Holmberg K, Landström U, Nordström B
National Institute of Occupational Health, Umeå, Sweden.
Percept Mot Skills. 1995 Dec;81(3 Pt 1):819-27. doi: 10.2466/pms.1995.81.3.819.
Annoyance and discomfort during exposure to high-frequency noise from an ultrasonic washer have been examined in the experiments carried out with 10 subjects. After a short exposure during which the subjects rated their annoyance and discomfort, a broad-band noise was matched to the ultrasound. The subjects were exposed to three different levels of ultrasound on three different occasions. Analyses showed that ultrasound causes considerable annoyance and discomfort even for the lowest exposure levels. No significant difference between annoyance and discomfort was observed. The matchings indicated, however, that the A-weighting, i.e., the traditional rating technique used for noise evaluations, overestimated the high-frequency sound when evaluating annoyance and discomfort.
在对10名受试者进行的实验中，研究了接触超声波清洗机高频噪声时的烦恼和不适情况。在短暂暴露期间，受试者对自己的烦恼和不适程度进行了评分，之后将宽带噪声与超声波进行匹配。受试者在三种不同情况下分别暴露于三种不同水平的超声波中。分析表明，即使是最低暴露水平，超声波也会引起相当程度的烦恼和不适。未观察到烦恼和不适之间存在显著差异。然而，匹配结果表明，A加权法，即用于噪声评估的传统评级技术，在评估烦恼和不适时高估了高频声音。
