7.3.4 Level Sensors (1) Concept A level sensor is a device used to detect, measure, and monitor the height of liquid, slurry, or solid material surfaces. It converts the height information of the liquid level into an electrical signal output according to certain rules, facilitating display, alarm, recording, or control, with the function of achieving … Read more
Click the blue text to follow us For official submissions and manuscript inquiries for “Physical Testing”, please see the original link. Contributions are welcome!
Ultrasonic waves are sound waves with frequencies higher than the highest frequency audible to the human ear, typically above 20kHz. Dolphins in nature communicate using ultrasonic waves, while bats use them for navigation and obstacle avoidance. Ultrasonic waves can be used to measure distance. This experiment will learn how to use Arduino to implement ultrasonic … Read more
The ultrasonic testing instrument is an industrial non-destructive testing device that can quickly and conveniently detect, locate, evaluate, and diagnose various internal defects (such as welds, cracks, inclusions, folds, pores, and sand holes) in workpieces without causing damage. It can be used in laboratories as well as in engineering sites. It is widely applied in … Read more
A sensor (English name: transducer/sensor) is a detection device that can sense the information being measured and convert that information into electrical signals or other required forms of information output according to certain rules, to meet the requirements for information transmission, processing, storage, display, recording, and control. The characteristics of sensors include: miniaturization, digitization, intelligence, … Read more
In the early 21st century, phased array ultrasonic technology expanded from the field of medical imaging to industrial non-destructive testing (NDT), establishing its significant position. The industrial phased array ultrasonic testing (PAUT) system utilizes multiple independently controlled elements or channels to emit and receive ultrasonic signals. Compared to traditional single-channel systems, PAUT can more accurately … Read more