Ultrasonic Level Sensors Explained |
Posted: July 20, 2021 |
With multiple sensors on the market, some people feel a little overwhelmed when selecting the right one. Considering the high demand for ultrasonic liquid level sensors, the information provided focuses specifically on this product. Interestingly, ultrasonic level sensors date back decades. For businesses that need to determine accurate liquid levels, these sensors are valuable tools. After all, they are reliable, flexible, and cost-effective. In addition, they possess keen capabilities for the task. What Is an Ultrasonic Fluid Level Sensor?In the simplest terms, this sensor determines the height of the liquid. To accomplish that, the sensor emits a chirping sound, which usually falls between 23 and 40 kHz. The human ear can only detect sound around 20 kHz, explaining the name “ultrasonic” level sensor. Based on the chirping sound, the device measures how much time it takes to bounce off an object. The common equation for an ultrasonic fluid level sensor is: Distance (in meters) = the time lapsed (in seconds) x 343 (meters per second) / 2 With that, different industries can get accurate and reliable readings. One of the key advantages of ultrasonic liquid level sensors is their customization. It’s possible to adjust the equation used to determine the length of time it takes for the sound to bounce off an object for every application. That process, as well as using the standard equation, is straightforward, making the unit easy to operate.
The Simplicity of Using Ultrasonic Level SensorsThis type of sensor operates using two parts: a transmitter and a receiver. Typically, these sit side-by-side. The goal is to place them as close together as possible. Configuring the sensor that way allows the chirping sound to travel in a straight line. That yields a far more accurate measurement. However, industries that rely on an ultrasonic fluid level sensor can opt for a transmitter and receiver combination. Called a “transceiver,” this is one unit as opposed to two. The benefit is that this particular configuration further reduces the risk of measurement errors. If describing the acoustic waves as a shape after leaving the transmitter, they would resemble a flashlight beam rather than a laser beam. As the sound waves get further away from the transmitter, the detection area becomes larger vertically and laterally. That’s what gives ultrasonic liquid level sensors the specifications for coverage in either a beam angle or beam width rather than a typical detection area. Now, before purchasing this type of sensor, it’s important to compare the beam angle between different manufacturer’s products. Specifically, find out if the beam angle is full or a variation from the straight line coming from the transducer. That information helps to establish the detection area.
Turn to a Reputable Source for Ultrasonic Level SensorsFor the best sensors on the market, you can always count on us at Introtek International. Along with the ultrasonic fluid level sensor, we offer other high-tech solutions. For more information about this sensor or to purchase one for your business, contact us today. One of our professional representatives will gladly assist.
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