JPS5618758A - Flow measuring device - Google Patents
Flow measuring deviceInfo
- Publication number
- JPS5618758A JPS5618758A JP9459579A JP9459579A JPS5618758A JP S5618758 A JPS5618758 A JP S5618758A JP 9459579 A JP9459579 A JP 9459579A JP 9459579 A JP9459579 A JP 9459579A JP S5618758 A JPS5618758 A JP S5618758A
- Authority
- JP
- Japan
- Prior art keywords
- output
- circuit
- flow
- hot
- rate
- 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.)
- Granted
Links
Landscapes
- Measuring Volume Flow (AREA)
- Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
Abstract
PURPOSE: To linearize a quadruplicate function characteristic through a simple circuit configuration by constituting a nonlinear circuit proprotional to a rate of flow to measure with a tangent approximate circuit through inputting an output signal of a hot-wire type current meter.
CONSTITUTION: An output V of a hot-wire type current meter 1 having a quadru- plicate function input/output characteristic is inputted to a tangent approximate circuit 2 working as a nonlinear circuit. Output currents IsoWIsn of transistors Qo1WQon for which start points for rise are adjusted with variable resistances Rx1W Rxn are applied on a nonliversion input terminal of an operational amplifier 4, thereby obtaining an output ee proportional to a rate of flow.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9459579A JPS5618758A (en) | 1979-07-25 | 1979-07-25 | Flow measuring device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9459579A JPS5618758A (en) | 1979-07-25 | 1979-07-25 | Flow measuring device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5618758A true JPS5618758A (en) | 1981-02-21 |
JPS6122908B2 JPS6122908B2 (en) | 1986-06-03 |
Family
ID=14114621
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9459579A Granted JPS5618758A (en) | 1979-07-25 | 1979-07-25 | Flow measuring device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5618758A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5925484A (en) * | 1982-07-31 | 1984-02-09 | Nec Home Electronics Ltd | Nonlinear gain control circuit |
JPS61127415U (en) * | 1985-01-29 | 1986-08-09 | ||
US5237868A (en) * | 1990-12-28 | 1993-08-24 | Mitsubishi Denki Kabushiki Kaisha | Thermal flow sensor for compensating gradient of flow rate characteristics |
JPH06221100A (en) * | 1993-01-26 | 1994-08-09 | Kajima Corp | Drainage system in gallery |
-
1979
- 1979-07-25 JP JP9459579A patent/JPS5618758A/en active Granted
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5925484A (en) * | 1982-07-31 | 1984-02-09 | Nec Home Electronics Ltd | Nonlinear gain control circuit |
JPS61127415U (en) * | 1985-01-29 | 1986-08-09 | ||
JPH0345146Y2 (en) * | 1985-01-29 | 1991-09-24 | ||
US5237868A (en) * | 1990-12-28 | 1993-08-24 | Mitsubishi Denki Kabushiki Kaisha | Thermal flow sensor for compensating gradient of flow rate characteristics |
JPH06221100A (en) * | 1993-01-26 | 1994-08-09 | Kajima Corp | Drainage system in gallery |
Also Published As
Publication number | Publication date |
---|---|
JPS6122908B2 (en) | 1986-06-03 |
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