应用时需考虑的几个重要事项：1、 范围和大小。 Several important things to consider when applying an ultrasonic level meter : 1. Range and size. The size of the object to be detected directly affects the maximum range of the ultrasonic sensor. The sensor must detect a certain level of sound before it can output. Large parts can reflect most of the sound to the ultrasonic sensor so that the sensor can detect the part at its longest sensing distance. Small parts can only reflect a small part of the sound, which results in a greatly reduced sensing range. 2. Object to be detected. The ideal object for ultrasonic detection should be large, flat and dense, and perpendicular to the front of the transducer. The most difficult objects to detect are small objects made of sound-absorbing materials (such as foam rubber), or objects at an angle to the transducer. You can detect some difficult objects by having the sensor detect the background surface and then react to the detection target object between the sensor and the background. If the liquid surface is stationary and perpendicular to the sensor surface, detecting the liquid is easy. If the liquid level fluctuates greatly, the response time of the sensor can be extended, so as to take the average of the fluctuation changes to obtain a more consistent reading. However, the ultrasonic level meter cannot accurately detect a liquid with a foamy surface, because foam can deviate the direction of sound propagation.
的反向超声模式，探测形状不规则的物体。 You can use the inverse ultrasonic mode of the ultrasonic level meter to detect irregularly shaped objects. In reverse ultrasound mode, the ultrasound sensor detects a flat background, such as a wall. Anything that passes between the sensor and the wall blocks sound waves. The sensor can detect the interference to identify the existence of the object. Fiber tools, fiber light source meters, laser power meters, short message devices, fiber power meters, Ethernet bridges, converters, optical transceivers, fiber modems, and network testers. 1. Vibration. Both the vibration of the sensor itself and the vibration of nearby machines may affect the accuracy of the distance measurement. A rubber anti-vibration device can be used when installing the ultrasonic level meter to reduce such problems. Rails are also sometimes used to eliminate or greatly reduce component vibration. 2. Attenuation. The sensor is also designed with a temperature compensation function to regulate the slowly changing ambient temperature. However, it cannot regulate temperature gradients or rapid changes in ambient temperature. 3. Mistested results. Nearby objects (such as guide rails or fixing rods) may reflect sound waves. To accurately detect a target object, the effects of nearby sound reflecting surfaces must be reduced or eliminated. In order to avoid false detection of nearby objects, the ultrasonic level gauges are equipped with LED instructions to instruct the operator during installation to ensure that the sensors are properly installed and reduce the risk of false measurements.
还不具备经久耐用的精准传感能力。 A few years ago, ultrasonic level meters did not have the durability and precision sensing capabilities. Today, advances in science and technology have made this level of ultrasonic level gauges increasingly powerful. These new technologies make ultrasonic level meters easier to use, more flexible, and less expensive. Compared with the traditional ultrasonic sensor design, these new functions greatly expand its application scope. Today, ultrasonic level gauges help mechanical designers find innovative solutions to reduce costs, improve quality control efficiency, and enhance inspection capabilities in a wide range of industries. And its application in the packaging field is getting deeper and deeper. At present, the ultrasonic level meter uses several advanced technologies to enable it to be used in areas where traditional equipment cannot work: 1. The ultrasonic level meter uses a protective cover of IP67 and IP69K, which can be used in humid environments (such as washing Bottle machine); 2. Built-in temperature compensation circuit can compensate for the severe temperature changes that may occur during normal day and night shift operation; 3. The special coating on the sensor surface can prevent the erosion of harmful chemicals; 4. Advanced filtering The circuit makes the ultrasonic level meter not affected by the environmental noise of the factory; 5. The new transducer design greatly enhances its loss prevention performance and can be used in unclean environments.