Comparative technical specifications

Transcription

1 Comparative technical specifications Dept: School of Physical Sciences Tender No.: NIT-03/2014 File ref.: NC-02-NP-SPS Indentor: Dr. K. Senapati/ Dr. S. Prusty/ Dr. G. S. Babu Date of tender opening: 20/06/2014 In total six parties have participated in the bid for parts of the tender. Following is a technical comparison of the items quoted by these parties. The reasons of disqualification (if any) are also mentioned in the table. No. Item description 1. g measurement using Compound pendulum setup Specification: compound pendulum, knife edge arrangement with holder to hang pendulum to a wall and 2 g measurement using free fall setup Specification: free fall setup with solenoid, 2 photo-gate M/s. Bipin Behari Dey & Co, Bhubaneswar M/s. Phywe system GMBH, Germany M/s. Hindustan Scientific Linkers, Cuttack M/s. Osaw Industrial products Pvt. Ltd., Ambala Not quoted Qualifies Qualifies Disqualifies d coupled pendulum) M/s. Edutech India Pvt. Ltd., Chennai Disqualifies d computer interfaced version not suitable for 1 st year lab) M/s. Didactic systems Not quoted Not quoted Qualifies Qualifies Qualifies Qualifies Qualifies

2 detectors to measure time of the fall, 3 different size metal balls and necessary electronics equipment to display the time of fall and 3 Determination of Young s modulus by bending of beam setup Specification: 3 different metal slabs, stand, weights and arrangement to hang weights with a knife edge holder and any other necessary 4 Thermal conductivity of poor conductor by plate (Lee s) method setup Specification: Materials to be investigated Perspex discs of dimension of about 2.5 cm diameter and 0.2 cm thickness, heating arrangement with electrical heaters (120 ohm, ¼ watt, 6 heaters in parallel), temperature measurement by Cu-constantan thermocouple along with Constant current source (0-500 ma) and DC differential Not quoted Qualifies Qualifies Not quoted Not quoted Qualifies Not quoted Not quoted Disqualifies Quoted a system where students will have to handle very hot metallic parts. Not suitable from safety point of view. Not quoted Qualifies Qualifies

3 amplifier (three inputs, two amplifications of 10 and 100) and 5 Viscosity measurement setup Specification: 1 meter long, 1 inch diameter plastic tubes, stand for holding the tubes vertically and any other necessary 6 Velocity of Sound by liquid column resonance method setup. Specification: Variable height liquid column + vertical stand and two tuning forks with 1x and 2x frequency and necessary electronics for capturing sound waves and 7 Measurement of Specific heat of Graphite setup. Specification: Graphite rod, heater, V variable transformer and Cuconstantan thermocouple with a DC differential amplifier (three inputs, two Not quoted Not quoted Qualifies Qualifies Not quoted Qualifies Not quoted Not quoted Qualifies Qualifies Not quoted Disqualifies d velocity of sound inside liquid using ultrasonic interferometry, not suitable for present case) Not quoted Not quoted Qualifies Not quoted Not quoted Qualifies

4 amplifications of 10 and 100) and 8 Surface Tension by pull out method (manual method without any interface) Specification: stand, force measurement unit(anolog), surface tension platinumiridium ring, a table holding petri dish, variable height arrangement of table with an option to place a magnetic stirrer on top of the tripod and 9 Determination of J, Joule constant by electrical method Specification: Copper Calorimeter with adequate insulation, Arrangement to hold thermometer + measuring thermometer, DC power supply and heater and Not quoted Qualifies Not quoted Qualifies Not quoted Qualifies Not quoted Not quoted Quoted but complete description needed Not quoted Qualifies Qualifies 10 Spring constant Not quoted Qualifies Qualifies Not quoted Not quoted Qualifies

5 measurement for soft springs setup Specification: 3 Soft springs with different spring constant of each 10 sets, calibrated mass with hooks, function generator and vibrator and any other necessary 11 Determine moment of inertia of different bodies and confirming Steiner s parallel axis theorem (complete setup) Specification: setup to calculate moment of inertia by calculation of oscillation period of torsion axle, hollow and solid cylinders with equal mass and different radii, solid sphere with same moment of inertia as one of the solid cylinder and arrangement to test their moment of inertia using torsion oscillations and Not quoted Qualifies Disqualifies (Quoted torsion pendulum with stainless steel wire as torsion axis. Arrangement is not suitable for handling by 1 st year students) Not quoted Not quoted Qualifies 12 Conservation of linear momentum Specification: Conservation Not quoted Qualifies Not quoted Qualifies Qualifies Qualifies

6 of linear momentum for both elastic and inelastic collisions using an air track and manual measurement system (without any computer interface) and any other necessary 13 Conversion of Ammeter to Voltmeter and Voltmeter to Ammeter Specification: 0-30 V, 0-2 A DC supply, 0-10 ma DC ammeter, 0-50 ma DC ammeter, 0-10 V DC voltmeter, 0-20 V DC voltmeter, Variable resistance box (2 sets) and 14 Study of electromagnetic damping of a compound pendulum and to find the variation of damping coefficient with the distance of the conducting lamina Specification: Compound pendulum attached with metal plate, bar magnet, photo-gate digital timer and Not quoted Not quoted Not quoted Not quoted Not quoted Not Quoted Not quoted Qualifies Qualifies Not quoted Not quoted Qualifies

