Method for detecting water intake noise of toilet water tank by A-weighted sound energy level measurement method
A technology of energy level and noise detection, which is applied in the direction of measuring ultrasonic/sonic/infrasonic waves, measuring devices, instruments, etc., to achieve the effect of improving scientificity
Active Publication Date: 2019-08-23
李文杰
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[0006] The technical problem to be solved in the present invention is to provide a fast time-weighted characteristic "F" of the A-weighted equivalent sound level of the application sound level meter to the cumulative percentage sound energy level L on the parallelepiped measurement surface. JA(10) The met
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[0141] The following describes the present invention in detail with reference to the accompanying drawings and preferred embodiments, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so as to make a clearer and clearer definition of the protection scope of the present invention.
[0142] In this embodiment, the water inlet valve samples with nominal water replenishment volumes of 6L and 3L are installed in the flushing water tank matched with the toilet; the water inlet noise is detected under the condition of full-flush water replenishment. Take it as an example.
[0143] The specific detection method is carried out according to the following steps:
[0144] (1) Sample installation and commissioning
[0145] 1.1 Sample quantity and specifications
[0146] The three types, specifications, and dimensions of the toilet tank fittings from the same manufacturer and batch are taken as a set of water inlet valve samples. ...
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The invention relates to a method for detecting water intake noise of an intake valve of a toilet water tank. The detection includes the following steps: sample installation and debugging; sound source reference body and measurement surface determination; sound pressure level measurement; sound energy level calculation and background noise, test environment and meteorological condition correction;and result evaluation. The method is characterized in that fast-time weighting characteristic ''F'' of an A-weighted equivalent sound level of a sound level meter is used to precisely and quantitatively detect water intake noise of the intake valve of the toilet water tank characterized by a cumulative percentage sound power level L<JA(10)> on a parallelepiped measurement surface. The method of the invention prescribes the determination of a cumulative percentage time integral sound pressure level L'<EAi,q(ST)(10)> (q=1,2,...,Ne, Ne>=5) of a single event in continuous Ne water intake noise emission events at microphone positions on a parallelepiped measurement surface and a cumulative percentage time average sound pressure level L<pAi(B)(10)> of background noise, calculates the sound energy level L<JA(10)> in a specific water supplementing period, and provides a result evaluation basis. The method for detecting the water intake noise of the toilet water tank by an A-weighted sound energy level measurement method fills the blank in the technical field of detection of water intake noise of intake valves of toilet water tanks, realizes the scientificity of the method and the comparability of results, and can provide detection technical support for improving a production process and standardizing market order for enterprises.
Description
technical field [0001] The present invention relates to a noise quantitative testing method, specifically a fast time weighting characteristic "F" of the A-weighted equivalent sound level of the sound level meter is used to measure the sound energy level L by the cumulative percentage on the parallelepiped measurement surface. JA(10) The invention discloses a method for detecting water inlet noise of a water inlet valve of a water tank of a characterized toilet, and belongs to the technical field of physical and chemical performance detection of toilet water tank accessories. Background technique [0002] In recent years, as a basic livelihood issue and an important window of civilization, the construction quality of toilets cannot be ignored. With the increasing use of toilets and water tank accessories in key areas of livelihood such as catering, tourism, and home, and the enhancement of people's awareness of health and environmental protection , The noise monitoring and p...
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Login to view more IPC IPC(8): G01H17/00G06F17/18
CPCG01H17/00G06F17/18
Inventor 李文杰王博田俊郝秋伟李丽华
Owner 李文杰
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