JOHNE'S DISEASE. BVD (Bovine Virus Diarrhea) infection can cause numerous problems, such as damage to the digestive and immune systems, pneumonia, abortions, calf deformities, and others. Clinical signs in newborn calves infected with BVD include fever, nasal discharge, diarrhea, and inability to move about normally.
Ultrasonic Flow meter is a device used to measure the velocity of the fluid with the help of ultrasound transducers to compute volume flow of the fluid. This flow meter measures average velocity of the fluid with the use of sound waves. Working Principle of Ultrasonic Flow Meters-.
How Ultrasonic Sensors Work - The Technology Unveiled. One of the most versatile technologies used for object detection and level measurement is ultrasonic. An ultrasonic sensor works by using the principals of sound. The term ultrasonic means above human hearing as the sensor uses a frequency we cannot hear.