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Energy perturbation bidirectional cross detection method based on rare-earth nickel-based perovskite compound

A detection method and perovskite technology, applied in the direction of material resistance, can solve problems such as limited space for optimization, and achieve the effect of broad application prospects and considerable application value

Active Publication Date: 2019-03-19
UNIV OF SCI & TECH BEIJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In summary, most of the existing detection methods for energy disturbances such as light and heat in the past are limited to active detection by using a single physical effect such as thermistor characteristics, so there is little room for further optimization in terms of improving the signal-to-noise ratio and detection sensitivity. limited

Method used

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  • Energy perturbation bidirectional cross detection method based on rare-earth nickel-based perovskite compound
  • Energy perturbation bidirectional cross detection method based on rare-earth nickel-based perovskite compound
  • Energy perturbation bidirectional cross detection method based on rare-earth nickel-based perovskite compound

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Effect test

Embodiment 1

[0057] use figure 1 , figure 2 The samarium, neodymium, nickel and oxygen with properties such as the temperature coefficient of resistance and the Seebeck coefficient shown are used as energy sensitive materials, according to image 3 Devices were fabricated from the structures shown. Follow the direction indicated by the arrow (along V R Direction) through a current, read V R value, when V S value close to zero. Energy perturbation is applied to the center of the circular structure of the device by light waves, so that V R 3% change; at the same time measure the Seebeck voltage V caused by the temperature rise due to localized light absorption S Read a voltage signal of approximately 20 microvolts. After removing the energy disturbance, V R back to the original value and V S Back to zero. In active detection, the signal response time is short, and in passive detection, the signal-to-noise ratio can be achieved. Therefore, through the comprehensive utilization of a...

Embodiment 2

[0059] use figure 1 , figure 2 The ytterbium nickel oxide material with properties such as the resistance temperature coefficient and the Seebeck coefficient is used as an energy sensitive material, according to image 3 Devices were fabricated from the structures shown. Follow the direction indicated by the arrow (along V R Direction) through a current, read V R value, when V S value close to zero. Local heating of the center of the circular structure of the device increases the temperature by 10K, making V R 18% change; at the same time measure the Seebeck voltage V caused by the temperature rise due to localized light absorption S Read a voltage signal of approximately 180 microvolts. After stopping heating and standing for 30 minutes, V R back to the original value and V S Back to zero. In active detection, the signal response time is short, and in passive detection, the signal-to-noise ratio can be achieved. Therefore, through the comprehensive utilization of a...

Embodiment 3

[0061] use figure 1 , figure 2 Dysprosium-nickel-oxygen materials with properties such as the temperature coefficient of resistance and Seebeck coefficient shown are used as energy-sensitive materials, according to Figure 4 Devices were fabricated from the structures shown. Follow the direction indicated by the arrow (along V R Direction) through a current, read V R value, when V S value close to zero. A microwave perturbation signal is applied to the center of the circular structure of the device, resulting in V R 2% change; at the same time measure the Seebeck voltage V caused by the temperature increase due to localized light absorption S1 , V S2 , V S3 Voltage signals of about 30 microvolts, 32 millivolts, and 28 millivolts are respectively generated. stop microwave signal incident, V R back to the original value and V S1-S3 Back to zero. In active detection, the signal response time is short, and in passive detection, the signal-to-noise ratio can be achieve...

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Abstract

The invention aims to provide an energy perturbation bidirectional cross detection method based on a rare-earth nickel-based perovskite compound, and belongs to the field of signal detection. The method combines two characteristics of the energy resistance temperature coefficient of the rare-earth nickel-based perovskite compound with a thermodynamic metastable phase and of a high-thermoelectric Seebeck coefficient, and energy change caused by micro-zonal energy perturbation is detected, so that energy micro-perturbation is detected. By the method combining an active detection technology of energy sensitive resistance effect of the rare-earth nickel-based perovskite compound and a passive detection technology of the Seebeck voltage effect, energy perturbation is accurately locked and detected. According to the method, small thermal perturbation signals such as light, heat and electromagnetic waves can be accurately detected, and the method has considerable application value and wide application prospect in the aspects of optical signal detection, micro-radiant heat detection, temperature detection and sensing.

Description

technical field [0001] The invention belongs to the field of energy micro-disturbance detection such as micro-area thermal disturbance, infrared signal, electromagnetic signal, etc., and specifically relates to an energy disturbance cross-bidirectional detection method based on a rare earth nickel-based perovskite compound. Background technique [0002] For both military and civilian detection fields, the development of precise detection methods for energy disturbances has important application value. For example, an infrared detector is a device that converts invisible infrared radiation into a measurable electrical signal. It is the core of infrared technology and one of the cutting-edge technologies used in local war reconnaissance in recent years. Infrared detectors are divided into two categories: photon detectors and thermal detectors. Compared with photon detectors, thermal detectors have the characteristics of no wavelength selectivity, no refrigeration, simple stru...

Claims

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Application Information

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IPC IPC(8): G01N27/14
CPCG01N27/14
Inventor 陈吉堃胡海洋张秀兰姜勇
Owner UNIV OF SCI & TECH BEIJING
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