文章摘要
张明铎,蒋渭鑫.检定声级计有关性能用猝发声的研究[J].,2003,22(4):45-48
检定声级计有关性能用猝发声的研究
Study on the tone burst used to check the performances of sound levelmeters
  
中文摘要:
      在相关标准中,规定检定声级计有关性能用的猝发声必须‘零起零落”。本文通过实验验证指出,猝发声“零起零落”与否,对声级计的检定结果有明显影响,但其差别远小于相应客差的1/10,这一差别对计量检定要求来说是很小的,可忽略不计。因而,在声级计检定中没有必要强调猝发声必须“零起零落”。
英文摘要:
      It is demanded in the correlative standards that the tone burst, used for inspecting sound level meters, must be "0-on and 0-off". This paper makes some experimental study on the influence of this requirement. The results show that whether the tone burst is "0-on and 0-off" or not, it will affect the results of check up. However, the difference between the two results is much smaller than 1/10 of the correlative tolerances such that it can be ignored for the inspection purpose. Thus, it seems not necessary to stress that the tone burst must be "0-on and 0-off" in inspecting sound level meters.
DOI:10.11684/j.issn.1000-310X.2003.04.012
中文关键词: 声级计  猝发声  计量检定
英文关键词: Sound level meter  Tone burst  Verification
基金项目:
作者单位
张明铎 陕西师范大学应用声学研究所 西安 710062 
蒋渭鑫 陕西师范大学应用声学研究所 西安 710062 
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