声压就是大气压受到声波扰动后产生的变化，即为大气压强的余压，它相当于在大气压强上的叠加一个声波扰动引起的压强变化。由于声压的测量比较容易实现，通过声压的测量也可以间接求得质点速度等其它物理量，所以声学中常用这个物理量来描述声波。英文名：sound pressure。
在这一期，我们一起来学习一下声压（ Sound Pressure Level ）是怎么回事。所谓声压，就是声音给人的身体尤其是听觉系统的鼓膜带来的压力。
基于4060个网页-相关网页
...功能 5x365x365(mm)重量(每只):215kg频响:45hz-18khz ±3db单元:2 名称:ktv音箱型号:kv-1000品牌:灵敏度(1瓦/1公尺):最大声压(spl):标准阻抗:4欧姆覆盖角度:90度圆锥插座:配件:体积(阔x高x深):555x365x365(mm)重量(每只):21.5kg频响:45hz-18khz±3db单元:2 [x365...
基于294个网页-相关网页
... U机架安装电缆深度 电缆深度200 mm重量 最多14 kg重量说明 实际重量根据配置而定机架集成套件 机架集成套件可选环境声压 (LpAm) 24/30 dB(A)(min/max idle),28.5/53.55db(A) (min/max operating)声音功率(LWAd; 1B = 10dB) 3.7/4.3 B(min/max idle),4.2/6.8(...
基于52个网页-相关网页
声压级 [声] sound pressure level ; SPL ; acoustic pressure level ; Max SPL
输出声压 Sensitivity ; Sound Pressure Level
最大声压 [声] Maximum sound Pressure ; Maximum ; SPL ; dB
最大声压级 SPL ; maximum sound pressure level ; Max SPL ; max sound level
峰值声压 [声] peak sound pressure ; Maximum Continuous SPL ; Maximum Spl Peak ; excess sound pressure
透声压力容器 acoustically transparent pressure vessel
瞬时声压 [声] instantaneous sound pressure ; instantaneous acoustic pressure
声压值 sound pressure level ; sound pressure value
声压计 sound pressure meter ; sound pressure level
Traditional technique used in sonar design had employed array composed by scalar hydrophones, which can only give the sound pressure at receiving position, and could not thoroughly get all informations about sound field.
目前一般使用的检测方法是利用声压水听器阵来探测潜艇，这时只能获得声场的标量参数，不能充分的获得声场的全部信息。
参考来源 - 微型矢量水听器研究Experimental results also show that the acoustic pressure frequencies measured by the method of acoustic response are practically equal to those of combustion pressure oscillation in a D. I. diesel engine.
实验还表明，通过声响应法测量的声压波动共振频率与燃烧压力振荡共振频率是基本相等的。
参考来源 - 用声响应法测量直喷式柴油机燃烧压力振荡共振频率的研究The directivity of the Ultrasonic Audio Beam Transducer was studied in this paper. To determine the directivity of the beam, sound pressure of the transducer was calculated.
论文提出了计算超声波换能器阵列发出的声音定向性的分析方法,此方法通过计算换能器阵列声压的大小来判断声音的方向性,同时研究了换能器尺寸参数及其阵列的单元个数和阵列方式等对声音定向性的影响。
参考来源 - 声频定向超声波换能器的研究·2,447,543篇论文数据，部分数据来源于NoteExpress
他的嗓门提得很高，说的话都被他的叫喊声压得听不清了。
His voice was pitched high, the words muffled by his crying.
发言者完全被叫嚷声压住了，教室一片混乱，老师们不得不低声下气。
Speakers have been shouted down, classes disrupted, teachers made to grovel.
推导出了此类换能器的远场指向性和近场声压的表达式。
The eXpression of directivity of far field and near field was derived.
应用推荐