这是一个由四部分组成的系列报告中的第三篇论文，该系列报告了用于建筑HVAC应用的典型二氧化碳传感器的测试和评估。对NDIR HVAC级二氧化碳传感器的15个模型进行了测试和评估，以确定传感器的湿度、温度和压力灵敏度。本文报告了传感器在建筑HVAC应用中常见的各种相对湿度、温度和压力水平下的性能，并与制造商规范进行了比较。 在测试的15个模型中，8个模型具有单灯单波长配置，4个模型具有双灯单波长配置，3个模型具有单灯双波长配置。这些传感器在专门为本研究制造的试验箱中进行了测试。第1部分（Shrestha和Maxwell，2009）描述了仪器和试验方法。测试结果表明，制造商之间CO2传感器的湿度、温度和压力灵敏度存在很大差异。 在某些情况下，同一型号的传感器之间的传感器性能存在显著差异。即使相对湿度的自然变化也会显著改变某些二氧化碳传感器的读数。温度和压力变化对NDIR CO2传感器的影响是不可避免的，如果没有算法来补偿这些变化。对于空调空间中的温度和压力变化范围，压力变化的影响比温度变化的影响更为显著。 单位:双引文:ASHRAE交易，第116卷，第页。1，奥兰多2010

This is the third paper in a four-part series reporting on the test and evaluation of typical carbon-dioxide sensors used in building HVAC applications. Fifteen models of NDIR HVAC-grade CO2sensors were tested and evaluated to determine the humidity, temperature, and pressure sensitivity of the sensors. This paper reports the performance of the sensors at various relative humidity, temperature, and pressure levels common to building HVAC applications and provides a comparison with manufacturer specifications. Among the 15 models tested, eight models have a singlelamp, single-wavelength configuration, four models have a dual-lamp, single-wavelength configuration, and three models have a single-lamp, dual-wavelength configuration.The sensors were tested in a chamber specifically fabricated for this research. A description of the apparatus and the method of test are described in Part 1 (Shrestha and Maxwell 2009). The test result showed a wide variation in humidity, temperature, and pressure sensitivity of CO2sensors among manufacturers. In some cases, significant variations in sensor performance exist between sensors of the same model. Even the natural variation in relative humidity could significantly vary readings of some CO2sensor readings. The effects of temperature and pressure variation on NDIR CO2sensors are unavoidable without an algorithm to compensate for the changes. For the range of temperature and pressure variation in an airconditioned space, the effect of pressure variation is more significant compared to the effect of temperature variation.Units: Dual