Adaptive test method and design for low power MOX sensor

• Main Authors: MAJERI HATEM, LE NEEL OLIVIER, SHANKAR RAVI, BRAHEM MALEK
• Format: Patent
• Language: Chinese; English
• Published: 07.03.2023
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

The invention relates to an adaptive test method and design for low power MOX sensors. The present disclosure relates to a gas sensor device comprising 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 films is designed to be sensitive to a different gas concentration range. 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 a current gas concentration detected by the gas sensor device. Accordingly, the gas sensor apparatus can save power since the gas sensor is turned on at appropriate time instead of being continuously turned on. 本公开涉及用于低功率MOX传感器的适应性测试方法和设计。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。