TN364.2 99063806雪崩光电二极管在线性测量中的应用=Applicationof avalanche photodiodes to linear measurement[刊,中]/王茜倩,刘敬海,孙志勇(北京理工大学光电工程系.北京(100081))∥计量技术.—1998,(11).—34—37讨论影响用作探...TN364.2 99063806雪崩光电二极管在线性测量中的应用=Applicationof avalanche photodiodes to linear measurement[刊,中]/王茜倩,刘敬海,孙志勇(北京理工大学光电工程系.北京(100081))∥计量技术.—1998,(11).—34—37讨论影响用作探测器的雪崩光电二极管响应度恒定的因素,在此基础上提出了两种保持响应度恒定的方法:即恒温恒压法和偏置电压温度补偿法,并进行了实验验证。图6参4(严寒)展开更多
A metal-sensitive diaphragm fiber optic pressure sensor with temperature compensation is developed for pressure monitoring in high-temperature environments,such as engine fuel systems,oil and gas wells,and aviation hy...A metal-sensitive diaphragm fiber optic pressure sensor with temperature compensation is developed for pressure monitoring in high-temperature environments,such as engine fuel systems,oil and gas wells,and aviation hydraulic systems.The sensor combines a metal-sensitive diaphragm and a sapphire wafer to form a temperature-pressure dual Fabry-Perot(FP)interference cavity.A cross-correlation signal demodulation algorithm and a temperature decoupling method are utilized to reduce the influence of temperature crosstalk on pressure measurement.Experimental results show that the maximum nonlinear error of the sensor pressure measurement is 0.75%full scale(FS)and 0.99%FS at room temperature and 300°C,respectively,in a pressure range of 0−10 MPa and 0−1.5 MPa.The sensor’s pressure measurement accuracy is 1.7%FS when using the temperature decoupling method.The sensor exhibits good static pressure characteristics,stability,and reliability,providing an effective solution for high-temperature pressure monitoring applications.展开更多
文摘TN364.2 99063806雪崩光电二极管在线性测量中的应用=Applicationof avalanche photodiodes to linear measurement[刊,中]/王茜倩,刘敬海,孙志勇(北京理工大学光电工程系.北京(100081))∥计量技术.—1998,(11).—34—37讨论影响用作探测器的雪崩光电二极管响应度恒定的因素,在此基础上提出了两种保持响应度恒定的方法:即恒温恒压法和偏置电压温度补偿法,并进行了实验验证。图6参4(严寒)
文摘A metal-sensitive diaphragm fiber optic pressure sensor with temperature compensation is developed for pressure monitoring in high-temperature environments,such as engine fuel systems,oil and gas wells,and aviation hydraulic systems.The sensor combines a metal-sensitive diaphragm and a sapphire wafer to form a temperature-pressure dual Fabry-Perot(FP)interference cavity.A cross-correlation signal demodulation algorithm and a temperature decoupling method are utilized to reduce the influence of temperature crosstalk on pressure measurement.Experimental results show that the maximum nonlinear error of the sensor pressure measurement is 0.75%full scale(FS)and 0.99%FS at room temperature and 300°C,respectively,in a pressure range of 0−10 MPa and 0−1.5 MPa.The sensor’s pressure measurement accuracy is 1.7%FS when using the temperature decoupling method.The sensor exhibits good static pressure characteristics,stability,and reliability,providing an effective solution for high-temperature pressure monitoring applications.
