The product is composed of a transparent wind proof cover, a hanging light aluminum foil ball, an angle indicator, a adjustable distance metal ball and a base. Transparent windshield size: 103mm*55mm*115mm, angle indicator range 0-70 degree, minimum angle: 1 degree, lightweight aluminum foil ball and a metal ball diameter: 20mm, the metal ball can adjust the distance of not less than 20mm. With a handle,the total size:165mm*90mm*135mm.
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It is used to make object vibration and sound production experiment, loudness and volume of sound experiment, object sound transmission experiment and simple telephone.
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The seat is provided with a connecting device and a wiring polarity identification; electrode using carbon rod production, diameter 4mm, length 45mm, the closed room size was 120 mm * 50 mm * 25MM, volume 15ml; discharge nozzle is made of glass, the length of about 50mm, and the connecting hose products using milk hose.
The product is made of transparent polycarbonate material. It is made up of experiment base, electrode, airtight chamber, observation tube, air vent and funnel.
The overall size of the instrument is about 150 mm * 60 mm * 190mm, and the operating voltage of the instrument is DC 12V.
The product is composed of 10 30ML reagent bottle, a pipette ball, 6 100MM plastic petri dish. A 10ML scale Straw, a wooden handle tube clip, a stainless steel tweezers and a medicine spoon, needle anatomy 2, 2 stirring rods, 12 plastic bottle, a slice of 50 suits, 100 slides and coverslips, a mini magnifying glass, a stainless steel scissors, a 5ML pipette and 10 glass dropper, respectively 100ML, 250ML and 1000ML, a 60ML plastic funnel, a 100ML plastic cylinder, 3 plastic beaker, 3 pieces of paper label, an operation the knife and 10 blades, 10 test tubes, a mark pen and -10-110 C red liquid thermometer.
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Demonstrate the use of solids in thermal expansion and cold contraction.
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Densitometer is a compact device that can be used to measure turbidity (in the range of 0.5 to 4.0 McFarland units) of cell suspensions in a variety of life science applications.
This is ideal for determining concentration of cells for fermentation process, detecting the susceptibility of micro-organisms to antibiotics, identifying micro-organisms with various test systems, and measuring optical density at fixed wavelength.
This product features a measurement time of 1 second, a precision of 3%, and small footprint and low-profile design.
Solar Training Set Power Case Electronic Engineering Lab
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Cam mechanisms are used in many areas of technology, such as for valve control in combustion engines. The cam follower can work either as a roller tappet, cup tappet, or trailing lever. The stroke is measured using a mechanical position measurement gauge. A scaled disk indicates the associated angle of rotation. The well-structured instructional material sets out the fundamentals and provides a step-by-step guide through the experiments. The simple experimental set-up permits quick demonstration of the action principle, and can be used to demonstrate the influence of different cam shapes.
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The extended surface comprises a 10mm diameter, long brass rod mounted horizontally and heated at one end with a 20 Watt, 24V DC heater.
Eight thermocouples mounted at 50mm intervals along the rod provide the temperature distribution.
A small-scale accessory designed to demonstrate the temperature profile and heat transfer characteristics for an extended surface when heat flows along the rod by conduction and heat is lost along the rod by combined convection and radiation
A comprehensive instruction manual is supplied.
Temperature of the ambient air is measured by an independent thermocouple.
The accessory is mounted on a PVC baseplate which is designed to stand on the bench top and connect to the Heat Transfer Service Unit without the need for tools.
The Liquid Sedimentation Apparatus is designed to study the settling characteristics and particle sizes of suspended solid. The rear panel is translucent with back lighting. Scales are provided on the tubes. Sedimentation rate is observed using a stopwatch. The tubes can be removed for washing, filling or mixing of solid particles. Five transparent glass sediment tubes are mounted vertically on a rigid frame.
Experiments:
Settling rate curve.
Effect of suspension height on sedimentation rates.
Effect of concentration on sedimentation rate.
Effect of particle size distribution.
Effect of flocculent.
The test rig comprises of a refrigerating chamber with forced draught evaporator fed by a thermostatic expansion valve, a condensation unit of 250 W; transparent access panel; refrigeration circuit with flow display screen equipped with heat exchanger for subcooling the liquid and the solenoid valve; electric defrost system and control through programmable PLC and timing. Our equipment allows students to visualize and study the process of industrial refrigeration. Despite being a bench top unit, it includes all the essential components of a large scale installation. The unit has been built using modular systems and it can reach a cooling temperature of -30ºC. It includes a drying filter and a liquid storage tank.
Experimental Capability:
Heat transfer and thermal insulation
Coolants
Calculation of thermal loads
Refrigerating chambers and industrial refrigeration
Automatic control and instrumentation
Psychrometric processes (low temperature)
Refrigerator cycles
Steam compression
Pressure and vacuum mode shift function build-in 82 refrigerants according to standard refrigerants pressure and temperature relationship database.
Real-time vacuum pressure test and percent indicate
Test range Measurement of xacuum: -101Kpa~0Mpa
Positive pressure: 0Kpa~6Mpa
Low power indicate. Batteries life:30H. 9V.
Pressure units: KPa, Bar, Psi, Torr, Kg F/cm2,InHg, MmHg
Refrigerant: -101Kpa~4Kpa
Accuracy: ±0.5%
Overload: 100Bar,10Mpa
Resolution: 1Kpa
Compressometer Extensometer consists of a central ring for the diametrical extension measure to be fixed on the compressometer. To measure both axial deformation and diametrical extension of cylinder specimens dia. 150x300mm, 160x320mm, 8x 12 under compression stress, by determining the elastic modulus.
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Drill's part has patent, can grind the drill's front cutting lip, point angle, lip relief angle, you also can control the centre spot at random instead of centre drill, escape of chips easily, drilling with a light heart.
Tap's part has patent that can grind tap's front cutting lip of 2-flute, 3-flute, 4-flute tap. Choosing can grind 5-flute.
Grinding Wheel: CBN Wheel For HSS Drill Bit / SD Wheel for Carbide Drill Bit.
Complex re-sharpener of screw tap & drill, one machine with two function, easy to use, economical price, with no skill requirement to grind.
With Taiwan diamond grinding wheel, long service life.
Theoretical topics:
Definition and characteristics of a combinatory logic network
The BCD code
DEC/BCD and BCD/DEC code converters
Multiplexer
De multiplexer
Parity logic circuits
Encoders
Decoders
Nine bit 74180 parity generator/detector
A/D converters
Staircase A/D converter
Unipolar codes
Adders
Half adder
Definition and classification of shift registers
Applications
Fault simulation
Operation principle
4 bit bi directional shift registers
Bipolar codes
ADC converter with simple slope
ADC converter with double slope
ADC converter of parallel or flash type
D/A converter with R 2R network
D/A converter with weighed resistances
4 bit synchronous binary counter
4 bit asynchronous binary counter
Synchronous decimal counter
Up/down synchronous counters
Asynchronous decimal counter.
Electronic controller with temperature sensor and setting of the reference variable
Quick-release couplings for connection to hot water supply and ventilation system
Temperature control of a ventilation system
3-way mixing valve dn 20
3 thermometers and 1 temperature sensor with display
Circulating pump.
The module is complete with two single pole switches to operate very easily on it showing the interfacing possibilities with a traditional domestic plant. The Push Button Interface is a binary input and output device with four channels; each of them may be used either as an input for potential free switch push button contacts or as an output for control of a light emitting diode (LED).
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