Analysis on Dynamic Detection Technology of Automobile Exhaust Components

2021 ◽  
Keyword(s):  
Automobile Exhaust ◽  
Detection Technology ◽  
Dynamic Detection

Research of Weak Signal Processing Circuit Based on Non-Dispersive Infrared Automobile Exhaust Sensor

2013 ◽  
Vol 336-338 ◽  
pp. 163-167
Author(s):  
Jun Xie ◽  
Yi Long Zhang ◽  
Yue Feng Yuan
Keyword(s):  
Light Source ◽  
Infrared Detection ◽  
Weak Signal ◽  
Gas Concentration ◽  
Automobile Exhaust ◽  
Detection Technology ◽  
Thermopile Sensor ◽  
Gas Chamber ◽  
Modulated Light ◽  
Processing Circuit

Based on the analysis of infrared detection technology and Lambert-Beer law a new kind of quad-channel non-dispersive infrared (NDIR) gas concentration analyzer is designed by applying the modulated IR light source and a quad thermopile sensor into automobile exhaust gases concentration detection. The emphasis is paid on the analysis of modulated light source, gas chamber, sensor and the acquisition and processing circuit of the signal. The result of simulation and analysis of the designed circuit proved the feasibility of the design.

Dynamic detection technology for the irregularity state of railway track based on linear array CCD

2009 ◽  
Author(s):  
Jian-ping Peng ◽  
Li Wang ◽  
Xiao-rong Gao ◽  
Ze-yong Wang ◽  
Quan-ke Zhao
Keyword(s):  
Linear Array ◽  
Railway Track ◽  
Detection Technology ◽  
Linear Array Ccd ◽  
Dynamic Detection

scholarly journals The Dynamic Detection of Water Quality Monitoring and Pollution Prevention and Control

2022 ◽  
Vol 2152 (1) ◽  
pp. 012017
Author(s):  
Keke Zou
Keyword(s):  
Water Quality ◽  
Prevention And Control ◽  
Clustering Algorithm ◽  
Pollution Prevention ◽  
Water Quality Monitoring ◽  
Quality Monitoring ◽  
Detection Technology ◽  
Pollution Prevention And Control ◽  
Dynamic Detection ◽  
And Control

Abstract With the development of society, the material living standard of our people has been significantly improved, but we sacrificed the environment in the course of development, which led to the current number of environmental problems in our country is particularly large, so that now we need to pick up the tone of protecting the environment, so now the overall tone of the country is to protect the environment, adhere to the green water green mountain is the basic strategy of Jinshan Yinshan, play a good pollution prevention and control of the three major battles, care for the environment, protect the environment. And in the environment water is the most important, it carries everything, the purpose of this paper is to study based on water quality monitoring and pollution prevention and control of dynamic detection technology. In order to conduct the experiment better, after consulting the literature on water quality monitoring and pollution prevention and control, and dynamic detection technology, we used a variety of algorithms to construct a corresponding dynamic detection technology system to monitor water quality and conduct real-time surveys of pollutants, and obtain relevant experimental data to complete the experiment. The experimental results show that the improved adaptive parameter DBSCAN clustering algorithm is better than the AdaBoost algorithm and the genetic algorithm, so we finally choose to build a dynamic detection technology system using the improved adaptive parameter DBSCAN clustering algorithm.

On-line image readout in CTEM

1994 ◽  
Vol 52 ◽  
pp. 400-401
Author(s):  
K.-H. Herrmann ◽  
W. D. Rau ◽  
R. Sikeler
Keyword(s):  
Primary Electron ◽  
Digital Information ◽  
Electron Hole ◽  
Detection Technology ◽  
Long Time ◽  
On Line ◽  
Electron Image ◽  
Optical Transfer ◽  
Detection Quantum Efficiency ◽  
Technical Solutions

Quantitative recording of electron patterns and their rapid conversion into digital information is an outstanding goal which the photoplate fails to solve satisfactorily. For a long time, LLL-TV cameras have been used for EM adjustment but due to their inferior pixel number they were never a real alternative to the photoplate. This situation has changed with the availability of scientific grade slow-scan charged coupled devices (CCD) with pixel numbers exceeding 106, photometric accuracy and, by Peltier cooling, both excellent storage and noise figures previously inaccessible in image detection technology. Again the electron image is converted into a photon image fed to the CCD by some light optical transfer link. Subsequently, some technical solutions are discussed using the detection quantum efficiency (DQE), resolution, pixel number and exposure range as figures of merit.A key quantity is the number of electron-hole pairs released in the CCD sensor by a single primary electron (PE) which can be estimated from the energy deposit ΔE in the scintillator,

Assessment of different ti-rads systems using computer-aided detection technology

2019 ◽  
Author(s):  
Kuen-Yuan Chen ◽  
Ming-Hsun Wu ◽  
Chiung-Nien Chen ◽  
Argon Chen
Keyword(s):  
Computer Aided Detection ◽  
Detection Technology ◽  
Computer Aided

Study on Defect Detection Technology for Bridge Deck Pavements

2017 ◽  
Vol 19 (6) ◽  
pp. 38
Author(s):  
Chengchao Guo ◽  
Pengfei Xu ◽  
Can Cui
Keyword(s):  
Defect Detection ◽  
Bridge Deck ◽  
Detection Technology
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