1. Principle: Ultrasonic wall propagation attenuation.
Working mode: Aftershock type.
Technical characteristics: Variable frequency ultrasonic technology, eliminates interference and eliminates false positives. External measurement level switch schematic diagram One monitoring point uses two probes for monitoring, one is a transmitting probe and the other is a receiving probe; the transmitting probe emits ultrasonic waves, because the ultrasonic waves have different transmittances to the liquid and gas, the monitored points When there is liquid or no liquid, the receiving probe receives different residual energy, and the meter displays the liquid or no liquid state according to the difference in energy value.
1) A unique technology of variable frequency and amplitude ultrasonic technology. By accumulating and analyzing the application data of more than 10,000 meters, the advanced adaptive learning algorithm is summarized. The effective signal recognition rate is greater than 98%. Attachment, rain and spray can be distinguished at the signal recognition level. The dynamic adjustment of the amplitude and amplitude can effectively filter out the interference signals; excellent sensor manufacturing technology, high-performance materials and strict installation technology ensure the realization of the technology.
2) Micro-vibration analysis technology and characteristic is an external measurement signal processing technology, which intelligently analyzes the signal received by the receiving probe, which can effectively eliminate interference and accurately detect signal changes, so that the external measurement level switch can be applied to various A variety of complex on-site conditions, long-term stable and reliable work.
Liquid level switch An isolated detection instrument that detects the liquid level from outside the container. Because the product uses the patented technology "micro-vibration analysis technology"-external measurement acoustic signal processing technology, and "variable frequency ultrasonic technology"-acoustic wave after vibration signal identification and processing technology, ensuring the reliability of external measurement variable frequency ultrasonic liquid level switch stability.
1. Do not stop online installation, do not open the container, do not move the fire, do not use flanges;
2. Not affected by the viscosity of the liquid being tested, and not affected by the purity of the liquid;
3. Not affected by the density, pressure and temperature of the medium;
4, not affected by the working conditions in the container
5, no mechanical moving components, durable and wear-free;
6, environmental protection, no hidden dangers of leakage.
Due to the above characteristics of the liquid level switch, it is suitable for: 1. suitable for occasions with severe safety requirements and high requirements for construction conditions; 2. suitable for monitoring liquid levels of various liquid media, including asphalt and crude oil for difficult external testing; 3, The patented technology "micro-vibration analysis" technology and "frequency conversion ultrasonic technology" ensure the accuracy, reliability and stability of the instrument.