测试传声器，HS14421

HS14421测试传声器产品概述

HS14421是一款高性能测试电容传声器，专为声学测量仪器设计，采用先进的预极化技术，无需额外极化电压即可实现高精度声电信号转换。该产品适用于环境噪声监测、工业设备声学分析、电声测试等领域，具有频率响应宽（20Hz-12.5kHz）、动态范围大（17~142dB）的特点，能准确捕捉从低频到高频的声学信号。其1/2英寸尺寸设计兼顾便携性与灵敏度，核心部件采用驻极体电容技术，确保长期稳定性与抗干扰能力。传声器标配铝合金防护外壳和风罩，适合室内外复杂环境使用，同时兼容多种声级计型号如HS5633、HS5691等，适配性广泛。

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.

技术特性与适配场景

HS14421的核心优势在于其优化的声学结构和信号处理能力。传声器采用高灵敏度驻极体振膜，开路灵敏度达50mV/Pa，可清晰还原瞬态声波细节。其全指向性设计能均匀捕捉各方向声源，适用于混响场测量。产品标配三脚架接口，便于固定安装进行长期监测，同时支持延伸电缆（可选5m/15m）以扩展测试距离。典型应用包括建筑声学评估、机械设备噪声诊断及科研实验，尤其适合需要高信噪比的场合。

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.

设计与用户体验

产品人体工学设计兼顾操作便利性与防护性，307×80×30mm的紧凑机身可轻松手持或安装于支架。内置时钟功能支持定时测量，配合大尺寸液晶屏实时显示声级、等效连续声级等参数。风罩设计有效降低气流扰动对测试的影响，适用于户外风速较高场景。随机附赠专业铝合金携带箱，为精密部件提供运输保护。

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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