JPS54103376A - Induction type level gauge - Google Patents
Induction type level gaugeInfo
- Publication number
- JPS54103376A JPS54103376A JP976478A JP976478A JPS54103376A JP S54103376 A JPS54103376 A JP S54103376A JP 976478 A JP976478 A JP 976478A JP 976478 A JP976478 A JP 976478A JP S54103376 A JPS54103376 A JP S54103376A
- Authority
- JP
- Japan
- Prior art keywords
- correcting
- induced voltage
- level height
- value
- measured
- 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
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
PURPOSE: To measure the liquid level height accurately at high precision, by measuring the thermal expansion amount of the liquid being measured by effectively using electrical resistances having large and small temperature coefficients, and correcting the induced voltage of the secondary coil accordingly.
CONSTITUTION: The resistance Rx of a lead wire 8 may be determined in a signal processor circuit 12, and from this Rx value the amount Δl of thermal expansion from the probe top end to the coil part 5 may be calculated. Also at this time, the change in the secondary coil induced voltage due to difference in level height from a secondary winding 11b of a transformer 11 to the coil part 5 may be determined. Therefore, finding the level height of a liquid metal 2 from the change in the induced voltage, and correcting it with Δl, the level may be measured correctly. Meanwhile this signal processing may be performed easily by addition and subtraction of the measured value and correcting value.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP976478A JPS5836729B2 (en) | 1978-01-31 | 1978-01-31 | Inductive liquid level gauge |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP976478A JPS5836729B2 (en) | 1978-01-31 | 1978-01-31 | Inductive liquid level gauge |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS54103376A true JPS54103376A (en) | 1979-08-14 |
JPS5836729B2 JPS5836729B2 (en) | 1983-08-11 |
Family
ID=11729328
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP976478A Expired JPS5836729B2 (en) | 1978-01-31 | 1978-01-31 | Inductive liquid level gauge |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5836729B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5744805A (en) * | 1980-08-29 | 1982-03-13 | Mitsubishi Heavy Ind Ltd | Distance detecting apparatus |
JPS57175017U (en) * | 1981-04-28 | 1982-11-05 |
-
1978
- 1978-01-31 JP JP976478A patent/JPS5836729B2/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5744805A (en) * | 1980-08-29 | 1982-03-13 | Mitsubishi Heavy Ind Ltd | Distance detecting apparatus |
JPS57175017U (en) * | 1981-04-28 | 1982-11-05 |
Also Published As
Publication number | Publication date |
---|---|
JPS5836729B2 (en) | 1983-08-11 |
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