Convenient to Analyze the Sample Fluid Viscosity
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Posted On :
Jan-04-2012
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Article Word Count :
758
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Viscosity is a measure of the resistance of a fluid, Which is being deformed by shear stress trial or tensile stress. In everyday term (for fluids only)
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Viscosity is a measure of the resistance of a fluid, Which is being deformed by shear stress trial or tensile stress. In everyday term (for fluids only), Viscosity is 'thickness'. Various Methods have been invented for measuring Viscosity. Each of Methods under these is selected and used in the WHERE IT industry is most suitabl. However, applications of Viscosity measurements are recently expanding into new fields subsequent publications are reduced as measurements of polymeric solutions, adhesive agents, coating materials, abrasives, engine oils, biodiesel fuels, and Even soft drinks, cosmetics and human blood. Measuring Viscosity with a sinewave Vibro
Meanwhile, Robust are rising for a Measuring System That Can minimise the energetic interference to a liquid sample as Rotative subsequent publications are reduced and barycentric shift of force in order to measure the viscous property That is inherent to the liquid. Moreover, there are Increasing Requirements for measuring continuousl a Wide Range of Viscosity in order to observe a change of Viscosity Caused by a temperature change, the CURING of an adhesive agent, etc..
To meet this challenge, the A & D Company, Ltd., Japan has introduced a new technology, ie, tuning-fork vibration method to measure Viscosity That satisfi the Above Requirements.
The recently developed, tuning-fork vibration viscometer not only realised downsizing and price-reduction of the instrument but ook made it I found to Perform wide-range, continuous measurements from 0.3 mPa s (equivalent of acetone) up to 10.000 mPa's. Measuring Viscosity with a sinewave Vibro Viscometer-2.jpg
More recently, with measurements as small as 2 ml of liquid sample Just have I found, Whose Applications Including Viscosity measurements of the subsequent publications are reduced as Fluids Resist Inks for Liquid Crystal and human blood. The high-performance, tuning-fork vibration viscometer is rapidly expanding scope of ITS applications to WHERE Viscosity measurements used to be impossible. Meanwhile, due to quality control queries in offshore manufacturing, the precision and the user-friendliness of the tuning-fork vibration viscometer have been gaining Attention ook at the production level.
Sine-Wave Vibration Viscometers are available from A & D India, a direct subsidiary of A & D Company, Japan, a well Known name in the field of Test & Measuring Instruments. A & D's Vibro Viscometer has a unit to detect Viscosity of a sample, Which is composed of two thin sensor plates That vibrate as shown above. It drives the sensor plates to vibrate at uniform sine-wave vibration in the reverse phase, like a tuning-fork.Measuring Viscosity with sinewave Vibro Viscometer-3.jpg
Disco to the measuring system, the sensor plates are driven with electromagnetic force at the Same frequency as resonance, Which is characteristic of Each page. Use of the resonance is the most ProMinent feature of this viscometer.
When the detection unit vibrato, it producs sizable magnitude of reaction force on the supporting unit of sensor plates via the spring plates. Each sensor plate is driven in the reverse phase Against The Other at the Same vibration frequency and amplitude in order to cancel the reaction force. This enable IT to Obtain stable sine-wave vibration.
The electromagnetic drive unit controls the vibration of the sensor plates in a sample at uniform amplitude utilizing the resonance of the detection unit. The driving electric current as the exciting force is detected as the magnitude of the viscidity Which is present Between the sensor plates and the sample. The Viscosity coefficient is given by the Correlation Between the driving electric current and the magnitude of the viscidity.
The resonance of the detection unit Allows Viscosity detection with high sensitivity in Lower Viscosity ranges, and ook Effectively acquires a driving force with just a small electric current Amount of.
Thusis, i think it is to measure Viscosity while Maintaining a wide dynamic range and high resolution. The newly developed SV method (tuning-fork Vibration Method) Achieve accuracy with Repeatability as high as 1% of Reading in Viscosity Measurement. There is no need to exchange sensor plates During continuous measurement. This is different from rotational viscometers, Which Require Several kinds of rotors, and in Which Continuity of Viscosity Measurement from Disturbed and lost When exchanging them.
The SV Series comes equipped with the WinCT-Viscosity, Windows Communication Tools Software. With WinCT-Viscosity, can you create real time graphs of the date on Viscosity and Temperature.
In Addition, the scaling function is available and the logarithm display is selectable in the function. Saving the measurement date by a CSV file and opening it with WinCT-Viscosity is very easy and convenient for Analyzing Sample Fluid Viscosity.
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Article Source :
http://www.articleseen.com/Article_Convenient to Analyze the Sample Fluid Viscosity_128542.aspx
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Author Resource :
Visit viscometer.co for all types of viscometer according to your need.
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Keywords :
viscometer, digital viscometer,
Category :
Business
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Business
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