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Radar level meter product introduction
Optimal level measurement solution
Radar level meter is a non-contact radar level meter using the pulse principle, which can be widely used to measure the distance, level, volume, weight and open channel flow of liquids, slurries and gunks, and can also be used to measure solid media such as powder, particles and blocks. Stable measurement is possible even in dusty, agitated applications
Measurement principle
The radar level meter transmits a very narrow microwave pulse signal with very low energy through the antenna. The pulse signal is transmitted in space at the speed of light and is reflected when it meets the measured medium. The reflected signal is received by the instrument. The time interval between transmitting pulse signal and receiving pulse signal is proportional to the distance between the datum surface and the measured medium surface. The distance between the antenna and the medium surface is measured.
Time 1: The initial pulse is generated
② Time 2: Travel down the horn antenna, speed C(light speed)
③ Time 3: The pulse meets the surface of the medium and reflects
Time 4: The reflected pulse is received and recorded by the processor
⑤ The time difference T between the pulse signal from being transmitted to being received is proportional to the distance D from the datum surface to the medium surface: D=C×T/2
⑥ The datum of measurement is: the bottom surface of the thread or the sealing surface of the flange
⑦ A: range B: low C: full D: blind area
⑧ When running, ensure that the highest material level can not enter the measurement blind area D
Product characteristics
1. Transmit frequencies up to 26GHz
2. High frequency and signal-to-noise ratio, it is the best choice for low dielectric constant media
3. The beam Angle is small, the energy is concentrated, and it has stronger anti-interference ability, which greatly improves the measurement accuracy and reliability
4. The measurement blind area is smaller, and the measurement of small tanks will also achieve excellent results
5. The wavelength is shorter, and the level measurement effect is better for small particle medium and inclined medium surface
6. Sensitive measurement, fast refresh speed, small antenna size, easy installation, firm and durable, maintenance-free
7. Non-contact measurement, no wear, no pollution, can measure the level of liquid, solid media
8. Almost unaffected by temperature, pressure, water steam, foam, dust and other complex working conditions
9. Using two-wire circuit power supply technology, the power supply voltage and output signal are transmitted through a two-core cable, saving costs
10. Using advanced microprocessor and unique echo processing technology, it can be applied to a variety of complex conditions
11. Very low transmission power, can be installed in a variety of metal, non-metal containers, no harm to the human environment
12. The display with buttons can easily set the parameters of the instrument
Application industry
◆ Chemical and Petrochemical Industry
◆ Electricity
◆ Other
◆ Intermediate silo ◆ Storage silo ◆ Steel and metallurgy
◆ Mineral resources
◆ Hopper ◆ Storage Tank
◆ Paper and pulp ◆ Water and wastewater ◆ Process tank ◆ Mixing tank
◆ Food and Beverage ◆ Pharmaceutical
Applicable operating conditions
◆ Intermediate silo ◆ Hopper
◆ Process tank ◆ Other ◆ Storage bin
◆ Storage tank
◆ Mixing tank
Guided wave radar position meter
Measurement principle
Guided wave radar is a measuring instrument based on the principle of time travel. Radar waves travel at the speed of light, and the running time can be converted into level signals through electronic components. The probe emits a high-frequency pulse and propagates along the cable. When the pulse hits the surface of the material, it is reversely transmitted back to the receiver in the meter, and the distance signal is converted into a level signal.
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