The newly-built electro-acoustic standard device of Jining Institute in Shandong passed the assessment

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With the development of economy and the improvement of material and cultural living standards, environmental protection work has become increasingly important. Noise has become an important indicator to measure the economic development and ecological harmony of a country. Sound level meter (noise meter), noise statistic analyzer, and sound calibrator are instruments used to measure the sound pressure level or sound level of a sound. The “Measurement Method” lists it in the mandatory test list, which is the most The basic and most commonly used instruments are not only used in acoustic and electroacoustic measurements, but have also been widely used in various fields such as machine manufacturing, architectural design, transportation, environmental protection, medical and health, and national defense engineering. Noise and noise surveys are carried out in an all-round way in life and production. The machine manufacturing industry places noise as one of the important quality indicators of products. Auditoriums, theaters, stadiums, and other buildings require not only beautiful shapes but also sound effects. These all make electric sound The use of measuring instruments has become more and more extensive and has become an essential electroacoustic measuring instrument.

Jining City, the new electro-acoustic standard device for measurement testing, can carry out the scope of detection include: one, two sound level meter; one, two noise analyzer; one, two sound calibrator. The establishment of this standard device has filled the gaps in the compulsory verification of electroacoustic fields in Jining City, and provided accurate acoustic equipment for use in the fields of machine manufacturing, architectural design, transportation, environmental protection, medical and health, and national defense engineering. Reliable technical support and support.

(Original title: Jining City Metrology Institute: New electro-acoustic standard device fills the city's electro-acoustic metrology inspection blank)