JPS5786705A - Device for measuring thickness of frozen layer - Google Patents

Device for measuring thickness of frozen layer

Info

Publication number
JPS5786705A
JPS5786705A JP16262880A JP16262880A JPS5786705A JP S5786705 A JPS5786705 A JP S5786705A JP 16262880 A JP16262880 A JP 16262880A JP 16262880 A JP16262880 A JP 16262880A JP S5786705 A JPS5786705 A JP S5786705A
Authority
JP
Japan
Prior art keywords
electrode rod
rod
freezing state
thermal conductivity
cooling water
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
Application number
JP16262880A
Other languages
Japanese (ja)
Other versions
JPH0348442B2 (en
Inventor
Wahei Inoue
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mayekawa Manufacturing Co
Original Assignee
Mayekawa Manufacturing Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mayekawa Manufacturing Co filed Critical Mayekawa Manufacturing Co
Priority to JP16262880A priority Critical patent/JPS5786705A/en
Publication of JPS5786705A publication Critical patent/JPS5786705A/en
Publication of JPH0348442B2 publication Critical patent/JPH0348442B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
    • G01B7/02—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness
    • G01B7/06—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness for measuring thickness
    • G01B7/08—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness for measuring thickness using capacitive means
    • G01B7/085—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness for measuring thickness using capacitive means for measuring thickness of coating

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)

Abstract

PURPOSE:To detect a freezing state accurately by coating the surface of a conductive rod by an insulating film having high permittivity, contacting an electrode rod whose synthesized thermal conductivity is close to that of ice with the surface of a freezing pipe, thereby obtaining the electric capacity between the cooling water and the conductive rod. CONSTITUTION:The electrode rod 2 is formed by coating the surface of the conductive rod 3 having a specified length by the insulating filn having the high permittivity. The apparent thermal conductivity of the electrode rod 2 is made as close as possible to the thermal conductivity of ice, so that the freezing state in the surrounding area around the electrode rod 2 is equal to the freezing state of the whole area. One end of said electrode rod 2 is contacted with the cooling pipe 1 at a right angle or obliquely. A lead wire 5 is connected to an AC power source 9 through an ammeter 8 from the other end of the electrode rod 2. When a voltage is applied to the inside of the cooling water 10 from the other end of the AC power source 9, a current flows through an electric capacity formed by the cooling water 10 and the conductive rod 3, and its amount varies in response to the freezing state. In this way, the freezing state can be accurately detected. It is suitable for remote control of an ice bank. When the electrode rod is inclined, the sensitivity is increased.
JP16262880A 1980-11-20 1980-11-20 Device for measuring thickness of frozen layer Granted JPS5786705A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16262880A JPS5786705A (en) 1980-11-20 1980-11-20 Device for measuring thickness of frozen layer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16262880A JPS5786705A (en) 1980-11-20 1980-11-20 Device for measuring thickness of frozen layer

Publications (2)

Publication Number Publication Date
JPS5786705A true JPS5786705A (en) 1982-05-29
JPH0348442B2 JPH0348442B2 (en) 1991-07-24

Family

ID=15758219

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16262880A Granted JPS5786705A (en) 1980-11-20 1980-11-20 Device for measuring thickness of frozen layer

Country Status (1)

Country Link
JP (1) JPS5786705A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60189844U (en) * 1984-05-26 1985-12-16 トヨタ自動車株式会社 Sensor for detecting the amount of particulate matter deposited in exhaust gas
CN108195281A (en) * 2017-12-22 2018-06-22 太原理工大学 A kind of ice layer thickness measuring device based on piezomagnetic material
CN109990743A (en) * 2019-05-07 2019-07-09 辽宁科技大学 It is high and cold to freeze depth measurement device and method rich in water outdoor copper mine mining area rock stratum

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60189844U (en) * 1984-05-26 1985-12-16 トヨタ自動車株式会社 Sensor for detecting the amount of particulate matter deposited in exhaust gas
CN108195281A (en) * 2017-12-22 2018-06-22 太原理工大学 A kind of ice layer thickness measuring device based on piezomagnetic material
CN108195281B (en) * 2017-12-22 2020-11-13 太原理工大学 Ice layer thickness measuring device based on piezomagnetic material
CN109990743A (en) * 2019-05-07 2019-07-09 辽宁科技大学 It is high and cold to freeze depth measurement device and method rich in water outdoor copper mine mining area rock stratum

Also Published As

Publication number Publication date
JPH0348442B2 (en) 1991-07-24

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