Study And Application Of Household Appliance Noise Measurement Technology

With the improvement of people's quality of life,and household appliances more and more used to life. Household appliances to provide comfort and convenience at the same time,the noise also affects people's work and life. Study on noise testing of household appliances is particularly important.At present most anechoic rooms can't be ventilated in our country.However there must be ventilated in some anechoic rooms for many special experiments.In the design of this kind of anechoic room,the noise of fan and the noise of airflow must be considered.The analysis and measures of ventilated strongly hemi-anechoic room's noise will be discussed firstly in this article from theory. Proposed multi-storey complex,onsite Assembly of sound insulation plates and tested proved to have excellent sound insulation and insulating properties,used in the design of impedance compound muffler pipes at the same time to meet sound,sound absorption,thermal insulation,ventilation and a wide range of performance requirements. Anechoic chamber is realized not only to condition test requirements,and meet the demand for research and development of low noise level to meet the testing requirements for all kinds of household electrical appliances.Also to study the construction of anechoic chamber in a complex environment,can make relatively low requirement of anechoic chamber built in plant or production line ends in a complex environment.To put the plant into an anechoic chamber.Dramatically reduce the cost of construction of the anechoic chamber,shortening the construction period.After the successful development of the project,line noise condition test room received considerable promotion.And apply to the testing of all kinds of household electrical appliances.Household appliance noise research in China is still very weak,both in terms of software and hardware.Design of acoustic environment noise studies to provide the necessary premises for the entire industry,level of research can enhance the industry as a whole.