A temperature and humidity-controlled test bench for a wirelessly-powered ultra-low-power temperature sensor IC is presented. It consists of a closed metallic structure of 0.02 m³, forming a faraday-cage around the design under test (DUT), thermally insulated using Polyethylene foam, to provide electromagnetic interference (EMI) clean and thermally stable test environment with an operating temperature range of -10 °C to 100 °C. The temperature control with a settling accuracy of ± 0.6 °C is achieved with air-cooled 100 W Peltier modules, having fast dynamics to reach 95% of the required temperature within 15 min. The humidity is controlled by air circulation through a desiccant pocket, managed at around 15% to avoid water droplets during defrosting. A controllable vacuum of ~ 1.3 kPa is achieved through a vacuum pump when < 15% of de-humification is needed. The system operates at a lower power consumption of 30 W during the temperature retention phase, with acoustic noise of 58 dB-SPL achieved.

介绍了一种用于无线供电的超低功耗温度传感器 IC 的温湿度控制测试台。它由一个 0.02 m ^{3的封闭金属结构组成}，在被测设计 (DUT) 周围形成一个法拉第笼，使用聚乙烯泡沫进行热绝缘，以提供电磁干扰 (EMI) 清洁和热稳定的测试环境，工作温度范围为 -10 °C 至 100 °C。使用风冷 100 W Peltier 模块实现稳定精度为 ± 0.6 °C 的温度控制，具有快速动态特性，可在 15 分钟内达到所需温度的 95%。湿度由通过干燥剂袋的空气循环控制，控制在 15% 左右，以避免在除霜过程中出现水滴。当需要 < 15% 的除湿量时，可通过真空泵实现约 1.3 kPa 的可控真空。该系统在温度保持阶段以 30 W 的较低功耗运行，实现了 58 dB-SPL 的噪声。