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Tatabad, Coimbatore, Tamil Nadu
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Physics & Chemistry Research Instruments

Our product range includes a wide range of youngs modulus apparatus, resistance decade boxes, wheatstone bridge, kelvin double bridge and nanofluid interferometer.

Youngs Modulus Apparatus

Youngs Modulus Apparatus
  • Youngs Modulus Apparatus
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Approx. Price: Rs 64,500 / PieceGet Latest Price

Product Details:

Minimum Order Quantity1 Piece
Usage/ApplicationIndustrial
BrandV TECH
MaterialAluminium Alloy
ShapeRectangular

For Determination Of• Young’s Modulus,• Ultrasonic Frequency Velocity

Non-Destructive Testing of Material is an important part of Engineering Education as it gives information without deformation in the shape and size of the material. One of the NDT techniques, Piezoelectric Technique is widely used for the measurement of composition dependent properties such as ultrasonic velocity, compressibility, elastic constant, Young’s modulus and Bulk modulus. Its suitability for metals, plastics, polymers and crystals etc makes it versatile tool for Engineering Physics, Material Science and Polymer Science. This low cost NDT apparatus is being used in several I.I.T.s/Universities/Engineering Colleges for laboratory experiments and Research work. 

In this technique the specimen is cemented to a quartz rod of identical cross section and resonant frequency (fc) of the composite system is determined using the apparatus. The resonant frequency of the quartz rod (fq) is also determined. From the knowledge of (fq), (fc) and the masses of the quartz (mq) and the specimen (ms), the resonant frequency of the specimen fs is evaluated using the relation 

ƒS =ƒC  + mq/mc   ( ƒcq)

Using the value of ƒS  , the length of the specimen (L) and the density of the specimen, the velocity of the ultrasonic waves in the specimen (v ) and compressibility (βad) can be calculated using relations 

V=2. ƒS . L
βad=1/P.V2 

where P is density of specimen . 

Young''s Modulus of specimen is calculated using relation 

r=4. ƒS. L2.P

INSTRUMENT: It consists of Piezoelectric Oscillator, power supply, quartz rod, holder, quartz rod with sample, connecting cables and R.F. meter.ACCESSORY: Any general purpose C.R.O.(not supplied with the instrument). 
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Resistance Decade Boxes

Resistance Decade Boxes
  • Resistance Decade Boxes
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Approx. Price: Rs 8,500 / PieceGet Latest Price
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Product Details:

Minimum Order Quantity1 Piece
BrandV TECH

Wide range Decade boxes for product design or calibration checksHeavy duty durable constructionSeperate grounding terminalThree binding posts permit isolated substitutions1% Resistance substitution from 1 to 11,111,110½Seven Decade Ranges of ResistanceValues can be changed in 1½ increments0.3W resistors0.3½ internal zero resistance
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Wheatstone Bridge

Wheatstone Bridge
  • Wheatstone Bridge
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Approx. Price: Rs 9,500 / PieceGet Latest Price

Product Details:

Minimum Order Quantity1 Piece
BrandV TECH

Features:

  • Useful for measuring Low Resistance values
  • Range 0.001 to 11.1MΩ
  • Accuracy ± 0.05%
  • In-built 4.5V dry battery
  • Best Quality Manganin Wire is used for coils
  • In-built high sensitive galvanometer of 20uA/mm
  • Suitable for Murray Varlex Loop Test
  • Optional Light Spot Galvanometer can also be supplied
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Kelvin Double Bridge

Kelvin Double Bridge
  • Kelvin Double Bridge
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Approx. Price: Rs 7,600 / PieceGet Latest Price

Product Details:

Minimum Order Quantity1 Piece
Usage/ApplicationIndustrial
BrandV TECH

Suitable for the use of wires and cable preparers and Transformer industry

Extensively used for fi nding the resistance of transformer winding, contact
resistance of relays etc.

Measures in the range of 0.2 Micro ohms to 11 Ohms

Measurement Ranges 2 Milli Ω to 11Ω, 0.2Milli Ω to 1.1Ω, 20 Micro Ω to
 11Ω, 2 Micro Ω to 0.11Ω and 0.2 Micro Ω to 0.0011Ω

Max Current 10A intermittent and 5A continuous

Accuracy ± 0.05%

Battery Reversing Switch provided to reverse the current in the bridge to eliminate
thermal effect

Complete with Spot Refl ecting Galvanometer, Heavy Duty DC Current Source,

Conductivity Attachment
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Nanofluid Interferometer

Nanofluid Interferometer
  • Nanofluid Interferometer
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Approx. Price: Rs 1.3 Lakh / PieceGet Latest Price

Product Details:

Minimum Order Quantity1 Piece
BrandV TECH

OBJECTIVE :

1. Characterization of Nanofluids like Ag/Au Ferrofluids etc.2. To evaluate modest nano particles concentration in the fluid fo rsignificant enhancement of its property.3. Prediction of enhanced thermal conductivity due to suspension of the metallic nano particles with very low concentration in to the polymeric fluids.4. Sound Velocity and compressibility of nano particles with liquid suspension.5.Study of Phase transition and to detect/assess weak and strong molecular interactions in Nanofluids.

WORKING PRINCIPLE :

Nanofluid Interferometer generate sound wave in Nanofluids of different concentrations at different temperatures.This instrument is low cost effective tool to optimise the concentration of nanoparticle for best results to achieve the desired property.In this instrument, Ultrasound waves of knownfrequency are produced by a Piezo-Electric transducer and its wave length is measured with digital micrometer with high accuracy within ±0.001mm.From the knowledge of frequency (ƒ) and wavelength(λ); the compressibility of nanofluid is determined by the following formula :Sound Velocity in nanofluid v =λ.ƒAdiabatic compressibility ßad=(p.v2)-1where ρ is density of nanofluid. 

DESCRIPTION

The Nanofluid Interferometer consists of the following parts:(i) Wave Generator(ii) Nanofluid Cells(iii) Temperature Controller Unit. (RT to 90°C)(iv) Nanofluids – Chemicals to make Ag nanofluid in various concentrations.
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Mohammed Khan (Service Manager)
Instrumentation
11 A, Sudarar Street
Tatabad, Coimbatore - 641027, Tamil Nadu, India


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