Infrared light, also called infrared light, is an electromagnetic wave with a longer wavelength than red light. It has obvious thermal effects, which makes people feel invisible. Scientists have discovered that when a certain wavelength of light (visible or invisible) is irradiated onto the surface of certain metals and other materials, materials such as metals emit electrons, called photoelectric effect.
Design scheme of reflective infrared heart rate detector based on uPSD3234
This paper presents a design scheme of a reflective infrared heart rate detector based on uPSD3234. The program uses the single-chip uPSD3234 as the core component of the system, and uses the digital signal processing method such as matching filtering to obtain the heart rate data. The microelectronic technology and the biomedical engineering technology are closely combined to meet the requirements of the scheme design and realize the heart rate of the human body. measuring.
Design of a reflective infrared heart rate detector
In this paper, we use the high opacity of blood and the great difference between tissue and blood translucency. The pulse signal is obtained by photoelectric pulse sensor. After analog-to-digital conversion (A/D), the sampled data is digitally analyzed and processed to achieve Measurement of the human heart rate.
Design scheme of single channel ECG telemetry system based on infrared transmission
The transmitting end of the system adopts a single-chip microcomputer with an A/D converter, and the infrared receiving part adopts an integrated infrared receiving module to simplify the system structure. However, the transmission rate of the infrared receiving module is not high enough, and thus the sampling rate of the signal is limited. This problem can be solved as devices evolve and integrated components with higher transfer rates emerge. Or the infrared receiving part of the system uses discrete components, which can also effectively solve this problem.
Based on the working principle of infrared thermal imager
The development of infrared measurement technology has led to the continuous development of materials sensitivity, operating temperature and detection rate, and the continuous discovery of new materials. In terms of scale, the infrared thermal imager will continue to develop toward a large-scale focal plane (ie, thermal imager); in terms of detection wavelength, it will develop from monochromatic to two-color and multi-color; with the development of technology, infrared thermal imager As an advanced temperature measuring device, it is increasingly applied to various fields.
Power Supply Design of Infrared Thermal Imager Based on TPS54350
This system uses TMS320DM6437 to implement the power system, and can adopt different algorithms and parameters according to the changes of the environment.
Implementation of medical monitoring system based on infrared technology
The imaging quality of the infrared monitoring system is stable and clear, and details such as the movement of the eyebrows can be observed, which can fully meet the needs of observation. By analyzing the image software, when the patient is in an uncomfortable situation, an alarm can be issued, appropriate supporting measures, and even unattended monitoring can be achieved. Because the infrared monitoring system adopts the passive working mode, the infrared required for its work is naturally emitted by the human body, so it is a pollution-free and environmentally-friendly monitoring system, which is especially suitable for medical treatment.
Design of infrared thermometer
The infrared thermometer provides a fast, non-contact measurement method to prevent the spread and spread of SARS, and can be widely and effectively used for human body temperature examination. At one time, infrared temperature measurement is rapidly booming in China. Here, a method for realizing infrared temperature measurement using SPCE061A and TN series sensors is introduced.
A Chinese medical infrared thermal imaging camera is a new medical diagnostic equipment developed by technology. It can inhale the infrared thermal field distribution signal with a central wavelength of 9-10 μm radiated by the human body. For the thermal field image, the medical staff is provided with a heat map analysis and comparison to achieve the purpose of diagnosing the disease.
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