JPH0627725B2 - Simple high-sensitivity ion detector that can determine the polarity of ions - Google Patents
Simple high-sensitivity ion detector that can determine the polarity of ionsInfo
- Publication number
- JPH0627725B2 JPH0627725B2 JP60058247A JP5824785A JPH0627725B2 JP H0627725 B2 JPH0627725 B2 JP H0627725B2 JP 60058247 A JP60058247 A JP 60058247A JP 5824785 A JP5824785 A JP 5824785A JP H0627725 B2 JPH0627725 B2 JP H0627725B2
- Authority
- JP
- Japan
- Prior art keywords
- stage
- plate
- detected
- ions
- direct
- 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.)
- Expired - Lifetime
Links
- 150000002500 ions Chemical class 0.000 title claims description 15
- 238000001514 detection method Methods 0.000 claims description 8
- 239000004973 liquid crystal related substance Substances 0.000 claims 1
- 239000004065 semiconductor Substances 0.000 description 13
- 230000003321 amplification Effects 0.000 description 6
- 238000003199 nucleic acid amplification method Methods 0.000 description 6
- 230000035945 sensitivity Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
Landscapes
- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
- Amplifiers (AREA)
Description
【発明の詳細な説明】 直結増幅回路は第１図に図示せるごとくダーリントン接
続と言はれるものがあり、PNP又はNPN型を２段直結に接
続したエミッタ−ホロワーの２段直結の増幅回路であっ
て、このように接続するとその電流増幅率はそれぞれの
半導体の電流増幅率の積となるので、感度の良い直流増
幅が可能となるものである。DETAILED DESCRIPTION OF THE INVENTION The direct-coupled amplifier circuit is called Darlington connection as shown in FIG. 1. It is an emitter-follower two-stage direct-coupled amplifier circuit in which a PNP or NPN type is connected in two-stage direct connection. Therefore, when the connection is made in this way, the current amplification factor becomes a product of the current amplification factors of the respective semiconductors, so that it is possible to perform direct current amplification with high sensitivity.
本発明のものはこの２段では感度がまだ不足する場合に
より高感度な第２図に図示せる３段、第３図に図示せる
４段の直結増幅回路及び、この回路を使用せる第４図、
第５図に図示せる高感度なイオン検知器に関する。In the present invention, the sensitivity is still insufficient in these two stages, and the sensitivity is higher than that in the three stages shown in FIG. 2 and the four stages shown in FIG. 3, and the direct connection amplifier circuit shown in FIG. ,
The present invention relates to a highly sensitive ion detector shown in FIG.
次いで第２図に図示せる直結３段より説明すれば、半導
体２及び３よりなる２段直結増幅回路の前段に、その逆
タイプの半導体７をベースを入力に、コレクタを次段２
のベースに、エミッタを次段２及び３の直結コレクタ部
に接続する。Next, the direct connection of three stages shown in FIG. 2 will be explained. In the preceding stage of the two-stage direct connection amplifier circuit composed of the semiconductors 2 and 3, the semiconductor 7 of the opposite type is input to the base and the collector to the next stage.
The emitter is connected to the direct collector part of the next stage 2 and 3 at the base of the.
このように３段直結接続する。In this way, the three-stage direct connection is made.
第３図は直結４段であって、半導体２及び３よりなる２
段直結増幅回路の前段にその逆タイプの半導体７及び８
による２段直結増幅回路を置き、半導体７のエミッタを
次段の半導体２及び３のコレクタに、半導体７と８のコ
レクタを次段の半導体２のベースに接続する。このよう
に直結２段増幅回路を組合せ４段直結接続をする。FIG. 3 shows a four-stage direct connection, which is composed of semiconductors 2 and 3.
The reverse type semiconductors 7 and 8 are provided in the preceding stage of the stage direct connection amplifier circuit.
The two-stage direct-coupling amplifier circuit is placed, and the emitter of the semiconductor 7 is connected to the collectors of the next-stage semiconductors 2 and 3, and the collectors of the semiconductors 7 and 8 are connected to the base of the next-stage semiconductor 2. In this way, the directly connected two-stage amplifier circuits are combined to make the four-stage directly connected connection.
これ等の増幅回路を使用してイオン検知器を構成せるも
のが第４図、第５図であって、第４図はLED１３、１
４、１５による表示、第５図はメーター１６による針表
示である。An ion detector using these amplification circuits is shown in FIGS. 4 and 5, and FIG. 4 shows LEDs 13, 1
4 and 15, and FIG. 5 is a needle display by the meter 16.
第４図のLED１３、１４、１５より説明すれば、増幅部
の前段７のベースに検知板１０、エミッタにアース板１
１を接続すれば−イオンを検出、前段７のベースにアー
ス板１１、エミッタに検知板１０を接続すれば＋イオン
を検出するのを切替スイッチ９でやり、その出力を半導
体２、３により増幅し、ドライブ用IC１２によりLED緑
１３、黄１４、赤１５と検知イオン量に応じて表示させ
るものである。Describing from LEDs 13, 14, and 15 in FIG. 4, the detection plate 10 is at the base of the front stage 7 of the amplification section, and the ground plate 1 is at the emitter.
When 1 is connected, − ion is detected, and when the ground plate 11 is connected to the base of the previous stage 7 and the detection plate 10 is connected to the emitter, + ion is detected by the changeover switch 9, and its output is amplified by the semiconductors 2 and 3. The drive IC 12 displays the LEDs green 13, yellow 14, red 15 according to the detected ion amount.
