JPS646911U - - Google Patents
Info
- Publication number
- JPS646911U JPS646911U JP10133887U JP10133887U JPS646911U JP S646911 U JPS646911 U JP S646911U JP 10133887 U JP10133887 U JP 10133887U JP 10133887 U JP10133887 U JP 10133887U JP S646911 U JPS646911 U JP S646911U
- Authority
- JP
- Japan
- Prior art keywords
- preamplifiers
- channel
- switching circuit
- main amplifier
- electrode switching
- 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
- 238000010586 diagram Methods 0.000 description 4
Description
第１図は本考案の実施例の全体構成を示すブロ
ツク図、第２図は第１図の前置増幅器の構成例を
示す回路図、第３図は第１図の主増幅器の詳細を
示すブロツク図、第４図は従来のインピーダンス
変換器の例を示す図である。
Ｑ１，Ｑ２，Ｉ，Ａ，Ｒ３，Ｒ４……利得の微
調整が可能で高入力抵抗の前置増幅器。
Fig. 1 is a block diagram showing the overall configuration of an embodiment of the present invention, Fig. 2 is a circuit diagram showing an example of the configuration of the preamplifier shown in Fig. 1, and Fig. 3 shows details of the main amplifier shown in Fig. 1. The block diagram in FIG. 4 is a diagram showing an example of a conventional impedance converter. Q 1 , Q 2 , I, A, R 3 , R 4 . . . Preamplifiers with fine gain adjustment and high input resistance.
Claims (1)
信号をそれぞれ増幅する利得の微調整が可能で高
入力抵抗の前置増幅器と、 これら前置増幅器の出力信号を任意のチヤンネ
ルに分配する電極切換回路と、 この電極切換回路により各チヤンネルに分配さ
れた信号を増幅する差動増幅器群より成る主増幅
器と、 この主増幅器の出力信号をチヤンネル毎に記録
する記録部とを具えた生体信号測定装置。[Claims for Utility Model Registration] Preamplifiers with high input resistance and capable of finely adjusting the gain for amplifying signals induced from a plurality of electrodes attached to a living body, and output signals of these preamplifiers. An electrode switching circuit that distributes to arbitrary channels, a main amplifier consisting of a group of differential amplifiers that amplifies the signal distributed to each channel by this electrode switching circuit, and a recording section that records the output signal of this main amplifier for each channel. A biosignal measuring device equipped with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10133887U JPS646911U (en) | 1987-07-01 | 1987-07-01 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10133887U JPS646911U (en) | 1987-07-01 | 1987-07-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS646911U true JPS646911U (en) | 1989-01-17 |
Family
ID=31330237
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10133887U Pending JPS646911U (en) | 1987-07-01 | 1987-07-01 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS646911U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5641693U (en) * | 1979-09-10 | 1981-04-16 | ||
| JPS5819292A (en) * | 1981-07-24 | 1983-02-04 | 株式会社日立製作所 | Drum type garment dryer |
-
1987
- 1987-07-01 JP JP10133887U patent/JPS646911U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5641693U (en) * | 1979-09-10 | 1981-04-16 | ||
| JPS5819292A (en) * | 1981-07-24 | 1983-02-04 | 株式会社日立製作所 | Drum type garment dryer |
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