Integrated ultrasonic level gauge

I believe everyone is familiar with the integrated ultrasonic level gauge. It is widely used for liquid level and volume measurement of tanks, pools, and reservoirs, and it can also be used for flow measurement in open channels. In actual use, many interfaces are inaccessible, such as: corrosion (acid, alkali) to the measuring equipment, occasions that pollute the measuring equipment (sewage), or substances that produce adherents on the measuring device (adhesives) ). Since the integrated ultrasonic level gauge measurement technology is based on the non-contact ultrasonic principle, the integrated ultrasonic level gauge is suitable for liquids and material level positions that cannot be physically contacted.　　 Ultrasonic level gauge is generally composed of three parts: ultrasonic transducer, processing unit and output unit. In the measurement, the ultrasonic pulse is emitted by the sensor (transducer), and the sound wave is reflected by the liquid surface and then received by the same sensor or ultrasonic receiver, converted into an electrical signal by a piezoelectric crystal or magnetostrictive device, and transmitted and received by the sound wave The time between to calculate the distance from the sensor to the surface of the liquid being measured. From the measurement principle of ultrasonic level gauge, it can be seen that it has unique characteristics and advantages compared with other level gauges: 　　 1. Suitable for corrosive, high viscosity, flammable, toxic liquids, slurry, sewage, etc. Continuous, non-contact, meaningless measurement, not affected by medium density, permittivity, electrical conductivity, etc.　　2, can be used for liquid level measurement of open containers, pools, etc.　　3, light weight, long life, low price, easy installation, good stability.　　 Because of these characteristics and advantages, the integrated ultrasonic level gauge has also become a product respected by major factories. However, everyone has a lot of problems in the selection and installation of products. The following editor sorts out several selection and installation points: 　　 1. The ultrasonic level gauge needs to be used in a medium that can fully reflect and propagate sound waves. Ultrasonic level gauges should not be used for media with strong adsorption capacity.　　2. Ultrasonic level gauges cannot be used in vacuum occasions, nor should they be used in negative pressure occasions. Because the propagation of ultrasound requires air medium, the thin air environment is not conducive to the propagation of ultrasound, and the attenuation of sound waves increases, resulting in increased measurement errors or even inability to measure.　　 3. When the measured medium is a volatile liquid or contains a large amount of water vapor, dust, bubbles, suspended particles, etc., it is not suitable to use an ultrasonic level gauge. Because the sound waves encounter these materials, they will be irregularly reflected and scattered, and these materials will also absorb the sound waves and cause the attenuation of the sound waves, which affects the measurement effect.　　4. There are obstacles in the equipment that affect the propagation of sound waves, so ultrasonic level gauges should not be used.　　 5. Ultrasonic level gauges can generally only be used in the room temperature range, and the temperature should generally not exceed 100 ℃. Excessive pressure will increase the ultrasonic sound velocity suppression effect, affect the measurement accuracy, and even make it impossible to measure. 6. The connecting cable between the detector and the converter should take anti-electromagnetic interference measures. Because the industrial environment of each factory is too complicated, it is impossible for the editor here to make a detailed selection plan according to your specific requirements, but everyone Most of the problems can be solved by following the above-mentioned requirements in the selection and installation process. If you still have questions, the editor recommends a place-Kaidi Sensing Technology Co., Ltd. This is a manufacturer specializing in the production of integrated ultrasonic level gauges. Not only the quality of the products is guaranteed, but there are also professional technical personnel to solve technical problems for everyone. If you still have questions about the site, selection and installation, you can consult them.

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