摘要:
An insulation batt for use in building structures is presented. The insulation batt includes an air flow resistive layer of material provided between portions of insulating material.
摘要:
A device suitable for conducting an on-site measurement of the density and/or R-value of a gas-permeable material is provided. The device comprises a chamber comprising a first port and a second port; a diffuser in fluid communication with the second port of the chamber, wherein the diffuser comprises a diffuser port for conveying a gas flow to or from a gas-permeable material, and wherein the area of the diffuser port is greater than the area of the second port; and a pressure sensor arranged to measure the pressure in the chamber.
摘要:
An acoustical and thermal insulation product suitable for use in an aircraft is provided, comprising an insulation layer formed from a sheet of insulation material, wherein the sheet of insulation material is arranged to form a series of undulations defining a series of alternating upper ridges and lower ridges of the sheet.
摘要:
An acoustical and thermal insulation product suitable for use in an aircraft is provided, comprising: an insulation layer formed from a sheet of insulation material, wherein the sheet of insulation material is arranged to form a series of undulations defining a series of alternating upper ridges and lower ridges of the sheet, and a plurality of elongated reinforcing members for reinforcing the insulation product.
摘要:
A device suitable for conducting an on-site measurement of the density and/or R-value of a gas-permeable material is provided, comprising: a chamber comprising a first port and a second port; a diffuser in fluid communication with the second port of the chamber, wherein the diffuser comprises a diffuser port for conveying a gas flow to or from a gas-permeable material, and wherein the area of the diffuser port is greater than the area of the second port; a pressure sensor arranged to measure the pressure in the chamber; a temperature sensor arranged to measure the temperature of a gas in the chamber; and a relative humidity sensor arranged to measure the relative humidity in the chamber.
摘要:
A device suitable for conducting an on-site measurement of the density and/or R-value of a gas-permeable material is provided. The device comprises a chamber comprising a first port and a second port; a diffuser in fluid communication with the second port of the chamber, wherein the diffuser comprises a diffuser port for conveying a gas flow to or from a gas-permeable material, and wherein the area of the diffuser port is greater than the area of the second port; and a pressure sensor arranged to measure the pressure in the chamber.
摘要:
A system for acoustical performance enhancement, where combinations of component solutions are tested or modeled and given performance ratings. A builder desiring an sound control upgrade forwards project information, such as building plans and the desired performance level, to a design department. The project information is reviewed and a combination of component solutions is determined to increase the performance level of the home to the desired level. The project information is then modified according to the selected combination and presented to the builder. Because the combination of component solutions has been tested and addresses all possible acoustical weak links in the project, confidence of obtaining the final desired performance level in the project is high.
摘要:
Method for conducting an on-site measurement of a density value of an insulation material is provided, comprising: (a) providing an acoustic source for emitting a sound wave; (b) directing the sound wave emitted from the acoustic source through a waveguide and at an insulation material present in a wall, floor or ceiling cavity; (c) measuring a sound pressure in the waveguide to obtain at least one sound pressure measurement; and (d) calculating a density value of the insulation material based on the at least one sound pressure measurement.
摘要:
A system and method for determining an acoustic and/or thermal characteristic of a target material are provided. The system includes an acoustic source arranged to direct a sound wave at a target material; a device for measuring a sound pressure generated by at least the acoustic sensor, to obtain a sound pressure measurement; a density sensor arranged to measure a density of the target material to obtain a density measurement; and an analyzer arranged to receive the sound pressure measurement and the density measurement. The analyzer is capable of determining an acoustic and/or thermal characteristic of the target material based on the sound pressure measurement and/or the density measurement.
摘要:
A system suitable for conducting an on-site measurement of the density and/or R-value of a gas-permeable material, comprising: a device comprising: a chamber comprising a first port and a second port; a diffuser in fluid communication with the second port of the chamber, wherein the diffuser comprises a diffuser port for conveying a gas flow to or from a gas-permeable material, and wherein the area of the diffuser port is greater than the area of the second port; and a pressure sensor arranged to measure the pressure in the chamber; and an analyzer for determining the density and/or R-value of the gas-permeable material based on pressure measurements obtained by the pressure sensor.