Uncooled microbolometer trade off or new figure of merit for uncooled imager - art. no. 654224

被引:1
|
作者
Crastes, Arnaud [1 ]
Tissot, Jean Luc [1 ]
机构
[1] ZI Veurey Voroize, ULIS, F-38113 Veurey Voroize, France
来源
Infrared Technology and Applications XXXIII | 2007年 / 6542卷
关键词
uncooled; microbolometer; NETD; spatial resolution; figure of merit;
D O I
10.1117/12.723601
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
NETD is not the sole parameter to characterize microbolometer array and other parameters are as important as this one, indeed when a products comparison is done, NETD values but not, systematically, technology data (such as thermal time constant...) and typical imager parameters can be used. However, as NETD is strongly dependant on the thermal time constant, it's important to compare microbolometer in the same conditions to evaluate advantages and drawbacks. This paper deals with the important parameters to compare microbolometer devices and propose a figure of merit to take into account thermal sensitivity as well as imager characterization: such as MTF, fill factor and thermal time constant, which are often forgotten in the data products; for example, a die with a NETD around 10mK and thermal time constant around 40ms will not be compliant with a 100 Hz frame rate and has to be compared with a 40mK, tau=10ms component. The important point is to compare the right criteria and to make the best choice for the application. An example will be also presented to see how to choose an uncooled array for a given application.
引用
收藏
页码:54224 / 54224
页数:7
相关论文
共 26 条
  • [21] Large thermoelectric figure of merit at high temperature in Czochralski-grown clathrate Ba8Ga16Ge30 -: art. no. 023708
    Saramat, A
    Svensson, G
    Palmqvist, AEC
    Stiewe, C
    Mueller, E
    Platzek, D
    Williams, SGK
    Rowe, DM
    Bryan, JD
    Stucky, GD
    JOURNAL OF APPLIED PHYSICS, 2006, 99 (02)
  • [22] A new high speed thermal imaging concept based on a logarithmic CMOS imager technology - art. no. 70030H
    Hutter, Franz X.
    Brosch, Daniel
    Burghartz, Joachim N.
    Graf, Heinz-Gerd
    Strobel, Markus
    OPTICAL SENSORS 2008, 2008, 7003 : H30 - H30
  • [23] Uncooled tunable pyroelectric response of antiferroelectric Pb0.97La0.02(Zr0.65Sn0.22Ti0.13)O3 perovskite -: art. no. 192904
    Chan, WH
    Xu, ZK
    Zhai, J
    Chen, HD
    APPLIED PHYSICS LETTERS, 2005, 87 (19) : 1 - 3
  • [24] High room-temperature figure of merit of thin layers prepared by laser ablation from Bi2Te3 target -: art. no. 081902
    Walachová, J
    Zeipl, R
    Zelinka, J
    Malina, V
    Pavelka, M
    Jelínek, M
    Studnicka, V
    Lost'ák, P
    APPLIED PHYSICS LETTERS, 2005, 87 (08)
  • [25] Enhancement of the thermoelectric figure of merit in M/T/M (M=Cu or Ni and T=Bi0.88Sb0.12) composite materials -: art. no. 073707
    Yamashita, O
    Satou, K
    Odahara, H
    Tomiyoshi, S
    JOURNAL OF APPLIED PHYSICS, 2005, 98 (07)
  • [26] Performance of HAWK-I: the new high acuity wide-field K-band imager - art. no. 70140Q
    Kissler-Patig, M.
    Ageorges, N.
    de Oliveira, C. Alves
    Bedin, L. R.
    Bendek, E.
    Casali, M.
    Dorn, R.
    Esteves, R.
    Finger, G.
    Gojak, D.
    Jung, Y.
    Kiekebush, M.
    Moorwood, A.
    Lizon, J. -L
    Petr-Gotzens, M.
    Pirard, J. F.
    Pritchard, J.
    Selman, F.
    GROUND-BASED AND AIRBORNE INSTRUMENTATION FOR ASTRONOMY II, PTS 1-4, 2008, 7014 : Q140 - Q140