Ultrasonic level meter is liquid/solid level measurement device for non-contact level meter for liquid,mix liquid and solid.

Ultrasonic level meter has been widely used in water procession,food,petrochemical and paper making industries for measuring level of fresh water,wasted water,slurries and petrol under the conditions as steam,foam and powder.

Technical Features:

*Non-contact ultrasonic measurement technology

*Powerful transducer with ability of clearing its surface by itself

*Auto temperature compensation

*The new mechanical structure and making technology improving the capability of the transducer

*Infrared programmer and field LCD

*Echo wave displaying by oscilloscope

*Interference suppression by manual profile of echo wave

*Easy installation and maintenance

Measurement principle

The emitter in the sensor is excited electrically and sends an ultrasonic pulse in the direction of the surface of the material which then partially reflects the pulse. This echo is detected by the same sensor,now acting as a directional microphone,and then converted back into an electrical signal.The time between transmission and reception of the pulse(the sonic run time) is directly proportional to the distance between the sensor and the product surface. This distance is determined by the velocity of sound c and the run time t using the formula:

D=c*t/2

For example,if sound c is 344.1m/s(@20 Deg.C and 1 atmospheric pressure),run time t is 50ms and then distance is 8.6m.