Detection Technology of H2S and CO2 Based on Fiber Amplifier Enhanced Photoacoustic Spectroscopy

2021 ◽  
Vol 41 (7) ◽  
pp. 0703002
Author(s):  
马凤翔 Ma Fengxiang ◽  
田宇 Tian Yu ◽  
陈珂 Chen Ke ◽  
张博 Zhang Bo ◽  
李辰溪 Li Chenxi ◽  
...  
Keyword(s):  
Photoacoustic Spectroscopy ◽  
Fiber Amplifier ◽  
Detection Technology

Fiber-amplifier-enhanced photoacoustic spectroscopy with near-infrared tunable diode lasers

2003 ◽  
Vol 42 (12) ◽  
pp. 2119 ◽  
Author(s):  
Michael E. Webber ◽  
Michael Pushkarsky ◽  
C. Kumar N. Patel
Keyword(s):  
Photoacoustic Spectroscopy ◽  
Near Infrared ◽  
Diode Lasers ◽  
Fiber Amplifier ◽  
Tunable Diode Lasers

Multicomponent gas detection technology of FDM and TDM based on photoacoustic spectroscopy

2020 ◽  
Author(s):  
Yuanfang Yu ◽  
Cunwei Tian ◽  
zongliang wang ◽  
Siyu Qian ◽  
Cunying Yan ◽  
...  
Keyword(s):  
Photoacoustic Spectroscopy ◽  
Gas Detection ◽  
Detection Technology ◽  
Multicomponent Gas

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,

Use of the photoacoustic spectroscopy in the investigation of biocompatible magnetic fluids

2005 ◽  
Vol 125 ◽  
pp. 27-30 ◽  
Author(s):  
J. G. Santos ◽  
L. B. Silveira ◽  
A. C. Oliveira ◽  
P. C. Morais
Keyword(s):  
Photoacoustic Spectroscopy ◽  
Magnetic Fluids

IN VIVO PHOTOACOUSTIC SPECTROSCOPY OF THE SKIN

1983 ◽  
Vol 44 (C6) ◽  
pp. C6-413-C6-418 ◽  
Author(s):  
P. Poulet ◽  
J. Chambron
Keyword(s):  
Photoacoustic Spectroscopy
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