1131
P63
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Construction of a Simple Spectrometer by Using Mobile Phone
ðÖøèŤ
ǰðøĊ
ßćïĎ
øèą
1
ǰôŦ
êđöćąĀŤ
ǰéČ
ĂøćĒö
2
Ēúąýč
õúĆ
ÖþèŤ
ǰǰĂĞ
ćúĂ÷
3*
Pakorn Preechaburana
1
, Futmorh Dueramae
2
and Supaluck Amloy
3*
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ïǰ1.24 nm/pixel àċę
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ć ñúÝćÖÖćøüĆ
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ïǰ5.94 %ǰàċę
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Abstract
In this research we demonstrate two types of spectrometer using a mobile phone as a
detector. The first type is grating spectrometer utilizing optical interference principle creating spectrum
of the light source whereas the second type is prism spectrometer using refraction of light through the
prism. Calibrations were carried out with mercury lamp demonstrating the linear relation between
wavelength of the spectrum and pixel position. As a result, the resolution of grating spectrometer is
1.24 nm/pixel, which is two times higher than that of prism spectrometer. The average error values of
the experimental results measuring the spectra of hydrogen and helium by grating spectrometer and
prism spectrometer are 5.94% and 6.32% respectively.
Keywords:
Spectrometer
,
Grating
,
Prism
1
Ă éø , õćÙüĉ
ßćôŗ
ÿĉ
ÖÿŤ
ǰÙèąüĉ
ì÷ćýćÿêøŤ
ĒúąđìÙēîēú÷Ċ
ǰöĀćüĉ
ì÷ćúĆ
÷íøøöýćÿêøŤ
ǰðìč
öíćîĊ
12121
2
îĉ
ÿĉ
êðøĉ
ââćêøĊ
ĀúĆ
ÖÿĎ
êøǰüì ï ǰ(ôŗ
ÿĉ
ÖÿŤ
) Ùèąüĉ
ì÷ćýćÿêøŤ
ǰöĀćüĉ
ì÷ćúĆ
÷ìĆ
Öþĉ
èǰüĉ
ì÷ćđ×êóĆ
ìúč
Üǰ93210
3
Ă.éø., ÿć×ćüĉ
ßćôŗ
ÿĉ
ÖÿŤ
ǰÙèąüĉ
ì÷ćýćÿêøŤ
ǰöĀćüĉ
ì÷ćúĆ
÷ìĆ
Öþĉ
èǰüĉ
ì÷ćđ×êóĆ
ìúč
Üǰ93210
Corresponding author: Tel.: 086-4138774. E-mail address:
