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  产品与解决方案     NVH    产品总览    NVH 双耳记录系统概述    HMS IV - 产品描述
HMS IV - HEAD 测试系统
  目前对应HMS III、HMS IV和BEQII必需的固件更新。
When running a recording with an HMS III, HMS IV or a BEQ II while synchronously online monitoring the recording, there might occur strong overloads during a range shift (reduction of the recording range).
The occurring overloads injure the sense of hearing seriously.
Using the current firmware for the afore-mentioned recording devices prevents overloads during the range shift by means of a delayed fading.
We strongly recommend all our customers to keep all existing HMS III, HMS IV and BEQ II recording systems updated to the latest firmware and thus to protect yourself from a possible danger and to benefit from the continuing improvements of the products.
The firmware can be downloaded from the download area of our website:
  https://www.head-acoustics.com/eng/essential_firmware_update.php
If you do not have the access data to this website available, please apply to your HEAD acoustics contact.
人工头的几何结构为您提供:
可数学描绘、具备一流设计水准的头部和肩部高仿模型
人体外耳所有声学相关部件的精准高仿模型
 
开机-记录-完成!
HMS IV是一个可独立运行、移动性强的测试系统,开机后即可直接进行精准的双耳声学测试。
无需电脑,独立采集并将数据存储于CF卡中。记录的数据经过精准的均衡后可通过耳机直接回放。
人工头测试系统HMS IV与传统的测试技术兼容,是还原声场真实听觉感受的必然之选。
应用范围
技术产品的声品质检测及优化:汽车整车、汽车零部件、家用电器、办公设备及电动工具等
产品研发和质量管理时的双耳测试
声学测试和产品优化
针对声压级极低的测试工况,建议使用    人工头麦克风 HSU III.3
 
海德声学(上海)科技有限公司

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