Improved Double Beam, Vacuum Far Infrared Spectrophotometer

1969 ◽  
Vol 8 (3) ◽  
pp. 583 ◽  
Author(s):  
Isao Iwahashi ◽  
Koichi Matsumoto ◽  
Shunji Matsudaira ◽  
Shigeo Minami ◽  
Hiroshi Yoshinaga
Keyword(s):  
Far Infrared ◽  
Double Beam ◽  
Infrared Spectrophotometer

A New Double-Beam Far-Infrared Spectrophotometer

1962 ◽  
pp. 87-97
Author(s):  
R. E. Anacreon ◽  
C. C. Helms ◽  
E. H. Siegler
Keyword(s):  
Far Infrared ◽  
Double Beam ◽  
Infrared Spectrophotometer

An Optical Null Double-Beam Far Infrared Spectrophotometer

1964 ◽  
Vol 3 (12) ◽  
pp. 1425 ◽  
Author(s):  
Hiroshi Yoshinaga ◽  
Shigeo Minami ◽  
Isao Makino ◽  
Isao Iwahashi ◽  
Masao Inaba ◽  
...  
Keyword(s):  
Far Infrared ◽  
Double Beam ◽  
Infrared Spectrophotometer

A Method for Eliminating Error due to Sample Radiation in Double-Beam Far Infrared Spectrophotometer

1965 ◽  
Vol 4 (9) ◽  
pp. 1137 ◽  
Author(s):  
Shigeo Minami ◽  
Hiroshi Yoshinaga ◽  
Kunihide Matsunaga
Keyword(s):  
Far Infrared ◽  
Double Beam ◽  
Infrared Spectrophotometer

Design and performance of a double-beam far-infrared spectrophotometer

1963 ◽  
Vol 19 (5) ◽  
pp. 819-828 ◽  
Author(s):  
C.C. Helms ◽  
H.W. Jones ◽  
A.J. Russo ◽  
E.H. Siegler
Keyword(s):  
Far Infrared ◽  
Double Beam ◽  
Infrared Spectrophotometer ◽  
And Performance

Fourier Transform Infrared Spectrophotometer for Transmittance and Diffuse Reflectance Measurements

1976 ◽  
Vol 30 (6) ◽  
pp. 593-601 ◽  
Author(s):  
R. R. Willey
Keyword(s):  
Fourier Transform ◽  
High Speed ◽  
Diffuse Reflectance ◽  
Storage System ◽  
Fourier Transform Infrared ◽  
Single Beam ◽  
Double Beam ◽  
New Instrument ◽  
Measurement Mode ◽  
Infrared Spectrophotometer

This paper describes a new Fourier transform infrared spectrophotometer with the capability to measure diffuse reflectance (DR) from 5000 to 500 cm−1 (2 to 20 µm) in addition to the normal transmittance measurements. The instrument has a true simultaneous double beam measurement mode and a high speed single beam mode. The system also takes advantage of many data manipulation and display features due to the built-in computer and 2.5 million word storage system. One of the objectives of this work was to produce a practical instrument which includes the DR capability; another was to introduce the qualitative and quantitative measurements of DR in the infrared to the analytical community. DR has been commonly available in the visible and near ir spectrum, but until this new instrument, has not been available in the ir. A brief survey of the background and history of DR and emittance measurements in the ir is given. The design details and operation of the instrument are generally examined. Brief examples are provided for a few transmittance, trace analysis, and microsampling applications, and a variety of DR results are shown. The addition of diffuse reflectance as a tool in the infrared opens new avenues for investigation and application in many fields.

Versatile Far Infrared Spectrophotometer

1964 ◽  
Vol 3 (S1) ◽  
pp. 372 ◽  
Author(s):  
K. Kudo ◽  
Y. Mochida
Keyword(s):  
Far Infrared ◽  
Infrared Spectrophotometer
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