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Technical characteristics and scope of application of guided wave radar level gauge

The guided wave radar level gauge is a microwave level gauge, which is an application of microwave (radar) positioning technology. It transmits energy waves through a device that can emit energy waves (generally pulse signals). The energy waves are transmitted in the waveguide, the energy waves are reflected by the obstacles, and the reflected energy waves are transmitted by the waveguide to the receiving device, and then The receiving device receives the reflected signal. The change of the level is determined according to the time difference of the measurement process of the energy wave. The microwave signal is processed by the electronic device and finally converted into an electrical signal related to the level.
The energy radiation level is low, and the device uses energy waves that are pulse energy waves (the frequency is generally lower than the smart radar level gauge). Generally, the pulse energy wave has a maximum pulse energy of about 1 mW (average power is about 1 μW), and does not cause radiation damage to other equipment and personnel.
Scope and characteristics:
The guided wave microwave level meter is used for continuous contact measurement of medium with relatively small dielectric constant such as liquid, slurry and granular material, and is suitable for occasions where temperature, pressure change is large, and inert gas or steam exists.
Has the following characteristics
1. Strong versatility: It can be used to continuously measure the level of liquid and solid powder, pellets and liquid;
Cable probe: mainly used for measuring liquid and solid material level, the maximum measuring distance is 35 meters;
Rod probe: mainly used for liquids;
Coaxial rod probe: for liquid;
It can be applied to harsh occasions such as corrosion and impact; it can provide HART, 4...20Ma, PROFIBUS-PA, FOUNDATION fieldbus and other signal interfaces to the system;
2, anti-hanging material: unique circuit design and sensor structure, so that its measurement can be affected by the sensor hanging material, no need to clean regularly, to avoid false measurements.
3, maintenance-free: no moving parts in the measurement process, no mechanical parts damage, no maintenance.
4, anti-interference: contact measurement, strong anti-interference ability, can overcome the impact of steam, foam and agitation on the measurement.
5. Accurate and reliable: The measurement quantity is diversified, the measurement is more accurate, the measurement is not affected by environmental changes, the stability is high, and the service life is long.
In addition: the probe and cable can be replaced; HART or PROFIBUS-PA communication protocol and FOUNDATION fieldbus protocol, easy to calibrate, easy on-site calibration through digital LCD display, simple configuration and programming through software

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