測試傳聲器，HS14421

HS14421測試傳聲器產(chǎn)品概述

HS14421是一款高性能測試電容傳聲器，專為聲學(xué)測量儀器設(shè)計，采用先進(jìn)的預(yù)極化技術(shù)，無需額外極化電壓即可實現(xiàn)高精度聲電信號轉(zhuǎn)換。該產(chǎn)品適用于環(huán)境噪聲監(jiān)測、工業(yè)設(shè)備聲學(xué)分析、電聲測試等領(lǐng)域，具有頻率響應(yīng)寬（20Hz-12.5kHz）、動態(tài)范圍大（17~142dB）的特點(diǎn)，能準(zhǔn)確捕捉從低頻到高頻的聲學(xué)信號。其1/2英寸尺寸設(shè)計兼顧便攜性與靈敏度，核心部件采用駐極體電容技術(shù)，確保長期穩(wěn)定性與抗干擾能力。傳聲器標(biāo)配鋁合金防護(hù)外殼和風(fēng)罩，適合室內(nèi)外復(fù)雜環(huán)境使用，同時兼容多種聲級計型號如HS5633、HS5691等，適配性廣泛。

Key Features of HS14421 Test Microphone

The HS14421 is a precision condenser microphone engineered for acoustic measurement systems, featuring a compact 1/2-inch diaphragm and built-in pre-polarization technology for simplified operation. It delivers reliable performance across a broad frequency spectrum (20Hz-12.5kHz) with low inherent noise, making it ideal for applications such as environmental noise mapping, industrial sound analysis, and audio equipment testing. The microphone’s robust construction includes a protective grille and shock-resistant housing, ensuring durability in field conditions. With compatibility for instruments like HS5633 and HS6220 series, it supports seamless integration into existing setups. Its lightweight design (400g without batteries) and battery-powered operation enhance portability for on-site measurements.

技術(shù)特性與適配場景

HS14421的核心優(yōu)勢在于其優(yōu)化的聲學(xué)結(jié)構(gòu)和信號處理能力。傳聲器采用高靈敏度駐極體振膜，開路靈敏度達(dá)50mV/Pa，可清晰還原瞬態(tài)聲波細(xì)節(jié)。其全指向性設(shè)計能均勻捕捉各方向聲源，適用于混響場測量。產(chǎn)品標(biāo)配三腳架接口，便于固定安裝進(jìn)行長期監(jiān)測，同時支持延伸電纜（可選5m/15m）以擴(kuò)展測試距離。典型應(yīng)用包括建筑聲學(xué)評估、機(jī)械設(shè)備噪聲診斷及科研實驗，尤其適合需要高信噪比的場合。

Application Scenarios and Advantages

Designed for versatility, the HS14421 excels in both laboratory and field environments. Its omnidirectional response captures sound waves uniformly, while the integrated preamplifier minimizes signal loss during long-distance transmission (optional extension cables available). Common use cases include automotive NVH testing, acoustic product development, and occupational health monitoring. The microphone’s low power consumption (5xAA batteries or 9V DC input) and data storage capability (up to 1000 datasets) facilitate extended unattended operation. User-friendly features like automatic time-weighting (Fast/Slow) and RS-232C data export further streamline workflow efficiency.

設(shè)計與用戶體驗

產(chǎn)品人體工學(xué)設(shè)計兼顧操作便利性與防護(hù)性，307×80×30mm的緊湊機(jī)身可輕松手持或安裝于支架。內(nèi)置時鐘功能支持定時測量，配合大尺寸液晶屏實時顯示聲級、等效連續(xù)聲級等參數(shù)。風(fēng)罩設(shè)計有效降低氣流擾動對測試的影響，適用于戶外風(fēng)速較高場景。隨機(jī)附贈專業(yè)鋁合金攜帶箱，為精密部件提供運(yùn)輸保護(hù)。

User-Centric Design

The ergonomic housing (307mm×80mm×30mm) features a 64×128 dot-matrix LCD for clear parameter visualization, including real-time Leq/Lmax readings. The detachable windscreen reduces airflow interference, and the included carrying case ensures safe storage. With intuitive controls for manual/auto measurement modes and HOLD function for peak value retention, the HS14421 simplifies complex acoustic assessments for both experts and technicians.

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