Shanghai Meixu Measurement and Control MX-LL-116-09 Ultrasonic Flowmeters can be divided into propagation velocity difference method (direct time difference method, time difference method, phase difference method, and frequency difference method), beam offset method, Doppler method, cross-correlation method, spatial filtering method, and noise method based on the principle of signal detection

Shanghai Meixu Measurement and Control MX-LL-116-09 Ultrasonic Flow Meter According to the principle of signal detection, ultrasonic flow meters can be divided into propagation velocity difference method (direct time difference method, time difference method, phase difference method, and frequency difference method), beam offset method, Doppler method, cross-correlation method, spatial filtering method, and noise method


The inverse piezoelectric effect of electrical components, while the receiving transducer utilizes the piezoelectric effect.
Ultrasonic flowmeter, like electromagnetic flowmeter, is a type of flowmeter that is suitable for solving difficult flow measurement problems due to the absence of any obstacles in the instrument flow channel. It has outstanding advantages in large-diameter flow measurement and is one of the rapidly developing types of flowmeters

The Shanghai Meixu MX-LL-116-09WJ split type ultrasonic flowmeter is widely used for online flow measurement of various liquids in industrial sites. The main unit of this product is divided into wall mounted standard type, wall mounted explosion-proof type, disc mounted type, and wall mounted network type. The sensors are divided into external clamp type, plug-in type, pipe section type, etc., to meet the needs of users in different sites.

2. Application areas:
Petrochemical industry, steel metallurgy
Water supply and drainage, water conservancy irrigation
☛ Water treatment and sewage treatment stations (environmental sewage control)
Fluid such as alcohol, oil, sewage, etc
Distillation and sales engineering system, condensate measurement

3. Product features

1. No mechanical transmission components are easy to damage, maintenance free, and have a long service life;
2. Segmented small pipe diameter measurement is economical, convenient, accurate, and highly precise.
3. External clip on and insertion type are highly suitable for the large-diameter flow measurement industry
4. Good repeatability, generally 0.05-0.08%, with optional small signal resection, non-linear correction, and selectable filtering time;
5. There is basically no pressure loss, and large diameters can be clamped externally;
6. Can measure non-conductive media such as pure water, oil, etc
7. Strong anti-interference and anti impurity capabilities, multiple output forms, able to transmit various parameters remotely, and can be used without mixing heat.

4. Dimensions of the split body:

5. Principle of Time Difference Measurement:

The principle of measuring fluid flow using the time difference method is shown in the diagram. It utilizes the characteristic of different propagation speeds of sound waves in fluids due to different flow directions, measures the difference between its forward propagation time t1 and backward propagation time t2, and calculates the velocity and flow rate of fluid flow

6. Selection parameters and specifications:
Model Description:	MX-LL-116-09WJ (external clamp type); MX-LL-116-09GD (pipe section connection)
Nominal longitude:	DN15-DN1000 (pipeline installation method); DN15-DN6000 (external clamp connection)
Digital display casing:	M1 (regular casing); M2 (explosion-proof enclosure)