Pressure amplitude definition

Pressure amplitude means the in- stantaneous value of the modulating waveform, and is p1(t) in the expression for a pressure wave, p(t)=p1(t) p2(t), where p(t) is the instantaneous pres- sure, p1(t) is the modulating envelope, and p2(t) is the relative amplitude of the carrier wave normalized to a peak height of one. All are periodic func- tions of time, t, at any point in space. The period of p1(t) is greater than the period of p2(t).
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Examples of Pressure amplitude in a sentence

  • Pressure amplitude values are shown as decibel-scaled values relative to the maximum calculated pressure.

  • YPG PET is sector based training, up to eight weeks, that can be accompanied by a Work Trial.

  • Pressure amplitude was measured near the regenerator in the engine and few temperature measurements were taken near the HHX.

  • In 2015, the Board of Directors of the individual water agencies authorized advanced payments to the QSA JPA totaling $40.5 million, consisting of $10 million from the Water Authority, $5 million from CVWD, and $25.5 million from IID, scheduled over six years beginning in FY 2016.

  • Pressure amplitude was calculated as the difference between baseline and peak pressure.

  • Pressure amplitude (a.u.)0.80.60.40.20Position (cm)15105 (g) 10 20 30Position (cm) 15Position (cm)105 (h) 10 20 30Position (cm)Figure 4 | Experimental results.

  • Oscilloscope gives the Pressure amplitude and Frequency of the pressure wave.

  • Pressure amplitude distribution plots for the transducer (both elements driven with the same frequency).

  • Simulation of the sound field and resulting primary Bjerknes force for 5 lm air bubbles in water, with an emitter displacement amplitude is U0 = 5 lm at 20 kHz. (a) Pressure amplitude profile.

  • Figure 26: Pressure amplitude at different positions in the corpuscle for sinusoidal stimulation at various frequencies.

Related to Pressure amplitude

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

  • 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.

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

  • Pressure vessel means containers for the containment of pressure, either internal or external. This pressure may be obtained from an external source or by the application of heat from a direct or indirect source, or any combination thereof.

  • 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.

  • 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.

  • 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.

  • Working pressure means the settled pressure of a compressed gas at a reference temperature of 15 °C in a full pressure receptacle;

  • Diameter means the diameter of the stem of a tree measured outside the bark at a specified point of measurement.

  • Design pressure means the hydrostatic pressure for which each structure or appliance assumed watertight in the intact and damage stability calculations is designed to withstand.

  • Altitude means the vertical distance of a level, a point or an object considered as a point, measured from mean sea level (MSL);

  • Low water pressure means water pressure below the regulatory reference level which is the minimum pressure when demand on the system is not abnormal.

  • Drum means any cylindrical metal shipping container of 13 to 110 gallon capacity.

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

  • Exfiltration means any unauthorized release of data from within an information system. This includes copying the data through covert network channels or the copying of data to unauthorized media.

  • Septage means the liquid and solid material pumped from a septic tank, cesspool, or similar domestic sewage treatment system, or from a holding tank, when the system is cleaned or maintained.

  • Electrostatic spray means a method of applying a spray coating in which opposite electric charges are applied to the substrate and the coating. The coating is attracted to the substrate by the electrostatic potential between them.

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

  • Sewage sludge weight means the weight of sewage sludge, in dry U.S. tons, including admixtures such as liming materials or bulking agents. Monitoring frequencies for sewage sludge parameters are based on the reported sludge weight generated in a calendar year (use the most recent calendar year data when the NPDES permit is up for renewal).

  • Output means the exposure rate, dose rate, or a quantity related in a known manner to these rates from a brachytherapy source or a teletherapy, remote afterloader, or gamma stereotactic radiosurgery unit for a specified set of exposure conditions.

  • borehole means a hole sunk into the earth for the purpose of locating, abstracting or using subterranean water and includes a spring;

  • Vapor tight means equipment that allows no loss of vapors. Compliance with vapor-tight requirements can be determined by checking to ensure that the concentration at a potential leak source is not equal to or greater than 100 percent of the lower explosive limit (LEL) when measured with a combustible gas detector, calibrated with propane, at a distance of 1 inch (2.54 cm) from the source.

  • Nitrogen oxides means nitric oxide and nitrogen dioxide, expressed as nitrogen dioxide (NO2);

  • Solids means the nonvolatile portion of the coating that after drying makes up the dry film.

  • Infiltration means water other than wastewater that enters a sewer system (including sewer system and foundation drains) from the ground through such means as defective pipes, pipe joints, connections, or manholes. Infiltration does not include, and is distinguished from, inflow.

  • Edge of any water means the outer edge of the water's bankfull width or, where applicable, the outer edge of the associated channel migration zone.