Among various level gauges, radar level gauges are the most popular, which are divided into top-mounted radar level gauges and side-mounted radar level gauges. The following Huikeda instrument introduces the working principle of the radar level gauge, as well as the problems that should be paid attention to when using the side-mounted radar level timing.Side mounted radar level gaugeThe working principle of radar level gaugeThe emission is based on the measured pulse ” the same propagation probe radar time-liquid time (TDR) radar medium reflection position, with the electromagnetic cable behind the radar device, when the pulse path of the positioning radar returns or the level domain liquid meter, along the surface The principle of pulsed liquid is that part of the meter is encountered by the reflection of the speed of light along the meter. The propagation time distance of the transmitter is measured as the pulse and the surface is proportional to the medium and the transmitter. The liquid gets the calculated height through the surface. Formed, the pulse return liquid is at least, the reflection distance and the edge value of the corroded radar position is partially sticky, but the path wave should be measured by the same antenna attached to the tip of the 100mm impact. Liquid and overflow are attached to the safety definition, and the range position can be added to the blind zone and a protection radar. The antenna range is most related to the small measurement. Yes, but under the concentration, the foam energy and the reflected microwave energy are measured again, and they are not absorbed under certain conditions.Side mounted radar level gaugeMatters needing attention in the use of side-mounted radar level gauge1. The measurement range is calculated from the point where the beam touches the lower point of the fuel tank, but under special circumstances, if the bottom of the fuel tank is concave or tapered, the level below this point cannot be measured.2. When the medium is at a low level, if the medium has a low dielectric constant, the bottom of the container can be seen. In order to ensure the measurement accuracy, it is recommended to set the zero point at a lower position of C height.3. Theoretically, the position of the antenna tip can be measured, but considering the effects of corrosion and adhesion, the final value of the measurement range should be at least 100 mm from the antenna tip.4. For overflow protection, the safety distance connected to the blind zone can be defined.5. The minimum measurement range is related to the antenna.Through the introduction of the editor, we must have understood the working principle of the radar level gauge. When using side-mounted radar level timing, we must observe the above precautions.
Post time: 21-09-21