2). Non-contact radar, no wear, no pollution. 3). Almost free from corrosion, foam impact; 4). It is almost free from water vapor in the atmosphere, temperature and pressure changes. 5). Severe dust working environment has little effect on high-frequency...
It highlights its substantial application potential in the fields of communication, radar, and imaging. Different types of terahertz phase modulators can be used in different systems, as shown in Figure 12. For example, the transmission FSPM can be used in wavefront imaging systems and tunable ...
1. Multiple safety maintenance:STRONGintelligent forkliftadopts laser safety scanning radar to realize and motion protection. The safe scanning distance is Sm, and the vehicle speed is controlled in real time according to the safe distance mechanism for reasonable obstacle avoidance. The scanning angle ...
ultrasonic-guided wave; anomaly imaging; sparse wave number analysis; sparse reconstruction 1. Introduction Pipes, serving as carriers for the transportation of oil, gas, and water, are susceptible to developing defects such as cracks, corrosion, and deformation due to environmental and human factors...
2.2. Principle and Discretization The pressure vessel and the filling is assumed as a linear viscoelastic system, with a vessel wall of finite thickness. The excitation of elastic waves at the outer vessel wall and in an appropriated frequency band will result in various elastic guided wave modes...
wave T (0, 1) is more sensitive to surface defects than the conventional method based on longitudinal waves. The reflectivity of the torsional wave T (0, 1) can be twice that of the longitudinal wave L (0, 1) when the depth of the defect in the circumferential grooves is less than ...
Ultrasonic guided wave (UGW) is one of the most commonly used technologies for non-destructive evaluation (NDE) and structural health monitoring (SHM) of structural components. Because of its excellent long-range diagnostic capability, this method is effective in detecting cracks, material loss, and...
Second, the working principle: ZWRD700 series of guided wave radar level meter is the measuring instrument based on the principle of time travel, very low energy is emitted by a very short microwave pulse by transmitting and receiving antenna system.Radar wave are running at the speed of light...
Second, the working principle: ZWRD703 series double cable type guided wave radar level meter is the measuring instrument based on the principle of time travel, very low energy is emitted by a very short microwave pulse by transmitting and receiving antenna system.Radar wave are running at the...
Second, the working principle: ZWRD702 series lever type guided wave radar level meter is the measuring instrument based on the principle of time travel, very low energy is emitted by a very short microwave pulse by transmitting and receiving antenna system.Radar wave are running at the speed ...