Full
Outline
To clarify the regulatory mechanism of temperature on the performance of narrow-range oxygen sensors, this paper takes the thickness of the heater resistor as the regulatory carrier, systematically investigates its influence on the operating internal resistance and operating temperature of the sensor, and explores the correlation characteristics between temperature and performance by combining EDS, ICP composition analysis and performance tests such as response time and output voltage. The results show that there is a positive correlation between the thickness of the heater resistor and the operating internal resistance of the sensor; as the resistor thickness increases, the operating internal resistance gradually decreases, which in turn causes the operating temperature of the sensor to rise. Elevated operating temperature is the core inducement leading to the performance degradation of narrow-range oxygen sensors. On the contrary, reducing the thickness of the heater resistor can optimize the sensor performance, which is specifically manifested in the significant improvement of the rich-burn voltage output and the obvious shortening of the response time under rich-lean combustion and lean-rich combustion conditions.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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