RMS sound pressure definition

RMS sound pressure means the square root of the time averaged square of the sound pressure, denoted Prms.
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RMS sound pressure means the square root of the timed averages square of the sound pressure.
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Examples of RMS sound pressure in a sentence

  • Lmax is the highest RMS (root mean squared) sound pressure level within the measurement period, and Lmin is the lowest RMS sound pressure level within the measurement period.The time period in which noise occurs is also important since nighttime noise tends to disturb people more than daytime noise.

  • During this period, as specified in Table 2, no surveys with RMS sound pressure levels > 180 dB re 1 uPa at 1 meter for equipment that operates between 7 Hz and 35 kHz shall occur.

  • For continuous sounds, NMFS Northwest Region has provided guidance for reporting RMS sound pressure levels.

  • Sound pressure level means 20 times the logarithm to the base ten of the ratio of the RMS sound pressure to the reference pressure of 20 micropascals.

  • Contemporary Indian Philosophy—Vivekanda’s Karma-Yoga, Tagore’s Humanism.

  • Root Mean Square (RMS) sound pressure levels (SPLs) shall be expressed by the descriptors L(max) and Leq(h).

  • The sound power level of a source, LW, in units of decibels (dB), and is given by:LW = 10 log10 (P P0 )with P equal to the sound power level in units of power density and P0 a reference sound power (often P0 = 2 x 10-5 N/m2).The sound pressure level (SPL) of a sound, LP, in units of decibels (dB), is given by:Lp = 20 log10 (p p0 )with p equal to the effective (or root mean square, RMS) sound pressure and p0 a reference RMS sound pressure (usually 2x10-5 Pa).

  • Twenty (20) times the logarithms to the base 10 of the ratio of the root mean squared (RMS) sound pressure to the reference pressure of twenty (20) micronewtons per square meter.

  • The spectral centroid at the plane of the bell is plotted against normalized RMS sound pressure at the mouthpipe.

  • Specifically, the root-mean-square (RMS) sound pressure level (SPL) will be measured in the following 1-octave bands: 0-2 kHz, 2-4 kHz, 4-8 kHz, 8-16 kHz and 16-32 kHz.

Related to RMS sound pressure

  • Sound pressure level means twenty times the logarithm to the base 10 of the ratio of the effective pressure (µPa) of a sound to the reference pressure of 20 µPa;

  • Backpressure means a pressure (caused by a pump, elevated tank or piping, boiler, or other means) on the consumer's side of the service connection that is greater than the pressure provided by the public water system and which may cause backflow.

  • Reid vapor pressure means the vapor pressure of crude oil or other volatile petroleum products at 100 degrees Fahrenheit as determined by the latest edition of ASTM D6377 (RVPE): Standard Test Method for Determination of Vapor Pressure of Crude Oil.

  • Negative pressure respirator (tight fitting) means a respirator in which the air pressure inside the facepiece is negative during inhalation with respect to the ambient air pressure outside the respirator.

  • Positive pressure respirator means a respirator in which the pressure inside the respiratory inlet covering exceeds the ambient air pressure outside the respirator.

  • Biodiesel means a fuel composed of mono-alkyl esters of long chain fatty acids derived from vegetable oils or animal fats, and, in accordance with standards specified by the American society for testing and materials, designated B100, and meeting the requirements of D-6751, as approved by the department of agriculture.

  • Operating pressure means the pressure at which the parts of an irrigation system are designed by the manufacturer to operate.

  • True vapor pressure means the equilibrium partial pressure exerted by a petroleum liquid as determined in accordance with methods described in American Petroleum Institute (API) Bulletin 2517, Evaporation Loss from External Floating Roof Tanks, 1980. The API procedure may not be applicable to some high viscosity or high pour crudes. Available estimates of true vapor pressure may be used in special cases such as these.

  • Attachment point means a point on the network at which network assets are connected to assets owned by another person.

  • Sorbent means a material that is used to soak up free liquids by either adsorption or absorption, or both. “Sorb” means to either adsorb or absorb, or both.

  • Pressure means the total load or force per unit area acting on a surface.

  • Delivery Point means the point(s) of connection(s) at which energy is delivered into the Grid System i.e. the Interconnection Point.

  • PNode has the meaning set forth in the CAISO Tariff.

  • Diatomaceous earth filtration means a process resulting in substantial particulate removal in which a precoat cake of diatomaceous earth filter media is deposited on a support membrane (septum), and while the water is filtered by passing through the cake on the septum, additional filter media known as body feed is continuously added to the feed water to maintain the permeability of the filter cake.

  • Biomass means the biodegradable fraction of products, waste and residues from biological origin from agriculture (including vegetal and animal substances), forestry and related industries including fisheries and aquaculture, as well as the biodegradable fraction of industrial and municipal waste;

  • Delivery Points means: (i) for natural gas transported by interstate pipelines, the city gate stations of your Utility, and (ii) for electricity, one or more points at which Company, as your agent, has arranged for the delivery of electricity to a third party (such as your Utility) for your account or at your premises.

  • Biodiesel blend means a fuel comprised of a blend of biodiesel fuel with petroleum-based diesel fuel, suitable for use as a fuel in a compression-ignition internal combustion diesel engine.

  • Oxides of nitrogen means the sum of the volume mixing ratio (ppbv) of nitrogen monoxide (nitric oxide) and nitrogen dioxide expressed in units of mass concentration of nitrogen dioxide (µg/m3);

  • Feedstock means a solid waste that will readily decompose during the composting process including but not limited to yard waste, agricultural waste, animal waste, food scraps, animal carcasses, raw rendering material, and mixed solid waste.

  • Gasification means the substoichiometric oxidation or steam reformation of a substance to produce a gaseous mixture containing two or more of the following: (i) oxides of carbon; (ii) methane; and (iii) hydrogen;

  • Grab sample means an individual sample collected in less than 15 minutes in conjunction with an instantaneous flow measurement.

  • Ethanol means a high octane gasoline blend stock that is used to make various grades of gasoline.

  • High-temperature coating means a high performance coating labeled and formulated for application to substrates exposed continuously or intermittently to temperatures above 204oC (400oF).

  • Feedstock Gas means natural gas used as a raw material for its chemical properties in creating an end product.

  • Working pressure means the maximum pressure to which a component is designed to be subjected to and which is the basis for determining the strength of the component under consideration. For CNG cylinder, the settled pressure of 20 MPa at a uniform temperature of 15 C. For LNG tank, the pressure of the LNG tank primary relief valve setting.

  • API means the American Petroleum Institute.