Article | 03-November-2017
doping gas concentration. The doping process is reversible, and the experimental results are interpreted in terms of adsorption and diffusion of the gas in the polymer, charge transfer, and transport of the injected carriers in the polymer chain. These experimental results and previous studies on other polymers and oxidizing gases demonstrate the potentiality of such materials to be used as sensitive part of gas sensors.
Allal LARBI,
Bachir DJEDOU,
Layachi BENNACER,
Mounir BOUSBIA-SALAH
International Journal on Smart Sensing and Intelligent Systems, Volume 2 , ISSUE 3, 448–462
Article | 01-September-2012
MoO3 thin films have been prepared by a simple spray pyrolysis technique at substrate temperature 250oC. The structure and morphology of thin films are characterized by X-ray powder diffraction (XRD), scanning electron microscopy and UV-vis spectroscopy. The gas sensing properties of MoO3 thin film is studied at gas concentration 400 ppm and working temperature of 100–400 oC. It was found that the sensitivity depended on the working temperatures and also H2S gas concentration. The results show
D. V. Ahire,
S. D. Shinde,
G. E. Patil,
K. K. Thakur,
V. B. Gaikwad,
V. G. Wagh,
G. H. Jain
International Journal on Smart Sensing and Intelligent Systems, Volume 5 , ISSUE 3, 592–605
Article | 30-November-2018
foreign markets: differential algorithm, electrochemical analysis and infrared spectroscopy. Differential absorption algorithm can accurately calculate the concentration of most gases, but it will lose the broadband continuous absorption information in the characteristic absorption of gases, leading to some gas concentration measurement can not come out. For example, the absorption spectrum of nitrogen dioxide molecule in the ultraviolet band is mostly gradual continuous absorption, so differential
Shuping Xu,
Menyao Huang,
Li Chen,
Pei Xu
International Journal of Advanced Network, Monitoring and Controls, Volume 4 , ISSUE 1, 83–89
Research paper | 12-December-2017
This paper presents a new type of ultrasonic gas molecule concentration sensor for rescue robotics and the performance of developed sensor is investigated by applying as human breath gas measurement sensor. This devise can measure the change of the gas concentration with a sampling rate of 400 kHz. Ideal gas experiment results show that the proposed sensor could detect the difference between 5% CO2 and pure air over 50 dB S/N and could discriminate humidified air and pure air with 55 dB S/N
Hideki Toda,
Genci Capi
International Journal on Smart Sensing and Intelligent Systems, Volume 3 , ISSUE 2, 292–303
Research Article | 15-February-2020
composition, target gas concentration or operating temperature.
Enobong Bassey,
Jacqueline Whalley,
Philp Sallis,
Krishnamachar Prasad
International Journal on Smart Sensing and Intelligent Systems, Volume 7 , ISSUE 5, 1–5
Article | 07-May-2018
mixture of different composition. Experimental results show that: this method can at once calculate a variety of harmful gas concentration and accuracy up to ± 3%. it has strong anti-jamming capability and is suitable for practical application of engineering.
Xu Shuping,
Xu Pei,
Dong Qiyu,
Su Xiaohui
International Journal of Advanced Network, Monitoring and Controls, Volume 3 , ISSUE 1, 13–18
Article | 01-September-2012
18 nm and 20 nm, respectively. Gas sensing properties of their thick films, which were fabricated by screen-printing to various gases (O2, NO2, C2H5OH, CO, CO2, NH3, LPG, H2S and H2) were tested in ambient air. The ZrO2 thick films showed a high response and selectivity to H2S gas. The effect of operating temperature, gas concentration on the sensing characteristics of these films towards H2S was discussed..
Pratap G. Patil,
D. D. Kajale,
V. P. Patil,
G. E. Patil,
G. H. Jain
International Journal on Smart Sensing and Intelligent Systems, Volume 5 , ISSUE 3, 673–684
Research Article | 13-December-2017
A low power MEMS based sensor along with the embedded power efficient signal conditioning unit (Microcontroller based), which can be used with any suitable sensor-network to detect and quantify variations in a particular gas concentration, has been reported in this paper. The power consumption of the MEMS gas sensor is ~ 70mW to 100mW depending upon its operating temperature (150-250°C) and that of entire signal conditioning unit (consisting of low noise amplifier, switch, microcontroller and
P. Bhattacharyya,
D. Verma,
D. Banerjee
International Journal on Smart Sensing and Intelligent Systems, Volume 3 , ISSUE 4, 771–782
Article | 01-March-2012
at 700oC shows the higher sensitivity to H2S gas for 10 ppm gas concentration.
Sarika D. Shinde,
G. E. Patil,
D. D. Kajale,
V. G. Wagh,
V. B. Gaikwad,
G. H. Jain
International Journal on Smart Sensing and Intelligent Systems, Volume 5 , ISSUE 1, 277–294
Article | 01-September-2012
response to NH3 (100 ppm) at 300oC. It was observed that increase in gas concentration its sensing response goes on increasing but slowly increase being still constant for higher concentration. The sensitivity and selectivity may be further enhanced by doping other element and ZrO2 can be stabilize by mixing other oxides. The quick response and fast recovery time was recorded.
S. B. Deshmukh,
R. H. Bari,
G. E. Patil,
D. D. Kajale,
G. H. Jain,
L. A. Patil
International Journal on Smart Sensing and Intelligent Systems, Volume 5 , ISSUE 3, 540–558
Research Article | 27-December-2017
for gas concentration of 50 ppm with film dipped for 10 min. time interval. The characterization of the films was done by XRD, SEM and TG-DTA. Crystallite size, texture coefficient, specific surface area, electric properties and gas sensitivity of the films were measured and presented.
N.U. PATIL,
V.B. GAIKWAD,
P.D. HIRE,
R.M. CHAUDHARI,
M. K. DEORE,
G. H. JAIN
International Journal on Smart Sensing and Intelligent Systems, Volume 6 , ISSUE 1, 433–447