The development trend of vortex flowmeter.

1. Develop towards high performance and high accuracy.

The emergence of digital technology has raised the accuracy, resolution and measurement speed of the simulation instrument several orders of magnitude, which has laid a good foundation for the realization of test automation. The introduction of computer, make the function of the instrument has had the qualitative change, shift from individual parameter measurement to measure the characteristic parameters of the whole system, from the simple accept, display into control, analysis, processing, calculation and display output, measure from using a single instrument measure into using measurement system. Technical indicators improved vortex flowmeter is the pursuit of industry development, such as measuring range, resistance from superconducting to 1014 Ω, from close to absolute zero temperature to 1010 ℃. If measurement accuracy, the time measurement will increase from 300,000 years to 6 million years.

2. Pursue high stability and high reliability.

With instruments and measurement and control system application domain expands unceasingly, reliability technology in aviation, electric power, metallurgy, petrochemical and other large engineering and maintain normal work of playing an important role in industrial production. The vortex flowmeter which ensures the normal operation of the measurement and control system of the field instruments also requires high stability and high reliability. Due to the emergence of new materials and the development of various processing technologies, the reliability of modern vortex street flowmeters has been increased by three times compared with that of 10 years ago.

3. Miniature portability.

The application of vortex street flowmeter has been out of the laboratory, and portable vortex street flowmeter is needed in both field calibration and environmental protection.

VLSI new devices, MEMS, wafer scale integration (WSI) and multi-chip module (MCM), etc. Using micro-control technology, micro-machining technology, micro-detection technology, micro-light source, differential optical system, micro sensor, etc., it is possible to reduce the volume of vortex flowmeter products and improve the precision.