Method for detecting water inlet noise of closestool water tank by using A-weighted sound power level measurement method

A sound power level and noise detection technology, which is applied to the measurement of ultrasonic/sonic/infrasonic waves, measuring devices, and measuring reverberation time, etc., to achieve the effect of improving science

Active Publication Date: 2019-09-17
李文杰
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Problems solved by technology

[0007] The technical problem to be solved in the present invention is to provide a slow time weighting characteristic "S" of the equivalent sound level of the weighted equivalent sound level of the sound level meter to the cumulative percentage sound power level L on the parallelepiped measurement surface. WA(50)

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  • Method for detecting water inlet noise of closestool water tank by using A-weighted sound power level measurement method
  • Method for detecting water inlet noise of closestool water tank by using A-weighted sound power level measurement method
  • Method for detecting water inlet noise of closestool water tank by using A-weighted sound power level measurement method

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[0138] 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.

[0139] In this embodiment, the use mode is top press, double flush, and the double-stage water inlet valve samples with nominal water replenishment amounts of 6L and 3L respectively are installed in the flushing water tank used with the toilet; water is fed under the condition of full flush water replenishment Take noise detection as an example.

[0140] The specific detection method is carried out according to the following steps:

[0141] (1) Sample installation and commissioning

[0142] 1.1 Sample quantity and specifications

[0143] The three types, specifications, and dimensions of the toilet tank fittings from the same manufacturer ...

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Abstract

The invention relates to a method for detecting water inlet noise of a water inlet valve of a closestool water tank. The detection steps comprise: sample mounting and debugging; sound source reference body and measurement surface determination; sound pressure level measurement; sound power level calculation, and background noise, test environment and meteorological condition correction; result evaluation; the method is characterized in that accurate and quantitative detection is performed on the water inlet noise of the water inlet valve characterized by a cumulative percentage sound power level LWA (50) on a parallelepiped measurement surface by using the slow time weighting characteristic "S" of an A-weighted equivalent sound level of a sound level meter; and it is stipulated by the method provided by the invention that A-weighted cumulative percentage time average sound pressure levels L'pAi(ST)(50) and LpAi (B) (50) of the water inlet noise and the background noise are measured on the parallelepiped measurement surface, the sound power level LWA (50) thereof in the specific water supply period is calculated, and a result evaluation basis is provided. By adopting the method provided by the invention, the gap in the technical field of water inlet noise detection of the water inlet valve of the closestool water tank is filled, and a detection technical support can be provided for improving the product quality and regulating the market order.

Description

technical field [0001] The present invention relates to a noise quantitative testing method, specifically a slow-time weighting characteristic "S" of a sound level meter A-weighted equivalent sound level to measure the sound power level L by a cumulative percentage on a parallelepiped surface. WA(50) The invention discloses a method for detecting water inlet noise of a water tank inlet valve of a characterized toilet tank, and belongs to the technical field of physical and chemical performance detection of toilet 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 prevention and control of toilet water tank wat...

Claims

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Application Information

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IPC IPC(8): G01H7/00G01H17/00
CPCG01H7/00G01H17/00
Inventor 李文杰王博冯金艳郝秋伟李丽华
Owner 李文杰
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