The HCDAR-8X series products refer to frequency-modulated continuous wave (FMCW) radar products operating in the frequency range of 76-81GHz, 

supporting four-wire and two-wire applications. Multiple models have a maximum range of up to 120m and a blind zone of 8cm. Due to its higher

 operating frequency and shorter wavelength, it is particularly suitable for solid applications. Through the method of transmitting and receiving 

electromagnetic waves through a lens, it has unique advantages in high dust and harsh temperature environments (+1200℃). The 80G radar level 

gauge emits linearly frequency-modulated pulse signals and captures the reflected signals that are blocked by the objects on its transmission path 

during the emission process. After combining these two signals through a "mixer", a intermediate frequency signal (IF) is obtained. The IF signal is 

processed and converted to obtain the required distance information. The HCDAR-8X radar level gauge can perform continuous measurement of 

different material levels and is suitable for harsh environments such as high temperature, steam, high dust, and volatile gases. It is widely used in

 industries such as chemical, energy, petrochemical, medicine, and cement. The radar level gauge has the following six advantages: 

Advantage 1: Advanced algorithms; Based on complementary metal oxide semiconductor (CMOS) devices, highly integrated, higher signal-to-noise

 ratio, and smaller blind zone. 

Advantage 2: The debugging process is simple, and the display screen allows for a clear visual of the measured waveform. 

Advantage 3: High frequency, small instrument beam angle, minimum 3° beam angle, strong anti-interference capability, high measurement stability

 and reliability; 

Advantage 4: Frequency modulation technology; The 5GHz working bandwidth enables the product to achieve higher measurement resolution and 

accuracy. 

Advantage 5: Convenient connection; supports Bluetooth debugging, remote debugging and remote upgrading, reducing waiting time and enhancing

 work efficiency. 

Advantage 6: Wide application range; The HCDAR-8X series radar level gauges produced by Hebei Huachuang Measurement & Control can be applied

 to various types of working conditions and are not affected by factors such as the density, viscosity, electrical conductivity, dust, and corrosiveness of

 the medium. 

In addition to the aforementioned performance, the radar level gauge also has advantages in handling signals under special conditions. Below are 

specific details about the installation and testing difficulties of the radar in the train receiving tank at a certain steel plant in Shandong Province, along 

with the optimization measures taken: 

The on-site installation method is very unique. The level gauge is installed at a high position, fixed on the cross-brace of the steel structure of the train

 receiving chute shed, extending about 60 cm, perpendicular to the discharge outlet of the train receiving chute in the material area. 

The presence of a strong reflection plate above the actual material level, as well as the interference caused by the operation between the plate and the

 installation position, has a significant impact on material level detection. 

Optimization measures: 1) Process the original data using asymmetric window functions to suppress the grate plate signals and interference signals; 

2) Employ the blind zone strategy to strictly control the interference between the grate plates and between the grate plates and the installation 

position within the blind zone, avoiding the influence of the interference targets within the blind zone on the actual material change area. 

2. In the empty storage state, false echoes, the types of materials during the feeding and discharging process, the feeding and discharging speeds, 

as well as material collapse, etc., all present uncertainties that have an impact on the rapid and accurate detection of the material level by the radar. 

Therefore, the radar needs to be able to promptly respond to the changes in the material level caused by the feeding and discharging process, 

the changes in the material level caused by material collapse, as well as the situations where the material surface has a slope and the echo reflection

 is weak, and output the corresponding material values. 

Optimization measures: 1) For the problem of false echoes in the optimized empty storage state, two main strategies are adopted. One is to make 

judgments based on the signal-to-noise ratio (SNR), reflection area (RCS), amplitude and background noise of the detected target, to identify false 

argets and correctly output the empty storage state. Additionally, on this basis, it also supports learning false echoes according to the on-site working 

conditions to suppress the interference caused by false targets. 2) Adjust the radar detection result output scheme in combination with the existing 

production rules and the situation of material inflow and outflow. The calculation results are controlled by information such as 'inflow and outflow 

speed' to adjust the filtering parameters of the output results, achieving the adjustment of the speed and stability of the output values.

If you have any needs, please contact us!

Contact number: 400-851-0898