GB1454674A - Tensiometers - Google Patents

Tensiometers

Info

Publication number
GB1454674A
GB1454674A GB2703674A GB2703674A GB1454674A GB 1454674 A GB1454674 A GB 1454674A GB 2703674 A GB2703674 A GB 2703674A GB 2703674 A GB2703674 A GB 2703674A GB 1454674 A GB1454674 A GB 1454674A
Authority
GB
United Kingdom
Prior art keywords
tube
mercury
outer body
tensiometer
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.)
Expired
Application number
GB2703674A
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.)
SAVVIDES L
Original Assignee
SAVVIDES L
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 SAVVIDES L filed Critical SAVVIDES L
Priority to GB2703674A priority Critical patent/GB1454674A/en
Publication of GB1454674A publication Critical patent/GB1454674A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N7/00—Analysing materials by measuring the pressure or volume of a gas or vapour
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/24—Earth materials
    • G01N33/246—Earth materials for water content

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Remote Sensing (AREA)
  • Food Science & Technology (AREA)
  • Medicinal Chemistry (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)

Abstract

1454674 Mercury tensiometer L SAVVIDES 18 June 1974 27036/74 Heading G1S A mercury tensiometer for measuring the moisture suction of soil comprises an outer body 1 for containing water, the outer body having a water permeable part 4, and a measuring unit 2 dispersed within the outer body, the measuring unit comprising a closed inner body 6 containing a pool of mercury 7, a capillary tube 8 immersed at its lower end in the mercury and communicating at its upper end with the outer body, and a tube 9 connecting the inner body to atmosphere. As shown, the measuring unit 2 is suspended from stopper 5 by the tube 9. The outer and inner bodies and the tube 8 are preferably of transparent plastics material. In use, the outer body is filled with water, and the measuring unit inserted. As the stopper is pushed into position, water from the outer body is forced down tube 8 to displace air therefrom. Any water entering the inner body may be removed - through tube 9 by turning the tensiometer upside down. The lower end of the tensiometer is placed in the soil, and the height to which the mercury rises in tube 8 in a predetermined time is measured.
GB2703674A 1974-06-18 1974-06-18 Tensiometers Expired GB1454674A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2703674A GB1454674A (en) 1974-06-18 1974-06-18 Tensiometers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2703674A GB1454674A (en) 1974-06-18 1974-06-18 Tensiometers

Publications (1)

Publication Number Publication Date
GB1454674A true GB1454674A (en) 1976-11-03

Family

ID=10253128

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2703674A Expired GB1454674A (en) 1974-06-18 1974-06-18 Tensiometers

Country Status (1)

Country Link
GB (1) GB1454674A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2137760A (en) * 1983-04-06 1984-10-10 Soil Instr Limited Indicating soil moisture content
US5644947A (en) * 1995-01-19 1997-07-08 Lockheed Idaho Technologies Company Tensiometer and method of determining soil moisture potential in below-grade earthen soil
DE102009014946A1 (en) 2009-03-30 2010-10-21 Wollesen, Dirk, Dr. Tensiometer for measuring water tension in e.g. soils, has water absorptionable measuring medium connected with sensing element of sensor that directly or indirectly detects water content of measuring medium

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2137760A (en) * 1983-04-06 1984-10-10 Soil Instr Limited Indicating soil moisture content
US5644947A (en) * 1995-01-19 1997-07-08 Lockheed Idaho Technologies Company Tensiometer and method of determining soil moisture potential in below-grade earthen soil
US6263726B1 (en) 1995-01-19 2001-07-24 Bechtel Bwxt Idaho, Llc Sidewall tensiometer and method of determining soil moisture potential in below-grade earthen soil
DE102009014946A1 (en) 2009-03-30 2010-10-21 Wollesen, Dirk, Dr. Tensiometer for measuring water tension in e.g. soils, has water absorptionable measuring medium connected with sensing element of sensor that directly or indirectly detects water content of measuring medium

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee