The ultrasonic flowmeter is a panel that measures the total flow rate based on the effectiveness of the hydrodynamic flow on the ultrasonic beam (or ultrasonic monopulse).According to the basic principle of testing data signals, ultrasonic flowmeters can be divided into rapid propagation differential method (immediate time difference method, time difference method, phase difference method and frequency difference method), beam offset method, multispectral method, interrelation method, indoor space filter method and noise method, etc.

Advantages and disadvantages of ultrasonic flowmeter

Flowmeter, ultrasonic flowmeter and electromagnetic induction block all dashboard commodity circulation safe passage not set pieces, without blocking flow meter, is suitable for the flow measurement difficult problem of a kind of flow meter, is in large size with highlight the advantages of the flow measurement level, in recent years, this is one of the developing trend of rapid flow meter.

Advantages :(1) non-capacitive grid measurement;(2) is the measurement without liquidity obstruction and without working pressure damage;(3) measurable non-conductive liquid is a filling for the electromagnetic induction flowmeter without obstructing measurement.

Defects :1) diffusion time method is only used to clean the liquid and vapor;The doppler method is only used to measure the liquid with a certain amount of floating particles and bubbles.(2) the precision of doppler method is not high.

Application overview:

(1) diffusion time method is used for cleaning, single-phase electric liquids and vapors.Typical use of factory sewage, : strange liquid, LNG and natural gas;(2) excellent working experience in high pressure gas industry at the level of steam application;(3) the doppler method is applicable to the two-phase fluid mechanics with low water content in the heterogeneous phase, such as no treatment of waste water, factory sewage and dirty step fluid;A liquid used to clean well.

Porcelain city Shanghai instruments co., LTD., the introduction of Germany Siemens numerical control processing center, make the tiny flowmeter is greatly increased, actually has reached world leading level, such as OVAL LSF40, many clients in Japan and the customer to know LSF40 flow range in 0.7 ~ 50 l/H, and porcelain xian CX - M5 - AL can achieve 0.3 ~ 60 l/H, the same 0.5% FS precision, another porcelain city gear is SS316L is qualitative, OVAL gear is plastic.