Flow meter device factory today: In this paper, there are three situations that lead to the radar level meter measurement value jump, respectively, closed metal cover, condensation on the antenna, power supply power supply is insufficient. In fact, the radar level meter measurement value jump belongs to a relatively common problem, leading to the emergence of this problem for a number of reasons, the emergence of problems in a timely manner to find the cause and solve the problem is the most important. Liquid level is the height of the liquid level in a sealed container (pool) or an open container (pool). In addition, liquid level measurement is divided into two categories: continuous measurement and level measurement. Read additional info on flow instrumentation.
Radar level measurement represents a shift in the field of instrumentation. This state-of-the-art technology utilizes radar waves to determine levels of liquids or solids, in vessels. Unlike methods that require contact radar operates non invasively by emitting microwaves and carefully analyzing the reflected signals. The key radar level measurement principle here is time of flight measurement- accurately measuring the time it takes for a radar pulse to travel from a transmitter, bounce off the surface of the material and return to a receiver. This temporal data is then converted into an accurate level reading.
Measurement accuracy, the accuracy of ordinary radar is generally ±10mm, and the accuracy of precision radar is ±3mm. Selection according to the actual needs of production. Range, according to actual needs, choose the antenna size. Note that the actual range is reduced in complex environments. Antenna type and antenna size, the larger the antenna size, the larger the measured range and the stronger the anti-interference ability. The antenna types of radar level gauge are rod type, bell mouth type, paraboloid and so on.
The key components are made of high-quality materials, which have strong corrosion resistance and can adapt to highly corrosive environments. Low power consumption, can use solar power to supply power, no need to build water level wells, adapt to various geographical environments, no impact on water flow, and more convenient installation and maintenance. The parameter setting is convenient, and the false echo from the liquid surface to the antenna can be automatically identified by the software carried by itself to eliminate the interference.
An important part of steam generation is the quality of the steam generated. Maintaining water quality in the boiler within design parameters ensures the highest quality steam possible while minimizing blowdown of the boiler, both of which improve energy and resource management. Continuous or manual blowdown of the boiler minimizes scale accumulation and corrosion resulting from impurities in the water. The blowdown provides a means of accommodating liquid and impurities from the boiler, with the latter facilitating energy recovery through the use of flash steam.
Secondly, in cement production, material level measurement encountered another difficulty is strong dust interference, especially pneumatic conveying powder silo, dust flying when feeding, low visibility, laser level meter and high energy ultrasonic level meter can not be measured, although radar level meter at this time can receive part of the surface echo. But the echo signal was also weakened. In addition, due to the uneven surface of the radar echo is refracted, will also lead to the existence of radar echo; In addition, there are some conditions from the bottom to the bin inflation, so that the material surface loose, material level measurement is more difficult.
As one of the most professional magnetic level indicators manufacturers in China,Guangdong Kaidi Energy Technology Co., Ltd. provides customized solutions for a range of industrial automation process applications,such as mechanical float level indicator.We specialized in radar level gauge, fork type level switch,etc. These were implemented successfully, and KAIDI magnetic level gauge manufacturers products,such as radar level meter, magnetic level indicators, can be used in many different industries such as food & beverage, water, energy, pharmaceutical etc. Find more information on kaidi86.com. Kaidi Energy is a level gauge manufacturer which more than 20 years of industrial automation experience.
In the measurement circuit of the radar level gauge, when there is additional DC current and voltage, it is DC interference. In severe cases, the measuring instrument will not work properly. The sources of DC interference are as follows: AC interference can be divided into line-to-line interference and ground interference. Inter-line interference refers to the AC voltage between the output ends of the radar level gauge (compensation line) under external influence. This interference is also known as lateral, common mode or common mode interference. Generally speaking, the line-to-line interference voltage can reach several millivolts or even tens of millivolts.
Working principle: Working principle of radar level gauge: UHF electromagnetic waves are transmitted to the liquid level of the container under test through the cable or antenna. When the electromagnetic wave touches the liquid level and is reflected back, the instrument detects the time difference between the initial wave and the echo, thereby calculating the liquid level height. Select guided wave radar or airborne radar according to the dielectric constant and measurement length of the measured medium.
The influence of dust accumulation on the transmitter head of the radar level meter, due to the large amount of dust in the working condition of the radar level meter, the dust is easy to adhere, and affected by the ambient temperature, the dust is wet and easy to agglomerate, and the dielectric constant will become larger and adhered The transmitter head and the wall of the bell mouth of the radar level meter affect the accuracy and stability of the radar measurement.