JPH0432066U - - Google Patents
Info
- Publication number
- JPH0432066U JPH0432066U JP7425390U JP7425390U JPH0432066U JP H0432066 U JPH0432066 U JP H0432066U JP 7425390 U JP7425390 U JP 7425390U JP 7425390 U JP7425390 U JP 7425390U JP H0432066 U JPH0432066 U JP H0432066U
- Authority
- JP
- Japan
- Prior art keywords
- rectified signal
- signal
- gas
- alternating current
- light
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000002835 absorbance Methods 0.000 claims description 4
- 239000000284 extract Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 1
Landscapes
- Investigating Or Analysing Materials By Optical Means (AREA)
Description
第１図および第２図は本考案に係るガス分析計
の一実施例を示し、第１図はガス分析計の全体構
成図、第２図はその信号処理回路および信号表示
方法を示すブロツク回路図である。第３図は従来
技術を説明するための回路図である。
１……光源、３……吸光度検出器、１２……切
り換え手段、Ｖ１……第１整流信号、Ｖ２……第
２整流信号。
1 and 2 show an embodiment of the gas analyzer according to the present invention, FIG. 1 is an overall configuration diagram of the gas analyzer, and FIG. 2 is a block circuit showing its signal processing circuit and signal display method. It is a diagram. FIG. 3 is a circuit diagram for explaining the prior art. 1... Light source, 3... Absorbance detector, 12... Switching means, V1... First rectified signal, V2... Second rectified signal.
Claims (1)
スとに一定周期（基本周波数）で通過させるよう
に構成すると共に、前記基準ガスを通過した光お
よび前記サンプルガスを通過した光に対する吸光
度検出器を設け、かつ、前記吸光度検出器による
出力信号から前記基準ガスを通過した光エネルギ
ーと前記サンプルガスを通過した光エネルギーと
のエネルギー差に相当する交流成分を取り出すよ
うに構成し、前記光源からの照射光の強度を前記
基本周波数とは異なる周波数で変化させるように
構成し、前記吸光度検出器による出力信号から前
記基本周波数の交流成分の第１整流信号と前記異
なる周波数の交流成分の第２整流信号とを格別に
取り出して、その第１整流信号を第２整流信号で
除算するようにしたガス分析計において、前記第
１整流信号を第２整流信号で除してなる信号と前
記第２整流信号とを切り換え手段を介して表示で
きるようにしたことを特徴とするガス分析計。 The system is configured to allow light emitted from a light source to pass through a reference gas and a sample gas at a constant frequency (fundamental frequency), and is provided with an absorbance detector for the light that has passed through the reference gas and the light that has passed through the sample gas. , and configured to extract from the output signal from the absorbance detector an alternating current component corresponding to the energy difference between the light energy passing through the reference gas and the light energy passing through the sample gas; is configured to change the intensity of the alternating current component at a frequency different from the fundamental frequency, and a first rectified signal of the alternating current component of the fundamental frequency and a second rectified signal of the alternating current component of the different frequency are determined from the output signal of the absorbance detector. In a gas analyzer that specifically extracts the first rectified signal and divides the first rectified signal by the second rectified signal, the signal obtained by dividing the first rectified signal by the second rectified signal and the second rectified signal A gas analyzer characterized by being able to display the following information through a switching means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7425390U JPH0432066U (en) | 1990-07-12 | 1990-07-12 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7425390U JPH0432066U (en) | 1990-07-12 | 1990-07-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0432066U true JPH0432066U (en) | 1992-03-16 |
Family
ID=31613786
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7425390U Pending JPH0432066U (en) | 1990-07-12 | 1990-07-12 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0432066U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6183941A (en) * | 1984-10-02 | 1986-04-28 | Fujitsu Ten Ltd | Rain drops detector |
| JPS63311146A (en) * | 1987-06-13 | 1988-12-19 | Horiba Ltd | Gas analyzer |
-
1990
- 1990-07-12 JP JP7425390U patent/JPH0432066U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6183941A (en) * | 1984-10-02 | 1986-04-28 | Fujitsu Ten Ltd | Rain drops detector |
| JPS63311146A (en) * | 1987-06-13 | 1988-12-19 | Horiba Ltd | Gas analyzer |
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