What are the characteristics of the ultrasonic level gauge. The following Jinhu Jiete instrument introduces you to the working principle of the ultrasonic level meter. Secondly, you should understand the characteristics of the ultrasonic level meter or the level gauge itself when selecting, which will help you when you choose the type. The working principle of the ultrasonic level meter and the characteristics of the selected ultrasonic level gauge. The following Jinhu Jiete instrument introduces you to the working principle of the ultrasonic level meter. Secondly, you should understand the characteristics of the ultrasonic level meter or the level gauge itself when selecting, which will help you when you choose the type.
Ultrasonic level meter works:
The high-frequency pulse sound wave emitted by the ultrasonic transducer (probe) encounters the surface of the material to be measured and is reflected back. The reflected echo is received by the transducer and converted into an electrical signal. The propagation time of the sound wave and the sound wave are emitted to the surface of the object. The distance between the acoustic wave transmission distance S and the sound velocity C and the acoustic transmission time T can be expressed by the formula: S=C×T/2. Since the mechanical inertia during the acoustic pulse emission takes up the transmission time, it is close to the ultrasonic transducer. In a small area, the sound wave cannot be received. This area is called a blind zone. The size of the blind zone and the range of the ultrasonic wave are of concern: the probe - in the ultrasonic detection technology, regardless of the ultrasonic instrument, the electrical energy conversion ultrasonic wave must be transmitted and then received. The device that transforms into an electrical signal and performs this function is called an ultrasonic transducer, also called a probe. Ultrasonic level gauge is a general term for ultrasonic level gauge and ultrasonic level gauge. When used to measure liquid levels, it is often referred to as an ultrasonic level gauge. When used to measure solids levels, it is often referred to as an ultrasonic level gauge. The term level refers collectively to the surface location of liquid or solid materials in various equipment and in open or closed containers. We generally refer to sound waves with a sound wave frequency exceeding 20 kHz as ultrasonic waves. Ultrasonic waves are a kind of mechanical waves, that is, a kind of propagation process of mechanical vibration in an elastic medium. It is characterized by high frequency, short wavelength, and small diffraction phenomenon. It has good directionality and can be ray-directed. Ultrasonic waves have little attenuation in liquids and solids, so they have strong penetrating power. Especially in solids that are opaque to light, ultrasonic waves can penetrate for several tens of meters. When they encounter impurities or interfaces, they will have significant reflection. Ultrasonic measurement The level is the use of this feature.
Understand the characteristics of the ultrasonic level gauge | level gauge, easy to use:
1. Select professional ultrasonic small angle probe, which has large transmitting power, high sensitivity, long life and long measuring distance;
2, any point upper and lower limit setting, reversal setting, can be set within the ranging range arbitrarily set the distance between two points corresponding to 4-20MA or 0-5V, the sensor can be easily installed and debugged, to adapt to various signal connection requirements. Distance accuracy online calibration can be used for liquid level control of water, wine, sugar, beverages, etc.
3. The output mode has 4-20MA or 0-5V output, 0-10V output. Digital signal: RS232 (three lines) / RS485 (optional one, agreed at the time of ordering) The secondary indicator is an intelligent digital display instrument with multiple functions, wherein the upper and lower limit setting functions can realize liquid level and level Self-control and alarm.
4. The distance or depth data is directly displayed by the LED digital tube, which is convenient for on-site measurement and has a temperature display.
5, full sealing design, can be used in the field, can directly measure the liquid.
6, cost-effective, the price is extremely low. Source: electromagnetic flowmeter http:// orifice flowmeter http://
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