NL-31精密聲級(jí)計(jì)/噪音計(jì) /價(jià)格/生產(chǎn)廠家/

NL-31精密聲級(jí)計(jì)產(chǎn)品概述（中文）

NL-31精密聲級(jí)計(jì)是一款由日本理音（RION）公司設(shè)計(jì)生產(chǎn)的高精度噪音測(cè)量?jī)x器，適用于環(huán)境監(jiān)測(cè)、建筑聲學(xué)、工業(yè)機(jī)械及室內(nèi)噪音等多種場(chǎng)景的聲學(xué)分析需求。該設(shè)備采用緊湊型設(shè)計(jì)，整機(jī)重量?jī)H400克，便攜性優(yōu)異，配備大型背光液晶顯示屏，支持多參數(shù)同屏顯示。儀器核心功能包括瞬時(shí)聲壓級(jí)（Lp）、等效連續(xù)聲級(jí)（Leq）、最大最小聲級(jí)（Lmax/Lmin）及峰值聲級(jí)（Lpeak/Lcpeak）等測(cè)量，同時(shí)支持1/1與1/3倍頻程濾波器擴(kuò)展分析能力。量程范圍覆蓋28~138dB（A/C計(jì)權(quán)），頻率響應(yīng)達(dá)20Hz~12.5kHz，滿足寬動(dòng)態(tài)范圍的測(cè)量需求。內(nèi)置數(shù)據(jù)存儲(chǔ)功能可手動(dòng)保存100組測(cè)量數(shù)據(jù)，并可通過RS-232接口實(shí)現(xiàn)數(shù)據(jù)導(dǎo)出。儀器采用4節(jié)五號(hào)電池供電，續(xù)航時(shí)間約27小時(shí)，適合長(zhǎng)時(shí)間戶外作業(yè)。1314

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.51722

核心功能與技術(shù)特點(diǎn)

該設(shè)備采用數(shù)字信號(hào)處理技術(shù)，采樣間隔為30.3微秒，確保高精度瞬時(shí)測(cè)量。動(dòng)態(tài)圖表顯示功能可實(shí)時(shí)呈現(xiàn)聲級(jí)變化趨勢(shì)，而線性范圍達(dá)到100dB無需頻繁切換量程。儀器配置UC-53A型高靈敏度麥克風(fēng)，配合內(nèi)置電氣校準(zhǔn)功能保障長(zhǎng)期穩(wěn)定性。用戶可根據(jù)需求同時(shí)監(jiān)測(cè)多達(dá)8項(xiàng)聲學(xué)參數(shù)，并利用定時(shí)功能實(shí)現(xiàn)自動(dòng)間隔測(cè)量（支持10秒至24小時(shí)多種時(shí)長(zhǎng)預(yù)設(shè)）。選購件包括八音度頻帶實(shí)時(shí)分析卡、延長(zhǎng)電纜等，進(jìn)一步擴(kuò)展應(yīng)用場(chǎng)景。其防水防塵結(jié)構(gòu)設(shè)計(jì)適應(yīng)復(fù)雜環(huán)境，260×76×33mm的緊湊尺寸便于攜帶。91527

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.202528

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