Introduction

As AR technology becomes more prevalent, AR glasses are increasingly integrated into daily life. However, inadequate waterproofing can significantly impact user experience and device reliability. This article explores comprehensive waterproof testing solutions for AR glasses, analyzing current testing methods, challenges, and future directions.

Mainstream AR Glasses' Water Resistance Ratings

Overview of Water Resistance Ratings

AR glasses typically feature water resistance ratings ranging from IPX4 to IPX8. An IPX4 rating indicates protection against water splashes, while IPX7/X8 implies the device can withstand submersion in water up to a certain depth and duration.

Importance of Water Resistance Ratings

Enhanced water resistance not only boosts device durability but also expands the usage scenarios for AR glasses, enabling their use in rain or humid conditions.

Common Water Resistance Testing Methods

Traditional Testing Approaches

• IPX5/X6 Water Spray Testing: Simulates rain exposure to assess water resistance. Suitable for verification but not ideal for mass production.

• IPX7/X8 Direct Water Immersion or Pressurized Air Testing: Involves submerging devices in water or using pressurized air to detect bubbles. While straightforward, this method lacks traceability and is impractical for large-scale testing.

National Standards and the Pneumatic Method

Hairuisi Technology, as a drafting contributor to the national standard "Water Resistance Testing of Electrical and Electronic Products Using Pneumatic Methods," advocates for a more efficient and traceable testing approach. By substituting water pressure with air pressure, this method enhances testing efficiency while minimizing potential device damage.

AR Glasses' Waterproof Testing Principles

Semi-finished Product Testing Principles

Semi-finished product testing involves pressurization to detect pressure differentials, identifying leaks. Three outcomes may occur post-testing: no leak, minor leak, and major leak. Precise pressure change detection enables rapid leak localization.

Finished Product Testing Principles

Finished product testing employs a multi-stage process involving air reservoirs, molds, and standard ports for pressurization and pressure comparison. This method is particularly effective for detecting minor leaks, ensuring product reliability in real-world applications.

Challenges in AR Glasses' Leak Detection and Solutions

Challenges in Leak Detection

• Complex Structures: The intricate internal design of AR glasses complicates leak detection.

• Minute Leaks: Detecting tiny leaks demands more sophisticated equipment and techniques.

Solutions

• Non-destructive Leak Detection: Utilizing a mixture of hydrogen and nitrogen gases for testing achieves a minimum detectable leak rate of 5×10⁻⁷ mbar·L/s, offering 1000 times higher resolution than traditional air-tightness testing.

• Bubble Method and True Water Testing: Though conventional, these methods remain effective for verifying water resistance. By weighing, observing bubbles, and checking for fogging, leaks can be visually identified.

AR Glasses' Battery Leak Detection

Electrolyte VOC Detection Method

VOC sensors detect the concentration of volatile organic compounds in electrolytes, swiftly and sensitively identifying battery leaks. This method is well-suited for mass production.

Electrolyte RGA Detection Method

Residual Gas Analyzer (RGA) technology performs mass spectrometry analysis to qualitatively and quantitatively assess residual gas components and concentrations within a vacuum chamber. This precise method ensures battery seal integrity by screening and analyzing electrolytes.

Comprehensive Solutions for AR Glasses' Air-tightness Testing

Hairuisi Technology offers an all-encompassing suite of equipment for AR glasses, spanning research and development, trial production, defect analysis, and component testing. This includes leak immersion machines, air-tightness testers, hydrogen ammonia detectors, and mass spectrometers, catering to water resistance testing needs from IPX4 to IPX8 and ensuring device reliability across various usage scenarios.

Conclusion

Waterproof testing is pivotal for ensuring the reliability and user experience of AR glasses. Hairuisi Technology's innovative testing methodologies and equipment provide robust solutions for the AR glasses market. As technology continues to advance, the water resistance of AR glasses is set to improve, delivering more stable and secure user experiences.

AR眼镜防水检测解决方案：提升可靠性与用户体验

引言

随着AR技术的普及，AR眼镜逐渐成为日常生活中不可或缺的设备。然而，防水性能不足可能影响用户体验和设备的可靠性。本文将深入探讨AR眼镜的防水检测解决方案，分析当前的防水检测方法、难点及未来的发展方向。

主流AR眼镜的防水等级

防水等级概述

AR眼镜的防水等级通常分为IPX4、IPX5/X6、IPX7/X8等。IPX4表示设备能防止飞溅水的影响，而IPX7/X8则意味着设备可以在一定深度的水中浸泡一定时间而不受损害。

防水等级的重要性

防水等级的提升不仅增强了设备的耐用性，还扩大了AR眼镜的使用场景，如在雨天或潮湿环境中使用。

常见的防水检测方式

传统防水检测方法

• IPX5/X6淋雨测试：通过模拟淋雨环境，检测设备的防水性能。适合验证，但不适合批量生产。

• IPX7/X8直接泡水或充气沉水测试：直接将设备浸泡在水中或通过充气观察气泡。虽然直观，但存在追溯性差和不适合批量生产的问题。

国家标准与气压法

海瑞思科技参与起草的国家标准《电工电子产品防水性能试验气压法》提供了一种更高效、可追溯的检测方法。通过气压代替水压进行测试，不仅提高了检测效率，还降低了对设备的潜在损害。

AR眼镜的防水检测原理

半成品检测原理

半成品检测通过加压检测压力差，判断是否存在泄漏。测试后可能出现三种情况：不漏、小漏和大漏。通过精确的压力变化检测，可以快速定位泄漏问题。

成品检测原理

成品检测涉及储气罐、模具和标准口的分压测试。通过预充气、分压和压力对比，可以精确检测产品的密封性。这种方法适用于小漏检测，确保产品在实际使用中的可靠性。

AR眼镜的检漏难点和解决方案

检漏难点

• 复杂结构：AR眼镜的复杂内部结构增加了检漏的难度。

• 微小泄漏：微小的泄漏难以通过传统方法检测，需要更精密的设备和技术。

解决方案

• 非破坏式漏点检测：通过氢气和氮气的混合气体进行检测，最小检测漏率可达5×10⁻⁷ mbar·L/s，比传统气密检测分辨率高1000倍。

• 冒泡法与真水测试：虽然传统，但仍然是验证防水性能的有效方法。通过称重、冒泡和雾化观察，可以直观判断泄漏情况。

AR眼镜的电池漏液检测

电解液VOC检测法

利用VOC传感器检测电解液的挥发性有机化合物浓度，判断电池是否存在泄漏。这种方法快速且灵敏，适用于大规模生产。

电解液RGA检测法

通过残余气体分析仪（RGA）进行质谱分析，定性和定量分析真空腔中残余气体的成分和浓度。这种方法可以精确筛选和分析电解液，确保电池的密封性。

AR眼镜气密检测的整体解决方案

海瑞思科技提供从研发到试产、不良分析到部件检测的一整套设备，包括漏点浸水机、气密测试仪、氢氨检测仪和质谱检测仪。这些设备覆盖了从IPX4到IPX8的防水检测需求，确保AR眼镜在各种使用场景下的可靠性。

结论

AR眼镜的防水检测是确保其可靠性和用户体验的关键环节。海瑞思科技通过创新的检测技术和设备，为AR眼镜市场提供了全面的解决方案。未来，随着技术的不断进步，AR眼镜的防水性能将得到进一步提升，为用户带来更加稳定和安全的使用体验。