Previous blogs have discussed human body pressures including blood pressure and optical pressures. However, there are several more pressure measurements for different body locations that need to be considered. For example, the pressures created by different situations on the human ear, and specifically the eardrum, are critically important. High noise environments such as industrial machinery […]
Acoustic
How does an acoustic camera work and what’s it good for?
Acoustic cameras consist of microphone arrays used to locate and characterize sounds. There are a variety of microphone array structures to support specific analysis needs. Some acoustic cameras also have an embedded visual camera to supply an image over which the acoustic localization information can be presented. Acoustic camera application examples range from analyzing noise […]
What are ten key parameters of audio system performance?
Ten key parameters of audio system performance include efficiency, frequency response, total harmonic distortion, intermodulation distortion, phase distortion, transient distortion, transient response, dynamic range, sound pressure level, and sound power level. This FAQ reviews how each of these parameters is specified and measured and closes with a look at how safe sound levels are specified […]
When to use sound pressure and when to use sound intensity measurements
Sound pressure, sound intensity, and sound power are three different ways to quantify sound. This FAQ begins by defining each one, looks at various types of measurement techniques that can be used to quantify them, presents a range of international testing standards for measuring sound, looks at instruments used for measuring sound pressure and intensity, […]
What’s an acoustic leak detector?
Acoustic leak detection sensor technologies rely on the fact that liquid and gas leaks are noisy. However, it’s not necessarily a noise that the human ear can detect, it can be in the ultrasonic region. Leaky water pipes are a significant environmental challenge — UN Sustainable Development Goal No. 6 states that clean (drinking) water […]
