The status of industrial instrumentation in industrial development is self-evident. In recent years, with the development of electronic technology and computer technology, the functions of industrial instruments and meters have become more abundant, and their reliability and lifespan have also been improved to a certain extent. Today, its development has shown new bright spots.

1. System function integration: Closer integration with computers, power electronic devices and high-voltage control, and simultaneous use of continuous control and intermittent control.

Second, the emergence of a new fieldbus structure: the self-diagnostic function of the instrument is expanded, and it is easy to maintain, the connection of the system is more reliable and simpler, so the installation cost is greatly reduced, and the control scale is variable.

Third, the addition of new smart modules: new sensors such as optical fiber sensors, polymer sensors and biosensors are constantly appearing and will develop rapidly.

Among them, the transmitter adopts high-performance microprocessor and communication technology to realize digitization, communication and intelligence, improve the range ratio, have temperature and pressure compensation, realize self-diagnosis, remote configuration, remote control adjustment of zero position and measurement range And the set point of PID control, and apply dot matrix light beam display technology to display the measured variable and set value, etc.

Testing instruments will continue to adopt new sensing technology and microelectronics technology, and develop towards digitalization, intelligence, resistance to special media, special environments, ability to measure extreme parameters, non-contact measurement, and long life. With the development of intermittent process control, there will be new developments in on-line detection of various mechanical quantities, state quantities, chemical composition quantities and other new measuring instruments.