Language does not simply mirror reality, it helps create our sense of reality by giving meaning to events. Rather than thinking of ideas in coming up with words to express them, we usually think in words. Inaccurate use of language can harm speakersâ credibility by making them sound less intelligent or ill informed.
Ultrasound is high frequency sound wave with frequencies of 20 kHz or higher. (Fig. 1) Ultrasound has many practical applications. It is often used in cameras to measure distance and used in ships to measure sea depth.However, more interesting applications of ultrasound are in the field of medicine. Using an array of piezoelectric transducers, ultrasound can be used to image the internal organs.Fig. 1) Ultrasound has many practical applications. It is often used in cameras to measure distance and used in ships to measure sea depth. However, more interesting applications of ultrasound are in the field of medicine.
System attributes and characteristics of the signals of interest, such as the vibration type, system type, and signal frequency range, determine the transducer to use to obtain vibration signals. Use a displacement transducer, such as a proximity probe, for measuring relative vibrations. Use an accelerometer for measuring absolute vibrations. For example, if the vibration you are monitoring is a signal such as the relative displacement from a shaft or the relative displacement from a bearing clearance, then you need to use a proximity probe.