new development trend is that due to the urgent needs of human survival and development, and at the same time new technologies and achievements in the development of computer hardware and software, microelectronics, computational mathematics, and micro devices have enabled spectroscopic techniques and instruments to be applied to biology, the environment, and medical care. The rapid development of other areas has led to significant development in terms of theoretical research, technological development, and instrumental innovation. It will also grow faster in the future.

4) Photon Imaging Instruments

A new discipline that integrates photonics and life sciences - biomedical photonics has grown rapidly with the development of laser, electronics, spectroscopy, microscopy, and optical fiber technologies, and many new scientific instruments have emerged. The application of these instruments has not only enriched people's understanding of the mechanism of interaction between light and biological tissue, but also promoted the invention of various new biological research instruments and medical diagnostic instruments. Photon imaging technology mainly includes diffuse optical tomography, fluorescence imaging, coherence tomography, and photoacoustic imaging. The Optical Coherent Tomography (OCT) combines confocal microscopy and heterodyne detection of low-coherence light. It is a two-dimensional or three-dimensional imaging technique that extends from one-dimensional optical low-coherence reflectometry.