x. signal. Algorithm equations, using measured cross-sensitivities, for three steps to reduce interferences 1.Measure temperature, T meas, (Â±1ÂºC) and O 2 (Â±4%): Method for measuring O 2 with higher frequency (1 kHz) signal, Î¸ 1kHz 2. Calculate zero NO x signal (Î¸ 0NOx) using measured O 2 and temperature3.
In physics, sound is a vibration that propagates as a typically audible mechanical wave of pressure and displacement, through a medium such as air or water. In physiology and psychology, sound is the reception of such waves and their perception by the brain.he mechanical vibrations that can be interpreted as sound are able to travel through all forms of matter: gases, liquids, solids, and plasmas. The matter that supports the sound is called the medium. Sound cannot travel through a vacuum.
The definition of sound says that it is a disturbance of energy that comes through matter as a wave, and that humans perceive sound by the sense of hearing. Sound pressure is the effect and sound power (energy) is the cause.But our eardrums are only sensitive to the sound pressure, and so are microphone diaphragms.he energy in a sound wave is both kinetic and potential. Just as in a vibrating spring, the medium has mass a â¦ nd moves and so moving mass is kinetic energy. Just as in the spring there is compression and rarefaction, so there is elastic potential energy.