JPS54115296A - Measuring method of moisture content in sand - Google Patents

Measuring method of moisture content in sand

Info

Publication number
JPS54115296A
JPS54115296A JP2307478A JP2307478A JPS54115296A JP S54115296 A JPS54115296 A JP S54115296A JP 2307478 A JP2307478 A JP 2307478A JP 2307478 A JP2307478 A JP 2307478A JP S54115296 A JPS54115296 A JP S54115296A
Authority
JP
Japan
Prior art keywords
sand
moisture content
electrostatic capacity
measuring electrode
measurement
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
Application number
JP2307478A
Other languages
Japanese (ja)
Inventor
Susumu Ihara
Kenichiro Uehara
Yoshinobu Kashiuchi
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.)
Sumitomo Electric Industries Ltd
Original Assignee
Sumitomo Electric Industries Ltd
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 Sumitomo Electric Industries Ltd filed Critical Sumitomo Electric Industries Ltd
Priority to JP2307478A priority Critical patent/JPS54115296A/en
Publication of JPS54115296A publication Critical patent/JPS54115296A/en
Pending legal-status Critical Current

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  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)

Abstract

PURPOSE: To realize measurement always at high precision, by keeping the pressing pressure of measuring electrode against the sand above the specified pressure.
CONSTITUTION: A measuring electrode has an electrode 52, which is connected to the central conductor of an coaxial cable, and an electrode 53, which is connected to an external conductor or the earth, secured to an insulating plate 51, and measures the electrostatic capacity of the sand including the moisture between the electrodes 52, 53, by inserting the electrodes 52, 53 into the sand. By keeping the pressing pressure of the measuring electrode against the sand abobe 100 g/cm2, the dispersion of the electrostatic capacity may be very slight, and the measurement of the electrostatic capacity may remain almost constant if the moisture content is constant. Thus, high precision measurement may be realized.
COPYRIGHT: (C)1979,JPO&Japio
JP2307478A 1978-02-28 1978-02-28 Measuring method of moisture content in sand Pending JPS54115296A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2307478A JPS54115296A (en) 1978-02-28 1978-02-28 Measuring method of moisture content in sand

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2307478A JPS54115296A (en) 1978-02-28 1978-02-28 Measuring method of moisture content in sand

Publications (1)

Publication Number Publication Date
JPS54115296A true JPS54115296A (en) 1979-09-07

Family

ID=12100247

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2307478A Pending JPS54115296A (en) 1978-02-28 1978-02-28 Measuring method of moisture content in sand

Country Status (1)

Country Link
JP (1) JPS54115296A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4288742A (en) * 1979-12-18 1981-09-08 Dartmouth College Electrical moisture sensor
CN102998346A (en) * 2012-12-03 2013-03-27 哈尔滨理工大学 Method for measuring moisture content of green sand

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4288742A (en) * 1979-12-18 1981-09-08 Dartmouth College Electrical moisture sensor
CN102998346A (en) * 2012-12-03 2013-03-27 哈尔滨理工大学 Method for measuring moisture content of green sand
CN102998346B (en) * 2012-12-03 2014-09-17 哈尔滨理工大学 Method for measuring moisture content of green sand

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