7 15 Determination of the Value of Horizontal component of Earth s Field (H) using Tangent Galvanometer and an Ammeter setup Specification: Tangent Galvanometer, battery eliminator, D.C. Ammeter, reversing key and spirit level and 16 Study of the Variation of Magnetic field intensity with the Current along the axis of a Helmholtz coil set up. Specification: ma current source, Gauss meter, movable hall probe along the centre of coils, One fixed and other movable coil with appropriate measuring scale on the coil arrangement box, arrangement to set the connect the coils both in Helmholtz and anti- Helmholtz configurations and Not quoted Not quoted Qualifies Not quoted Not quoted Qualifies Not quoted Qualifies Disqualifies d single coil, not Helmholtz pair) Qualifies Qualifies Qualifies

8 17 Determination of resolving power of telescope Specification: Na vapour lamp, power supply for lamp, 3 pairs of source slits, Telescope with adjustable aperture at Objective lens with a graduated main scale and vernier scale and any other necessary component wise breakup 18 Study of Newton s rings by interference Specification: Na lamp with power supply, complete arrangement with glass plate, plano convex lens and travelling microscope and 19 Determination of wavelength of the laser by diffraction of light using variable single slit, wire and variable double slit study setup Specification: single slit with variable width and adjustable height stand, wire Qualifies Not quoted Qualifies Qualifies Not quoted Disqualifies d spectrometer arrangement not suitable for our experiment) Qualifies Qualifies Qualifies Qualifies Not quoted Qualifies Qualifies Qualifies Disqualifies (Quoted diffraction grating) Disqualifies (Variable slits not available) Disqualifies (Variable slits not available) Qualifies

9 arrangement with adjustable height stand, two slits with variable width and adjustable height stand and any other necessary 20 Thermal conductivity of copper (good conductor) by Searle s method Specification: arrangement for heating and temperature measurement, arrangement for continuous flow of water to one end of copper rod with a dedicated pump and 21 Electrical conductivity of copper/aluminium rod by four contact method Specification: Copper and aluminium rod with arrangement to insert banana clips, rheostat, variable 1-10 V D.C. constant current source which can drive current up to 6 A, DC Differential amplifier with amplification factor of 100 and 1000, cables with banana clips for connections and any other necessary component wise Not quoted Qualifies Qualifies d two options OMEGA : disqualifies BESTO: Qualifies) Qualifies Disqualifies d setup for bad thermal conductors) Not quoted Not quoted Qualifies Not quoted Qualifies Not quoted Qualifies

10 breakup 22 Determination of Stefan s constant using an incandescent lamp and photovoltaic cell. Specification: An incandescent lamp, optical bench with two stands, photovoltaic cell, voltmeter, D.C. power supply, D.C. voltmeter and D.C. ammeter, 10 spare incandescent lamps and 5 spare photovoltaic cell and 23 Conversion of unpolarized light to polarized light and verification of Malu s law Specification: light source, polariser, analyser, photocell, photo detector and any other necessary component wise breakup 24 Electrostatics : a) Field electrometer for demonstrating electrical charges and b) Coulomb s law verification by manual method (complete setup) Specification: for a) Field electrometer, arrangement for producing electrical Qualifies Qualifies Disqualifies (black box arrangement NOT suitable for learning individual components of the experiment) Qualifies Disqualifies d polarized laser) Qualifies Quoted two options OMEGA: disqualifies BESTO: qualifies Not quoted Qualifies Qualifies Qualifies Disqualifies d polarized laser and requires computer interface) Qualifies Not quoted Qualifies Not quoted Not quoted Qualifies Qualifies

11 charges and simple detection system by repelling the charges and for b) high voltage power supply 25 KV, force sensor, cables for high voltages, precision metal rail, insulated stand rod, electrometer amplifier and 25 Vernier calipers Specification least count: cm 26 Travelling microscopes Specification: measurement arrangement with x, y, z directions using main scale and vernier scale with least count 0.01 cm. 27 Screw gauge Specification: least count: cm 28 Precision digital soldering station Specification: soldering iron and a replacement iron, heating unit with digital supply and soldering rest, temperature range 150 to 450 degree centigrade, 0.8 mm round tips (set of 3 ), 0.4 mm round tips (set of 3) 29 Isolation Transformer Specification: 5 kw Not quoted Not quoted Qualifies Not quoted Not quoted Not quoted Not quoted Not quoted Qualifies Qualifies Not quoted Not quoted Not quoted Not quoted Qualifies Not quoted Not quoted Not quoted Not quoted Not quoted Not quoted Not quoted Not quoted Not quoted Not quoted Not quoted Disqualifies Not quoted Not quoted Not quoted

12 Input Triple (3) phase; Output: Single phase; Load regulation: Better than 3.5%; Leakage current: < 20 A; Cooling: Forced air; Temperature: C; 30 Weighing Digital balance Specification: min 1 milli gram, max. at least 1500 gr. 31 Basic Digital multimeter (max. current 10 Amp, Voltage range V) with specifications 3-1/2 Digits, Backlit LCD, Fully Protected, Data Hold, AC Voltage, DC Voltage, DC Current, Resistance, Diode & Continuity Test. d power 1 kw) Not quoted Not quoted Qualifies Quoted three options, out of which only Citizen C/2000 qualifies Not quoted Not quoted Qualifies Quoted two options. DMM 101 qualifies. Not quoted Not quoted Not quoted Not quoted Not quoted Not quoted 32 Stopwatch (analog) Not quoted Not quoted Qualifies Not quoted Not quoted Not quoted 33 Meter scale (stainless Not quoted Not quoted Qualifies Not quoted Not quoted Not quoted steel) 34 Measuring tape (3 meter) Not quoted Not quoted Qualifies Not quoted Not quoted Not quoted