State Estimation in Spacecraft Power Distribution Systems Using Compound Current Sensors

Kulkarni, Pallavi; Aliprantis, Dionysios; Wu, Ning; Loop, Benjamin

doi:10.1109/jsen.2022.3215668

Cited by 1 publication

(1 citation statement)

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“…Hydrogen sensors based on the catalyst combustion principle became a research hotspot in hydrogen measurement technology due to their good stability and high sensitivity, and are widely used in the aerospace field [19][20][21]. The catalyst used in this type of sensor is metallic Palladium (Pd), which has two disadvantages.…”

Section: Catalyst Combustion Hydrogen Sensorsmentioning

confidence: 99%

A Review of Hydrogen Sensors for ECLSS: Fundamentals, Recent Advances, and Challenges

et al. 2023

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The development of hydrogen sensors with high detection accuracy, fast response times, long calibration periods, and good stability has become the focus of the space station environmental control and life support subsystem. We analyze the current research status of different types of hydrogen sensors, including catalyst combustion type, heat conduction type, semiconductor type, fiber optic type, etc. The response signals of most hydrogen sensors are affected by temperature and humidity, resulting in cross-sensitivity. Reducing the cross-sensitivity of temperature, humidity, and other interfering factors to achieve accurate hydrogen measurement in different environments is a challenge that limits the development of hydrogen sensors. Several hydrogen sensors that are currently commercially available have a narrow operating temperature range, most of them can only measure at room temperature, and high-temperature environments require a higher accuracy and lifetime of the sensor than required at room temperature. Many new hydrogen-sensitive materials were developed to improve the performance of the sensors. The excellent performance of fiber-optic hydrogen sensors is beneficial to temperature compensation and distributed multiparameter measurement, as well as to the research and development of intelligent sensing systems, in the context of the Internet of Things. The signal detection and demodulation techniques of fiber-optic sensors are the focus of future hydrogen sensor research.

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Section: Catalyst Combustion Hydrogen Sensorsmentioning

confidence: 99%