noodle

Product:NOODLESObjective: Comparison of elasticity (or 憈ensile strength? of noodlesTA Settings: Mode: Measure Force in TensionOption: Return To StartPre-Test Speed: 1.0 mm/sTest Speed: 3.0 mm/sPost-Test Speed: 10.0 mm/sDistance: 100mmTrigger Type: Auto - 5gTare Mode: AutoData Acquisition Rate: 200ppsAccessory: Spaghetti tensile grips (A/SPR) using 5kg load cellTest Set-Up: Before carrying out the tensile test one must calibrate the rig arms to ensure that the starting distance between the arms is the same for each sample being tested (see below for instructions as to how this is done).Test the noodles individually by placing one end into the lower rig arm slot and winding theloosened arm sufficiently, in order to anchor the noodle end (away from the slot) by at least two revolutions of the arm. The arm is tightened and the same procedure is performed to anchor the other noodle end to the upper arm. When doing this, one must ensure that while trying to avoid too much slack in the sample one does not wind the sample too tightly and hence create a false trigger.Rig Calibration: Lower the grip arms, so that they are close together. Click on T.A. (in the menu bar) then CALIBRA TE PROBE and specify the distance that you want the arms to start apart from each other for each test - e.g. 15mm is suggested.Typical plots:The above curves were produced from 3 types of dry packaged noodles. Each batch was cooked for 10 minutes in boiling water, drained and rinsed and then left to stand for 15 minutes prior to testing.Observations: Once the trigger force of 5g is attained the graph proceeds to plot the effect on the noodle under tension. When the elastic limit/tensile strength is exceeded the noodle snaps (observed as the maximum tension force). It is quite clear that Type 3 is considerably less elastic whilst having more tensile strength than Types 1 and 2 (which themselves appear to be very similar in tensile strength).Data Analysis:Once tests have been performed, values of particular interest for sample analysis can be automatically obtained by a MACRO, e.g.Clear Graph ResultsRedrawSearch ForwardsGo to Min. TimeGo to Abs. +ve V alue ForceMark V alue ForceThis macro is a general example for the analysis of a curve such as the one above. Any changes made to the test parameters or significant differences to the shape of the curve profile may require optimisation of this macro.Sample Results: Test results obtained from 10 noodle samples of each different noodle type give the following mean maximum force values:Noodle Type Mean Maximum Force慐lastic Limit/Tensile Strength?(?S.D.)(g)1 39.3 ?3.42 41.9 ?2.43 50.0 ?1.3Notes:?The measurement of distance at the break would give an indication of sample elasticity - the greater the extension distance, the more extensible/elastic is the sample.?Before commencing each test ensure that there are no apparent weaknesses along the exposed sample length which would hence result in lower break forces and distance of break values.?When analysing the results it is likely that the variation in break distance values will be quite high. This is due to slight slippage of the first loop of the sample around the rig arm.?When attempting to optimise test settings it is suggested that the first tests are performed on the hardest samples to anticipate the maximum testing range required and ensure that the force capacity allows testing of all future samples.Recommendations:If an elastic modulus in fundamental units is required then it can be obtained from the relationship: E = F lo . 1t Ao vwhere lo is the original length of the noodles between the limit arms; Ao is the original cross-sectional area of the product;F is the initial slope and v is the rate of movement of thetupper arm.(If this is required in fundamental units then F/t should be in N.s-1, lo in metres, Ao in metres2 and v in m/s-1.)N.B.This application study has been designed for a specific sample(s) and it therefore must be noted that any deviation from this sample in terms of sample size, shape, formulation etc. may cause large deviations or indeed may require a different testing method.?Copyright 2000 by Stable Micro Systems Ltd. All Rights Reserved.Stable Micro Systems Ltd., V ienna Court, Lammas Road, Godalming, Surrey, GU7 1YL. Tel: *44 1483 427345 Fax: *44 1483 427600Product:NOODLESObjective: Comparison of hardness and adhesiveness of noodles using a Cylinder ProbeTA Settings: Mode: Measure Force in CompressionOption: Return To StartPre-Test Speed: 2.0 mm/sTest Speed: 2.0 mm/sPost-Test Speed: 2.0 mm/sStrain: 75%Trigger Type: Auto - 10gTare Mode: AutoData Acquisition Rate: 200ppsAccessory: 35mm Cylinder Probe (P/35) using 5kg load cellTest Set-Up: Before carrying out a compression test in strain one must calibrate the probe to acknowledge the base of the machine as zero. (see below for instructions as to how to do this).Test two noodle strands close together at a time, ensuring that the strand test region is positioned centrally under the probe.Probe Calibration: Lower the probe, so that it is close to the bed surface. Click on T.A. (in the menu bar) then CALIBRA TE PROBE and specify the distance that you want the probe to return to after sample compression for each test - e.g. 15mm is suggested.Typical plots:The above curves were produced from 3 types of dry packaged noodles. Each batch was cooked for 10 minutes in boiling water, drained and rinsed and then left to stand for 15 minutes prior to testing.Observations: Once the trigger force of 10g is attained the graph proceeds to plot the effect on the noodle under compression to 75% strain. The maximum force correlates to the hardness of the sample, the greater this value the harder is the sample. In terms of maximum force values (慔ardness? there appear to be no distinct differences between noodle types. It is quite clear however, that Type 3 noodles are considerably less sticky than Types 1 and 2 (which is the most sticky) which is seen from the negative areas of the plots.Data Analysis:Once tests have been performed, values of particular interest for sample analysis can be automatically obtained by a MACRO, e.g.Clear Graph ResultsRedrawSearch ForwardsGo to Min. TimeGo to Abs. +ve V alue ForceMark V alue ForceGo to Force 0gDrop Anchor 1Go to Force 10gDrop Anchor 2AreaThis macro is a general example for the analysis of a curve such as the one above. Any changes made to the test parameters or significant differences to the shape of the curve profile may requireoptimisation of this macro.Sample Results: Test results obtained from 10 noodle samples of each different noodle type give the following mean maximum force values and their mean negative areas:Noodle Type Mean Maximum Force慔ardness?(?S.D.)(g) Mean Negative Area 慉dhesiveness?(?S.D.)(g s)1 4473.1 ?241.9 6.6 ?1.22 4372.8 ?285.4 8.5 ?1.23 4344.1 ?236.2 4.3 ?0.8Notes:?When laying the samples across the bed surface ensure that they are completely flat. A slightly raised sample will cause an earlier trigger compared to that of a flat sample and hence will cause differences in the compression distance at 75% strain. The samples should also be positioned the same distance apart each time.?It is important for comparison purposes to keep the sample preparation, (i.e. duration of cooking, drainage time before testing etc.) the same for each batch as this could introduce error into the test.?When attempting to optimise test settings it is suggested that the first tests are performed on the hardest samples to anticipate the maximum testing range required and ensure that the force capacity allows testing of all future samples.N.B.This application study has been designed for a specific sample(s) and it therefore must be noted that any deviation from this sample in terms of sample size, shape, formulation etc. may cause large deviations or indeed may require a different testing method.?Copyright 2000 by Stable Micro Systems Ltd. All Rights Reserved.Stable Micro Systems Ltd., V ienna Court, Lammas Road, Godalming, Surrey, GU7 1YL.Tel: *44 1483 427345 Fax: *44 1483 427600。