Scientific Laboratory Instruments - 01
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We are Offering Scientific Laboratory Instruments Dscn0669.
physics chemistry lab instrument
500 - 650 Per Piece
1 Piece (MOQ)
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Heat & Mass Transfer Lab
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We are engaged in offering quality-tested devices and equipment for Heat & Mass Transfer Lab. The equipment offered by us undergoes strict quality-tests based on different parameters before the final dispatch. Owing to our well-established infrastructure facilities, we are capable of meeting the varied requirements of the buyers and educational institutions. Heat transfer lab : Thermal Conductivity of Metal Rod Apparatus Thermal Conductivity of Liquid Apparatus Stefan Boltzmann Apparatus Pin Fin In Natural/Forced Convection Apparatus Forced Convection From Horizontal Cylinder Apparatus Parallel Flow/Counter Flow Heat Exchanger Apparatus Counter Flow Heat Exchanger Apparatus Composite Wall Apparatus Lagged Pipe Apparatus Critical Heat Flux Apparatus Shell and Tube Heat Exchanger Apparatus Study of Drop-Wise And Film-Wise Apparatus Unsteady State of Heat Transfer Apparatus Finned Tube Heat Exchanger Apparatus Forced Drought Cooling Tower Apparatus Thermal Conductivity of Insulation Powder Apparatus Thermal Conduction of Liquid by Guarded Hot Plate Method Apparatus Natural Convection From Vertical Cylinder Apparatus Emissivity Measurement Apparatus Specific Heat of Air Apparatus Parallel Flow Heat Exchanger Apparatus Unsteady State of Heat Transfer Apparatus Heat Pipe Demonstrator Apparatus Composite Cylinder Apparatus Heat Conduction Apparatus Pool Boiling Apparatus Two Phase Heat Transfer Apparatus Finned Tube Heat Exchanger Apparatus Plate Type Heat Exchanger Apparatus U Tube Finned Heat Exchanger Apparatus Vortex tube Apparatus
Four Probe Experiment (basic Model)
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We Offer Four Probe Method, Dfp-02, It is One of the Standard and Most Widely Used Method for the Measurement of Resistivity of Semiconductors. the Experimental Arrangement is Illustrated. in Its Useful Form, the Four Probes are Collinear. the Error Due to Contact Resistance, Which is Specially Serious in the Electrical Measurement On Semiconductors, is Avoided By the Use of Two Extra Contacts (probes) Between the Current Contacts. in this Arrangement the Contact Resistance May all Be High Compare to the Sample Resistance, But as Long as the Resistance of the Sample and Contact Resistances are Small Compared with the Effective Resistance of the Voltage Measuring Device (potentiometer, Electrometer or Electronic Voltmeter), the Measured Value Will Remain Unaffected. Because of Pressure Contacts, the Arrangement is also Specially Useful for Quick Measurement On Different Samples or Sampling Different Parts of the Same Sample. the Experiment Consists of the Following: (i). Four Probes Arrangement, Fpa-02: it Has Four Individually Spring Loaded Probes. the Probes are Collinear and Equally Spaced. the Probes are Mounted in a Teflon Bush, Which Ensure a Good Electrical Insulation Between the Probes. (ii). Sample: Germanium Crystal in the Form of a Chip (iii). Oven: It is a Small Oven for the Variation of Temperature of the Crystal from the Room Temperature to About 200c (max.) (iv). Thermometer Dfp 02-thr (0-150c) (v). Four Probe Set-up, Dfp-02 the Set-up Consists of Three Units in the Same Cabinet. (a) Multirange Digital Voltmeter (b) Constant Current Generator (c) Oven Power Supply: Built-in for the Above Oven. typical Results Obtained from this Set-up are Shown in the Datasheet. the Experimental Set-up is Complete in all Respect.
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