NL-31精密声级计/噪音计 /价格/生产厂家/_华东仪表网|上海双旭电子有限公司

NL-31精密声级计产品概述（中文）

NL-31精密声级计是一款由日本理音（RION）公司设计生产的高精度噪音测量仪器，适用于环境监测、建筑声学、工业机械及室内噪音等多种场景的声学分析需求。该设备采用紧凑型设计，整机重量仅400克，便携性优异，配备大型背光液晶显示屏，支持多参数同屏显示。仪器核心功能包括瞬时声压级（Lp）、等效连续声级（Leq）、最大最小声级（Lmax/Lmin）及峰值声级（Lpeak/Lcpeak）等测量，同时支持1/1与1/3倍频程滤波器扩展分析能力。量程范围覆盖28~138dB（A/C计权），频率响应达20Hz~12.5kHz，满足宽动态范围的测量需求。内置数据存储功能可手动保存100组测量数据，并可通过RS-232接口实现数据导出。仪器采用4节五号电池供电，续航时间约27小时，适合长时间户外作业。1 3 14

NL-31 Precision Sound Level Meter (English)

The NL-31 Precision Sound Level Meter, manufactured by RION Japan, is a professional-grade acoustic measurement device designed for environmental monitoring, industrial machinery assessment, and architectural acoustics. With a lightweight body of 400g and ergonomic design, it features a high-contrast LCD with backlight for clear data visualization in various lighting conditions. Key measurement capabilities include real-time analysis of Lp, Leq, Lmax/Lmin, and Lpeak/Lcpeak parameters, complemented by optional 1/1 and 1/3 octave band filters for detailed frequency spectrum analysis. The instrument covers a broad measurement range of 28~138dB with A/C weighting, and achieves accurate results across 20Hz~12.5kHz frequency range. Equipped with 100-data manual storage and USB/RS-232 communication interfaces, it facilitates efficient field data collection. Powered by 4 AA batteries delivering up to 27 hours continuous operation, the NL-31 balances portability with robust performance for diverse noise measurement applications.5 17 22

核心功能与技术特点

该设备采用数字信号处理技术，采样间隔为30.3微秒，确保高精度瞬时测量。动态图表显示功能可实时呈现声级变化趋势，而线性范围达到100dB无需频繁切换量程。仪器配置UC-53A型高灵敏度麦克风，配合内置电气校准功能保障长期稳定性。用户可根据需求同时监测多达8项声学参数，并利用定时功能实现自动间隔测量（支持10秒至24小时多种时长预设）。选购件包括八音度频带实时分析卡、延长电缆等，进一步扩展应用场景。其防水防尘结构设计适应复杂环境，260×76×33mm的紧凑尺寸便于携带。9 15 27

Production Information

The NL-31 series is produced by RION Corporation, a Japanese manufacturer specializing in acoustic measurement instruments since 1954. Main production facilities located in Tokyo utilize automated calibration systems to ensure consistent product quality. Current market offerings include standard configuration units with basic analysis functions, while customized solutions are available for specialized requirements. The device s modular design allows flexible integration of additional sensors or analysis modules according to project needs. Optional accessories such as windshields, tripods, and analysis software enhance operational efficiency in field applications. For extended measurement tasks, an AC adapter can be connected to enable uninterrupted power supply.20 25 28

简单介绍

NL-31精密声级计/噪音计精密声级计/噪音计 NL-21/NL-31日本理音 (RION)公司生产的该仪器重 400 克，可测 Lp 、 Leq 、 Le 、 Lmax 、 Lmin 、 Lx 、 Lpeak 、 Lcpeak 、 Lceq