Device for detecting air quality

• Main Authors: HATEM MAJERI, MALEK BRAHEM, RAVI SHANKAR, OLIVIER LE NEEL
• Format: Patent
• Language: Chinese; English
• Published: 15.11.2019
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

The utility model relates to equipment for detecting air quality. The present disclosure relates to a gas sensor apparatus including a plurality of gas sensors. Each of the gas sensors includes a semiconductor metal oxide (SMO) film, a heater, and a temperature sensor. Each of the SMO membranes is designed to be sensitive to a different range of gas concentrations. As a result, the gas sensor device is capable of obtaining accurate readings for a wide range of gas concentration levels. In addition, the gas sensor is selectively activated and deactivated based on the current gas concentration detected by the gas sensor device. Accordingly, the gas sensor apparatus can save power because the gas sensor is opened at the right time rather than continuously opened. 本公开涉及一种用于检测空气质量的设备。本公开涉及一种包括多个气体传感器的气体传感器设备。气体传感器中的每一个包括半导体金属氧化物(SMO)膜、加热器和温度传感器。SMO膜中的每一个被设计为对不同的气体浓度范围敏感。结果，气体传感器设备能够获得针对大范围的气体浓度水平的准确读数。另外，气体传感器基于由气体传感器设备检测到的当前气体浓度被选择性地激活和去激活。因此，气体传感器设备能够节省电力，因为气体传感器在适当的时候被打开而不是持续地被打开。