Brookfield CT3 Texture Analyzer Manuel d'utilisateur télécharger pdf (Page 22)

Brookeld Engineering Labs., Inc. Page 22 Manual No. M08-372-C0113

NOTE: It is not recommended to conduct bloom testing with load cells greater than 1500g.

On instruments with load cells 10kg or higher, the bloom test will not appear on the

menu.

TPA TEST –performstwocompressioncyclesonthesampleandreportsveestablishedTexture

ProleAnalysisresults.

The operator sets the trigger value, target deformation (travel distance into the sample) and the test

speedusingtheTPAmenuscreen:

TEST:TPA

TRIGGER: XXX.X g

DEFORMATION: XXX.X mm

SPEED: XX.X mm/s

III.18

The operator depresses the start button to begin the test. In a TPA test the compression and return

strokes of both cycles occur at the programmed test speed. Target deformation for both cycles begins

atthetriggerpositionoftherstcycle.

Duringthetesttherunningscreenisseenasshownbelow:

TEST: TPA CYCLES: 02

DEFORMATION: XXX.X mm

LOAD: XXXX.X g

III.19

TPA cycles will count down to show the number of cycles remaining. Deformation and Load will

remain live displays during the test.

Testresultsareshownonthereportingscreen:

HARDNESS1: XXXX.X g

HARDNESS2: XXXX.X g

COHESIVENESS: XXX.XX

SPRINGINESS: XX.X mm

ADHESION: XXXX.X mJ

TEMP: XXX.X F

III.20

Hardness1isthepeakloadoftherstcompressioncycle.

Hardness2 is the peak load of the second compression cycle.

Cohesiveness is the ratio of A2/A1. A2 is the area under the compression stoke of the second cycle

andA1istheareaunderthecompressionstokeoftherstcycle.Ifthestructureofthesampleis

completelydestroyedontherstcompression,thisratioiszero.Ifthesampleisperfectlyelasticand

notdamagedatallbytherstcompressionthisratiois1.0Mostfoodproductswillfallsomewhere

in between 0 and 1.

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Brookfield CT3 Texture Analyzer Manuel d'utilisateur Page 22