４は出力調整ボリウム、６は直流電源である。Reference numeral 4 is an output adjusting volume, and 6 is a DC power source.
第５図について説明すれば、増幅部前段８のベースに検
知板１０、コレクタにアース板１１を接続すれば−イオ
ンを検出、前段８のベースにアース板１１、コレクタに
検知板１０を接続すれば＋イオンを検出するのを切替ス
イッチ９でやり、それ等の出力を半導体７、２、３で増
幅し、メーター１６を検知イオン量に応じ表示させるも
ので、メーター１６に変り液晶によるデジタル表示をさ
せる場合をも含むものである。Referring to FIG. 5, if the detection plate 10 is connected to the base of the amplification unit front stage 8 and the ground plate 11 is connected to the collector, −ions are detected, and the ground plate 11 is connected to the base of the front stage 8 and the detection plate 10 is connected to the collector. For example, +/- ions are detected by the change-over switch 9, the outputs of those are amplified by the semiconductors 7, 2, and 3, and the meter 16 is displayed in accordance with the detected ion amount. It also includes the case where
このように特に高感度な直流増幅器を必要とする場合に
有効な増幅回路を提供するにある。Thus, it is an object of the present invention to provide an effective amplifying circuit when a highly sensitive DC amplifier is required.
図は本発明の実施の一例を示すもので第１図は従来より
の２段直結増幅回路、第２図は本発明の３段直結増幅回
路、第３図は本発明の４段直結増幅回路、第４図、第５
図は本発明の回路を使用せる高感度イオン検知器の回路
の一例を示すものである。 １は入力部、２、３は半導体、４は出力調整ボリウム、
５は出力部、６は直流電源、７、８は半導体、９は切替
スイッチ、１０は検知板、１１はアース板、１２はドラ
イブ用IC、１３はLED緑、１４はLED黄、１５はLED赤、
１６はメーター。FIG. 1 shows an embodiment of the present invention. FIG. 1 is a conventional two-stage direct-connection amplifier circuit, FIG. 2 is a three-stage direct-connection amplifier circuit of the present invention, and FIG. 3 is a four-stage direct-connection amplifier circuit of the present invention. , Fig. 4, Fig. 5
The figure shows an example of a circuit of a high-sensitivity ion detector which can use the circuit of the present invention. 1 is an input part, 2 and 3 are semiconductors, 4 is an output adjusting volume,
5 is an output part, 6 is a DC power supply, 7 and 8 are semiconductors, 9 is a changeover switch, 10 is a detection plate, 11 is a ground plate, 12 is a drive IC, 13 is LED green, 14 is LED yellow, 15 is LED Red,
16 is a meter.
Claims (1)
３段の場合は前段７のベースに検知板１０、エミッタに
アース板１１を接続すればマイナスイオンを検出、前段
７のベースにアース板１１、エミッタに検知板１０を接
続すれば、プラスイオンを検出するのを切替スイッチ９
でやり、又直結４段の場合は、前段８のベースに検知板
１０、コレクタにアース板１１を接続すればマイナスイ
オンを検出、前段８のベースにアース板１１、コレクタ
に検知板１０を接続すれば、プラスイオンを検出するの
を切替スイッチ９でやり、それ等の出力を増幅し、緑１
３、黄１４、赤１５のＬＥＤをドライブ用ＩＣ１２によ
り、検知イオン量に応じてドライブ表示、又はメーター
による針表示及び液晶によるデジタル表示させるように
なしたる、プラスイオン及びマイナスイオンのイオン極
性判別を可能とせる簡易高感度イオン検知器。1. A direct-coupled three-stage or four-stage amplifier circuit is used. In the case of the direct-coupled three-stage, if the detection plate 10 is connected to the base of the front stage 7 and the earth plate 11 is connected to the emitter, negative ions are detected. If a ground plate 11 is connected to the detector and a detector plate 10 is connected to the emitter, the changeover switch 9 detects positive ions.
In the case of 4-stage direct connection, if the detection plate 10 is connected to the base of the front stage 8 and the ground plate 11 is connected to the collector, negative ions are detected. The ground plate 11 is connected to the base of the front stage 8 and the detection plate 10 is connected to the collector. If so, the changeover switch 9 is used to detect positive ions, and the output of those switches is amplified to green 1.
The positive, negative and ionic polarities of the LEDs 3, 3, 14 and 15 are displayed on the drive IC 12 according to the detected ion amount, or the needle display on the meter and the digital display on the liquid crystal are performed according to the detected ion amount. A simple high-sensitivity ion detector that enables
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60058247A JPH0627725B2 (en) | 1985-03-25 | 1985-03-25 | Simple high-sensitivity ion detector that can determine the polarity of ions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60058247A JPH0627725B2 (en) | 1985-03-25 | 1985-03-25 | Simple high-sensitivity ion detector that can determine the polarity of ions |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61218209A JPS61218209A (en) | 1986-09-27 |
| JPH0627725B2 true JPH0627725B2 (en) | 1994-04-13 |
Family
ID=13078789
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60058247A Expired - Lifetime JPH0627725B2 (en) | 1985-03-25 | 1985-03-25 | Simple high-sensitivity ion detector that can determine the polarity of ions |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0627725B2 (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4818055U (en) * | 1971-07-09 | 1973-03-01 |
-
1985
- 1985-03-25 JP JP60058247A patent/JPH0627725B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61218209A (en) | 1986-09-27 |
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