Acoustic impedance and specific acoustic impedance are measures of the opposition that a system presents to the acoustic flow resulting from an acoustic...
18 KB (3,231 words) - 16:38, 30 January 2024
up impedance in Wiktionary, the free dictionary. Impedance is the complex-valued generalization of resistance. It may refer to: Acoustic impedance, a...
1 KB (195 words) - 12:33, 22 January 2023
electrical engineering, impedance matching is the practice of designing or adjusting the input impedance or output impedance of an electrical device for...
32 KB (4,650 words) - 17:46, 13 September 2024
Rayl (section Specific acoustic impedance)
(symbol Rayl) is one of two units of specific acoustic impedance and characteristic acoustic impedance; one an MKS unit, and the other a CGS unit. These...
5 KB (639 words) - 18:08, 2 February 2024
Sound (redirect from Acoustic Radiation)
Sound box Sound reproduction Sound measurement Acoustic impedance Acoustic velocity Characteristic impedance Mel scale Particle acceleration Particle amplitude...
37 KB (4,172 words) - 16:12, 31 July 2024
Sound pressure (redirect from Acoustic pressure)
{v} ,} where p is the sound pressure, v is the particle velocity. Acoustic impedance, denoted Z and measured in Pa·m−3·s in SI units, is defined by Z (...
28 KB (2,970 words) - 00:21, 31 August 2024
The characteristic impedance or surge impedance (usually written Z0) of a uniform transmission line is the ratio of the amplitudes of voltage and current...
28 KB (4,069 words) - 07:45, 30 April 2024
Sound intensity (redirect from Acoustic intensity)
{\displaystyle {\frac {p}{c}}=z_{0},} where z0 is the characteristic specific acoustic impedance. Thus, I 0 = p 0 2 I p 2 = p 0 2 p c p 2 = p 0 2 z 0 . {\displaystyle...
10 KB (1,578 words) - 07:57, 9 October 2023
such as acoustic impedance of a tube, which is not measurable because of its inherent interaction with the sound source and the load of the acoustic component...
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Particle velocity (redirect from Acoustic velocity)
{\displaystyle \varphi _{v,0}=\varphi _{p,0}} , the amplitude of the specific acoustic impedance is given by z m ( r , s ) = | z ( r , s ) | = | p ^ ( r , s ) v ^...
7 KB (1,168 words) - 17:38, 24 August 2023
An acoustic horn or waveguide is a tapered sound guide designed to provide an acoustic impedance match between a sound source and free air. This has the...
6 KB (871 words) - 15:16, 8 April 2022
point impedance; otherwise, transfer impedance. Resistance - the real part of an impedance. Reactance - the imaginary part of an impedance. Acoustic impedance...
2 KB (323 words) - 11:29, 25 June 2023
the delamination (acoustic impedance almost zero) from inclusions and particles, but not from air bubbles, which show same impedance behavior as delamination...
12 KB (1,690 words) - 18:09, 9 July 2024
does not behave like an infinitesimal acoustic impedance; rather, it has a finite value, called radiation impedance, which is dependent on the diameter...
23 KB (3,276 words) - 09:10, 26 June 2024
the system by compressing and expanding the springs, transmitting the acoustic energy to neighboring spheres. This helps transmit the energy in-turn to...
56 KB (7,948 words) - 23:56, 24 September 2024
Sound power (redirect from Acoustic power)
(the surface area of sphere) where z0 is the characteristic specific acoustic impedance. Consequently, I = p v = p 2 z 0 , {\displaystyle I=pv={\frac {p^{2}}{z_{0}}}...
13 KB (1,619 words) - 06:12, 11 October 2023
Microphone (section Impedance bridging)
– wire gauze, fabric or foam – is designed to have a significant acoustic impedance. The relatively low particle-velocity air pressure changes that constitute...
83 KB (10,076 words) - 22:23, 6 September 2024
Surface acoustic wave-based devices make use of the fact that the reflectivity of an acoustic wave at the crystal surface depends on the impedance (the stress-to-speed...
70 KB (8,791 words) - 05:05, 24 February 2024
variation is required for acoustical systems; here pressure and voltage are made analogous (impedance analogy). In the impedance analogy, the ratio of the...
39 KB (5,058 words) - 18:36, 19 December 2023
increases the volume of sound by increasing the acoustic impedance seen by the vocal cords, matching the impedance of the vocal cords to the air, so that more...
16 KB (1,718 words) - 18:54, 9 August 2024
acoustic impedance contrast when a hydrocarbon (with a lower acoustic impedance) replaces the brine-saturated zone (with a higher acoustic impedance)...
2 KB (257 words) - 01:54, 13 May 2023
sounds but is insensitive of them because it is designed to match the acoustic impedance of water, a denser fluid than air. Sound travels 4.3 times faster...
10 KB (1,277 words) - 14:23, 26 September 2024
Sonic weapon (redirect from Acoustic weapon)
pockets of gas in the body, which reflect the sound due to mismatched acoustic impedance. Brown note Directional sound Electronic harassment – Delusion regarding...
13 KB (1,350 words) - 17:21, 10 June 2024
Acoustics (redirect from Acoustic measurements and instrumentation)
acoustics Acoustic attenuation Acoustic emission Acoustic engineering Acoustic impedance Acoustic levitation Acoustic location Acoustic phonetics Acoustic streaming...
40 KB (4,286 words) - 02:39, 16 September 2024
how well their acoustical impedances match. Musical instruments are generally designed to radiate sound effectively. A high-impedance part of the instrument...
4 KB (517 words) - 20:26, 15 March 2023
the room. When a wave encounters a change in acoustic impedance, such as hitting a solid surface, acoustic reflections transpire. These reflections will...
6 KB (588 words) - 00:43, 15 August 2024
instrument, this small motion, but which is at a high acoustic pressure (thus a very high acoustic impedance), is partly converted into audible sound in air...
17 KB (2,124 words) - 23:35, 9 June 2024
Absorption (acoustics) (redirect from Acoustic insulator)
sound travels. The fraction of sound absorbed is governed by the acoustic impedances of both media and is a function of frequency and the incident angle...
10 KB (1,134 words) - 21:25, 29 January 2024
four high-quality acoustic impedance volumes from full or post-stack seismic data: full-bandwidth impedance, bandlimited Impedance, reflectivity model...
22 KB (3,002 words) - 16:32, 29 July 2024
describe the combined measure of electrical or acoustic admittance and electrical or acoustic impedance. Immittance was initially coined by H. W. Bode...
5 KB (502 words) - 06:39, 22 August 2024