摘要 |
<p>A high-accuracy noise measurement method for an individual, characterized in that a noise measurement device for an individual can be fixed on a safety helmet (5), said device being provided with two microphones (1, 2), the microphones (1, 2) being at the same height as the ears, and the left and right sides each being provided with one microphone (1, 2). A measurement result can respectively display and record a left ear noise strength, a right ear noise strength and a mean noise strength of the left and right ears, and at the same time can respectively calculate an equivalent continuous A sound level. The present device can be easily carried by an individual subject to measurement, and the microphones (1, 2) are consistently at the same height as the ears when a worker is at work, thereby ensuring the accuracy of a noise measurement result for an individual.</p> |
申请人 |
STATE GRID CORPORATION OF CHINA;JILIN PROVINCE ELECTRIC POWER RESEARCH INSTITUTE OF JILIN ELECTRIC POWER COMPANY LIMITED;JILIN PROVINCE ELECTRIC POWER RESEARCH INSTITUTE COMPANY LIMITED;JILIN ELECTRIC POWER SURVEY DESIGN INSTITUTE;HEALTH SUPERVISION INSTITUTE OF NANGUAN DISTRICT MUNICIPAL HEALTH BUREAU OF CHANGCHUN CITY |
发明人 |
WANG, XIN;SUN, CHENGXUN;ZHU, BAOYU;YAN, SHUMEI;CHEN, CHENG;SUN, DONGDONG |