JPH032209U - - Google Patents
Info
- Publication number
- JPH032209U JPH032209U JP6268489U JP6268489U JPH032209U JP H032209 U JPH032209 U JP H032209U JP 6268489 U JP6268489 U JP 6268489U JP 6268489 U JP6268489 U JP 6268489U JP H032209 U JPH032209 U JP H032209U
- Authority
- JP
- Japan
- Prior art keywords
- electrical signal
- leads
- display system
- sample
- output
- 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
Landscapes
- Indication And Recording Devices For Special Purposes And Tariff Metering Devices (AREA)
- Examining Or Testing Airtightness (AREA)
Description
第１図はこの考案による測定回路の構成図、第
２図はリークテスト装置の構成図である。
１……第１出力系、２……第２出力系、３……
サンプルホールドアンプ、４，４′……スイツチ
、５……差動アンプ、６……比較器、７……しき
い値発信器、８……リレー。
FIG. 1 is a block diagram of a measuring circuit according to this invention, and FIG. 2 is a block diagram of a leak test device. 1...First output system, 2...Second output system, 3...
Sample and hold amplifier, 4, 4'... switch, 5... differential amplifier, 6... comparator, 7... threshold oscillator, 8... relay.
Claims (1)
に導びく回路において、この電気信号の値を必要
とするとき記憶保持するサンプルホールドアンプ
と、このサンプルホールドアンプの記憶値をスイ
ツチを介して表示系側に導びく第２出力系と、前
記電気信号を直接的に表示系側に導びく第１出力
系と、この第１．第２両出力系の値の差を求め、
出力する差動アンプとを具備したことを特徴とす
る測定回路。 In a circuit that leads the electrical signal resulting from the measurement of a certain quantity to a display system, etc., there is a sample-and-hold amplifier that stores and holds the value of this electrical signal when it is needed, and the value stored in this sample-and-hold amplifier is displayed via a switch. a second output system that leads the electrical signal to the display system side; a first output system that leads the electrical signal directly to the display system side; Find the difference between the values of both second output systems,
A measurement circuit characterized by comprising a differential amplifier for outputting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6268489U JPH032209U (en) | 1989-05-30 | 1989-05-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6268489U JPH032209U (en) | 1989-05-30 | 1989-05-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH032209U true JPH032209U (en) | 1991-01-10 |
Family
ID=31592059
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6268489U Pending JPH032209U (en) | 1989-05-30 | 1989-05-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH032209U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008517257A (en) * | 2004-10-16 | 2008-05-22 | インフィコン ゲゼルシャフト ミット ベシュレンクテル ハフツング | How to detect leaks |
-
1989
- 1989-05-30 JP JP6268489U patent/JPH032209U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008517257A (en) * | 2004-10-16 | 2008-05-22 | インフィコン ゲゼルシャフト ミット ベシュレンクテル ハフツング | How to detect leaks |
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