介绍
噪声剂量计是一种用于追踪个体在工作周期内所受噪声量的个人暴露测量仪器。它们在职业健康、工业安全、环境保护和合规方面发挥着至关重要的作用。随着人们对听力损伤的认识不断提高、法规日益严格以及高噪声行业（制造业、建筑业、石油和天然气业、运输业）的发展，噪声剂量计市场持续增长。
噪声剂量计市场预计将从 2023 年的 6.9174 亿美元增长到 2031 年的 10.0422 亿美元，2023 年至 2031 年的复合年增长率 (CAGR) 为 4.4%。
市场增长动力与战略
更严格的健康与安全法规：大多数地区（美国、欧盟、部分亚洲地区）的政府都已制定了每日噪音暴露限值。雇主要求进行剂量测定以确保合规。
工业化和城市化：特别是在亚太地区、拉丁美洲、中东和非洲地区，制造业、建筑业和基础设施的扩张导致环境更加嘈杂，因此对监控的需求也随之增加。
Technological innovation: Miniaturization, wireless networking (Bluetooth, IoT), cloud platforms, improved battery life, tough design, intrinsically safe models for hazardous areas. These innovations are making dosimeters easier to use and for various conditions.
Integration with overall occupational health systems: Information utilized not just for compliance but also for risk evaluation, predictive maintenance, choice of hearing protectors, etc. Monitoring platforms with dashboards, data access through remote retrieval, and alarms become more critical.
Companies are responding by employing these growth strategies:
Investment in R&D to introduce value added features (wireless, cloud, connectivity, audio recording, improved analytics).
Strategic partnerships to merge hardware + software or grow regionally.
Creating product lines designed for emerging market price sensitivity without sacrificing regulatory requirements.
Certifications (intrinsic safety, Class 1/2, etc.) to penetrate hazardous or industrial markets.
Emphasizing user comfort (wearability, weight, battery life) to maximize adoption.
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Key Segments
By Type
Software
Hardware
By Device Placement
On-body Noise Dosimeter
Free-Field Noise Dosimeter
In/Near Ear Noise Dosimeter
By Application
Aerospace and Defense
Automotive
Construction
Factories and Enterprises
Future Trends & Opportunities
IoT enabled & Cloud based monitoring: Real time sending of data from devices to dashboards, predictive analytics to predict hearing risk before reaching regulatory thresholds.
Wearables & miniaturization: Lighter and smaller devices that are not noticeable so that workers are more comfortable wearing them for long shift durations without any discomfort. More battery life, robust components (shock, dust, moisture proof).
Multi function & frequency analysis: More devices will feature octave/one third octave band filters, dual channel/multi channel measurement (ear to ear, under headset, etc.), audio recording for source identification.
Regulation tightening & standard convergence: As more nations subscribe or update noise exposure legislation or directives, there's pressure on devices to provide higher accuracy, intrinsic safety, environmental conditions, etc. Standards such as ISO, ANSI, EU Directives, etc.
Growth in emerging economies: India, China, Southeast Asia, Latin America and Africa will experience greater growth rates, both as a result of industry expansion + greater regulatory supervision. Cost conscious. But also want good functionality. Local vendors can come up with lower cost substitutes.
Key Players with Latest Developments
Bruel & Kjaer
Bruel & Kjaer has strengthened its portfolio of noise monitors with the launch of an intrinsically safe version of the Type 4445E noise dose meter. This instrument complies with the ATEX certification codes of EEx ia I M1 and EEx ia IIC T4 II 1 G, enabling it to be used in hazardous environments. The unit records sound pressure levels and computes the 'noise dose' received by workers over their working day, allowing compliance with occupational health legislation.
In March 2024, Bruel & Kjaer introduced the Type 2250 series of portable sound level meters with sophisticated AI-based analytics for real-time interpretation of noise data. The innovation will improve environmental and occupational noise surveys, making Bruel & Kjaer a front runner in the deployment of sophisticated technologies in noise measurement
Casella
Casella, an IDEAL INDUSTRIES, INC., has been a leading innovator in noise dosimeter technology. The dBadge2 has gained Western European Legal Metrology Cooperation (WELMEC) approval in Spain, confirming its compliance with the global standard IEC 61252. The certification maintains confidence in measured outcomes and enables downloaded data to be legally recalled and validated.
Casella has also redesigned the dBadge to make it more rugged, with rubber over-moulding for added durability and water and dust resistance. The company also launched the CEL-350L dBadge 'Lite', which provides basic functionality at a low price, ideal for users that require uncomplicated noise dose results
CESVA Instruments
CESVA Instruments SLU, a European company that deals with noise measurement technology, was acquired by TSI Incorporated in July 2024. The acquisition is intended to strengthen the product portfolio of TSI in the business of noise dosimeters through merging CESVA's technological advancements with TSI's strong distribution presence for the betterment of the global market.
CESVA DC112 dosimeter features real-time measurement of noise, 1/1 octave frequency filter, and high memory storage capacity, and it is suitable for the measurement of noise in accordance with Directive 2003/10/CE
Challenges
Guaranteeing accuracy of measurement in field conditions (temperature, humidity, interference).
Cost of calibration, maintenance, and quality assurance.
Compliance by workers (wearing the gadget properly, positioning the microphone, battery, etc.).
Price sensitivity in most of the emerging economies.
Data management: with increasingly more devices recording data, firms require software, dashboards, storage, potentially with privacy, security concerns.
Conclusion
The noise dosimeter market is in a steady growth trajectory. Under the twin pressures of improved occupational health protection regulations and growing awareness of noise induced hearing loss, demand is healthy. Advances in technology such as cloud connectivity, wearables that are rugged, multi channel analysis and wireless controls are making the leaders stand out.
该领域由 Cirrus Research、Svantek 和 3M 等公司引领：使产品更精确、更易于使用，并成为更广泛的健康与安全系统的一部分。对于客户和安全官员来说，挑战在于平衡功能与成本、保持合规性，以及选择适合实际工作条件的设备。
常见问题 (FAQ)
1 级和 2 级剂量计有什么区别？
1 类仪器在更宽的频率范围内提供更高的精度，通常用于环境或严格的监管环境。2 类仪器的严格程度较低，适用于大多数工业环境。精度、频率响应和校准标准各不相同。
噪声剂量计应符合什么标准？
标准包括：IEC 61252（个人噪声剂量计）、ANSI/ASA S1.25、ISO 11904 1（用于真耳测量的麦克风）、欧盟指令 2003/10/EC、美国职业安全与健康管理局 (OSHA)、美国政府工业卫生学家会议 (ACGIH)。如果在危险区域使用，则需要本质安全认证。
噪声剂量（％）如何计算？
该设备测量按 A、C、Z 等加权的声压级随时间的变化。噪声剂量是相对于参考允许暴露量（例如，8 小时 85 或 90 分贝）的暴露量百分比。如果个人暴露于更高的噪声，百分比累积速度会更快。
剂量计应多久校准一次？
校准取决于制造商的建议、使用频率和环境暴露。工业卫生实践通常要求定期校准（每年或每两年一次），并在每次使用前进行现场检查。维护是确保数据可靠的关键。
一个设备可以覆盖多个标准吗？
是的。许多现代剂量计都配有可配置的积分器，因此可以同时根据多种监管标准（OSHA、ACGIH、ISO 等）进行测量。这使得剂量计更加灵活。Cirrus 的 doseBadge5 就是一个例子。
