JPH03115816U - - Google Patents
Info
- Publication number
- JPH03115816U JPH03115816U JP2639590U JP2639590U JPH03115816U JP H03115816 U JPH03115816 U JP H03115816U JP 2639590 U JP2639590 U JP 2639590U JP 2639590 U JP2639590 U JP 2639590U JP H03115816 U JPH03115816 U JP H03115816U
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- comparison
- section
- judgment
- supply line
- 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
- 230000003321 amplification Effects 0.000 claims description 3
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims description 2
- 238000001816 cooling Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Measuring Volume Flow (AREA)
Description
第１図は本考案の一実施例を示すブロツク図、
第２図ａ〜ｃは、従来の検出方法を説明するため
の図である。
１……ホール素子、２……増幅部、３……比較
判定部、４……警報表示部、５……作動ダンパー
、６……スイツチ部、７……重り。
FIG. 1 is a block diagram showing an embodiment of the present invention.
FIGS. 2a to 2c are diagrams for explaining a conventional detection method. DESCRIPTION OF SYMBOLS 1... Hall element, 2... Amplification section, 3... Comparison/judgment section, 4... Alarm display section, 5... Operation damper, 6... Switch section, 7... Weight.
Claims (1)
ホール素子と、該ホール素子により電源線に流れ
る電流を電圧に変換された信号を増幅する増幅部
と、該増幅部で増幅された電圧をあらかじめ設定
された電圧と比較判定し警報信号を発生する比較
判定部と、比較判定部で検出された信号を表示す
る警報表示部とを有し、電子管冷却必要風量の検
出をブロアーモーター部に流れる電流を検出する
ことで行うことを特徴とする風量検出回路。 A Hall element attached to the power supply line of the cooling blower motor, an amplification unit that amplifies a signal obtained by converting the current flowing through the power supply line into voltage by the Hall element, and a preset voltage for the voltage amplified by the amplification unit. It has a comparison/judgment section that makes a comparison judgment with the voltage detected and generates an alarm signal, and an alarm display section that displays the signal detected by the comparison/judgment section, and detects the current flowing through the blower motor section to detect the air volume required for cooling the electronic tube. This is an air volume detection circuit that is characterized by the following:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2639590U JPH03115816U (en) | 1990-03-14 | 1990-03-14 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2639590U JPH03115816U (en) | 1990-03-14 | 1990-03-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03115816U true JPH03115816U (en) | 1991-12-02 |
Family
ID=31529291
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2639590U Pending JPH03115816U (en) | 1990-03-14 | 1990-03-14 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03115816U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007295282A (en) * | 2006-04-25 | 2007-11-08 | Kenwood Corp | Screen speaker system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5454069A (en) * | 1977-10-06 | 1979-04-27 | Mikuni Kogyo Kk | Air flow meter |
| JPS593313A (en) * | 1982-06-30 | 1984-01-10 | Nippon Kokan Kk <Nkk> | Apparatus for measuring flowrate of waste gas from incinerator |
-
1990
- 1990-03-14 JP JP2639590U patent/JPH03115816U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5454069A (en) * | 1977-10-06 | 1979-04-27 | Mikuni Kogyo Kk | Air flow meter |
| JPS593313A (en) * | 1982-06-30 | 1984-01-10 | Nippon Kokan Kk <Nkk> | Apparatus for measuring flowrate of waste gas from incinerator |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007295282A (en) * | 2006-04-25 | 2007-11-08 | Kenwood Corp | Screen speaker system |
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