The ultrasonic liquid level sensor is a non-contact measuring device. That can send and receive high-frequency sound waves to measure the distance to the surface of liquid-based materials.

Ultrasonic Level Sensing

The ultrasonic liquid level measurement uses the non-contact principle. It is most suitable for level measurement of hot, corrosive, and boiling liquids. It is used to measure liquid levels. Ultrasonic equipment that converts it into electrical signals to send to other instruments.

Sino-Inst offers a variety of ultrasonic liquid level sensors and transmitters for continuous, non-contact tank level measurement. If you have any questions, please contact our sales engineers.

Featured Ultrasonic Level Sensors

Extended reading: Guide to Ultrasonic Level Transmitters

How is liquid level measured?

The working principle of the ultrasonic level gauge: The high-frequency pulse sound wave emitted by the ultrasonic transducer is reflected on the surface of the measured level, and the reflected echo is received by the transducer and converted into an electrical signal. The propagation time of the sound wave is proportional to the distance from the sound wave to the surface of the object. The relationship between sound wave transmission distance S and sound speed C and sound transmission time T can be expressed by the formula: S=C×T/2.

What is liquid level sensor?

The liquid level sensor is a pressure sensor that measures liquid level. The static pressure input type liquid level transmitter is based on the principle that the measured liquid static pressure is proportional to the height of the liquid. It uses an isolated diffused silicon sensor or a ceramic capacitive pressure sensitive sensor to convert the static pressure into an electrical signal. Temperature compensation and linear correction are converted into standard electrical signals (usually 4~20mA/1~5VDC)

Read more about: Differences! Static pressure vs dynamic pressure vs total pressure

Liquid level measurement using ultrasonic method

The basic principle of ultrasonic measurement of liquid level is: the ultrasonic pulse signal sent by the ultrasonic probe propagates in the gas, and is reflected after encountering the interface of air and liquid. After receiving the echo signal, calculate the propagation time of the ultrasonic wave. Convert the distance or liquid level height.

Read more: Guide: Non-contact Ultrasonic Level Sensing transmitters

Common Applications for Ultrasonic Liquid Level Sensors

Ultrasonic liquid level sensor integrates three functions of non-contact switch, controller and transmitter. Suitable for small storage tanks. In integrated systems or replace float switches, conductivity switches and static pressure sensors. It is also suitable for integrated applications in fluid control and chemical supply systems. for machinery, brakes and other equipment The application of small storage tanks is also a good choice.

Ultrasonic Liquid Level Measurement
Ultrasonic Liquid Level Measurement

The Ultrasonic Liquid Level Measurement also has the following characteristics:

  • The range of the ultrasonic liquid level sensor is 1.25 meters
  • Ultrasonic liquid level sensor DL10 output 4~20mA
  • Ultrasonic liquid level sensor DX10 outputs 0-5V voltage signal
  • Ultrasonic liquid level sensor probe material PVDF, resistant to acid and alkali corrosion
  • Narrow beam angle of 0 degrees, support static tube technologyWebCal software calibration, protection grade IP67
SIRD70 Guided Wave Radar (GWR) Level Transmitters

Sino-Inst offers over 10 Ultrasonic Level Sensing sensors and transmitters for level measurement. About 50% of these are float liquid level meters, 40% is the level switches.

A wide variety of Ultrasonic Level Sensing sensors and transmitters options are available to you, such as free samples, paid samples.

Sino-Inst is a globally recognized supplier and manufacturer of Ultrasonic Level Sensing sensors and transmitters instrumentation, located in China.

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