IT1249929B - APPARATUS AND PROCEDURE FOR VERIFYING THE SOLIDITY OF AN OBJECT. - Google Patents

APPARATUS AND PROCEDURE FOR VERIFYING THE SOLIDITY OF AN OBJECT.

Info

Publication number
IT1249929B
IT1249929B ITTO910481A ITTO910481A IT1249929B IT 1249929 B IT1249929 B IT 1249929B IT TO910481 A ITTO910481 A IT TO910481A IT TO910481 A ITTO910481 A IT TO910481A IT 1249929 B IT1249929 B IT 1249929B
Authority
IT
Italy
Prior art keywords
solidity
probe
contact
arm
verifying
Prior art date
Application number
ITTO910481A
Other languages
Italian (it)
Inventor
George Alberto Dawson
Original Assignee
Nz Government
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 Nz Government filed Critical Nz Government
Publication of ITTO910481A0 publication Critical patent/ITTO910481A0/en
Publication of ITTO910481A1 publication Critical patent/ITTO910481A1/en
Application granted granted Critical
Publication of IT1249929B publication Critical patent/IT1249929B/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/40—Investigating hardness or rebound hardness
    • G01N3/48—Investigating hardness or rebound hardness by performing impressions under impulsive load by indentors, e.g. falling ball
    • 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
    • G01N33/02—Food
    • G01N33/025—Fruits or vegetables

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth 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)
  • Food Science & Technology (AREA)
  • Medicinal Chemistry (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
  • Measuring Leads Or Probes (AREA)
  • Measuring And Recording Apparatus For Diagnosis (AREA)

Abstract

E' fornito un metodo e/o un apparecchio per la verifica di solidità di un oggetto e, in particolare, frutta o verdura con pelle sottile. L'apparecchio include un braccio leggero o sonda che contatta o viene contattato dall'oggetto con una velocità relativa sostanzialmente predeterminata tra l'oggetto ed il braccio o sonda al contatto. L'ampiezza del cambio di velocità del braccio o sonda viene misurata e costituisce un indicatore della solidità dell'oggetto. I mezzi di misura possono includere un interruttore attivato da una forza tale che il contatto con un oggetto più solido produrrà un cambiamento dello stato dell'interruttore mentre il contatto con un oggetto più morbido non lo farà.A method and / or apparatus for checking the solidity of an object and, in particular, fruit or vegetables with thin skin is provided. The apparatus includes a light arm or probe which contacts or is contacted by the object with a substantially predetermined relative speed between the object and the arm or probe upon contact. The amplitude of the speed change of the arm or probe is measured and constitutes an indicator of the solidity of the object. The means of measurement may include a switch activated by a force such that contact with a more solid object will produce a change in the state of the switch while contact with a softer object will not.

ITTO910481A 1990-06-22 1991-06-21 APPARATUS AND PROCEDURE FOR VERIFYING THE SOLIDITY OF AN OBJECT. IT1249929B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NZ234200A NZ234200A (en) 1990-06-22 1990-06-22 Testing firmness of fruit by measuring deceleration of driven impact member

Publications (3)

Publication Number Publication Date
ITTO910481A0 ITTO910481A0 (en) 1991-06-21
ITTO910481A1 ITTO910481A1 (en) 1992-12-21
IT1249929B true IT1249929B (en) 1995-03-30

Family

ID=19923280

Family Applications (1)

Application Number Title Priority Date Filing Date
ITTO910481A IT1249929B (en) 1990-06-22 1991-06-21 APPARATUS AND PROCEDURE FOR VERIFYING THE SOLIDITY OF AN OBJECT.

Country Status (4)

Country Link
JP (1) JPH04279840A (en)
FR (1) FR2663743B1 (en)
IT (1) IT1249929B (en)
NZ (1) NZ234200A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2122918B1 (en) * 1996-11-18 1999-08-01 Espan Food Mach DEVICE FOR NON-DESTRUCTIVE MEASUREMENT OF THE FIRMNESS OF FRUITS.
ES2192948B2 (en) * 2001-07-20 2005-10-16 Universidad Politecnica De Madrid FIRMING SENSOR OF FRUITS BY IMPACT.

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1179835A (en) * 1957-07-24 1959-05-28 Device for determining the degree of ripeness of pulpy fruits
US3421364A (en) * 1965-08-04 1969-01-14 Gkn Group Services Ltd Methods of and apparatus for measuring the hardness of materials
GB1172776A (en) * 1967-08-04 1969-12-03 Gkn Group Services Ltd Improvements relating to Apparatus for Measuring the Hardness of the Materials.
US3587857A (en) * 1968-11-14 1971-06-28 Us Agriculture Device for sorting fruit
GB8626711D0 (en) * 1986-11-08 1986-12-10 Syrinx Innovations Measuring firmness

Also Published As

Publication number Publication date
FR2663743A1 (en) 1991-12-27
NZ234200A (en) 1994-11-25
ITTO910481A1 (en) 1992-12-21
FR2663743B1 (en) 1994-04-29
ITTO910481A0 (en) 1991-06-21
JPH04279840A (en) 1992-10-05

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Legal Events

Date Code Title Description
0001 Granted
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19951229