Consequently, they cause a fast regeneration of the bony and cutaneous tissues and considerably increase the immune defenses of the body. Low frequency and low intensity magnetic fields and high frequency electromagnetic fields, act on the whole body through an effect of substitution or activation of the missing electrical currents, where the magnetic component is almost equal to the electrical component.
Circuit blocks:
Typical circuit of a Magnetotherapy
Main functions of the Magnetotherapy.
Theoretical topics:
The Magnetotherapy
Equipment for Magnetotherapy
Outline of electromagnetism
The electromagnetism in the medical practice.
The trainer can be used to demonstrate the principal aspects of solar thermal domestic water heating in a system with components used in real world applications. The heat then gets into the hot water circuit via a heat exchanger. Radiant energy is converted into heat in a commercially available flat collector and transferred to a heat transfer fluid in the solar circuit.
Learning Objectives/Experiments:
Determining the collector efficiency
Relationship between temperature difference and collector efficiency
Determining the net power
Familiarization with the functions of the flat collector and the solar circuit
Relationship between flow and net power.
The board enables the encoder to update the buffer and the latter can be read and cleared from the Personal Computer. A special software program running in the MS-Windows environment enables the students to perform the tests through the Personal Computer. Interfacing with the PC is via a board fitted with a digital buffer containing the angle position of the encoder. The unit includes all the measuring instruments necessary for the execution of the tests and numerous measuring points to check the most important signals with the aid of external instruments. Study Unit On DC Motor Position Control With Incremental Encoder makes it possible to study the position control techniques for a DC motor by means of an incremental encoder and a Personal Computer.
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Adsorber, Cation Exchanger, Mixed Bed Ion Exchanger
Separate Supply Unit With Tanks For Raw Water And Treated Water
Raw Water Tank With Possibility Of Aeration
Gravel Filter And Sand Filter With Differential Pressure Measurement
Flow Rate Measurement Of Raw Water
Measurement of conductivity and temperature after each treatment stage
3 Unit Operations In Water Treatment: Depth Filtration, Adsorption, Ion Exchange
Gravel Filter, Sand Filter, Aluminium Oxide Adsorber, Activated Carbon.
Retaining the flexible concept of the whole range, it can be plumbed into many of the flow control loops, and provides a good illustration of pneumatic valve technology. This is a pneumatic control valve, plus associated components, for use with the system.
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The first shafts has a cable drum for weight hanger. The apparatus has a transparent cover with interlocks for safety protection. The unit is steel frame with adjustable footings. The second shaft has an interchangeable inertia mass. A speed sensor monitors the mass speed. A motor dynamometer measures the gear system input power. This motor dynamometer drives the first shaft via an electric clutch. Speed is controlled by an inverter. The Comprehensive Geared System is used for studying the acceleration of a geared system as well as geared system efficiency under different gear ratios. For a study of acceleration of the geared system, a weight hanger provides torque on the cable drum and speed sensor can measure inertia mass velocity and acceleration. The Comprehensive Geared System consists of three shafts, two stage spur gear unit with two fixed gear and two sliding gear sets. All shafts rest on ball bearings on a steel frame. A mechanical brake dynamometer is attached to the third shaft for measurement of the gear system output power.
Experiments:
Input power, output power, and efficiency.
Effect of speed and load on efficiency.
Inertia of a mass and of a geared system.
It is very suitable for the introduction and study of photoelasticity: optical elements, isochromatic, isoclinic, band order, band factor, edge tensionsing, and for strain and stress analysis and measurement with strain gauges.
Unit for photoelasticity practices, illustrating the subjects of the Photoelasticity theory, the Elasticity theory, Strength of Materials, and Structure theory.
Using this unit photoelastic experiments and practices of transparent test specimens (models) may be performed.
With the aid of the system it is possible to analyze and process the captured data during test experiments, making measurements with strain gauges.
These specimens show a full color and high contrast results and are also made of a special very hard material that avoids breaking during daily use.
The experimental beam is in two parts, joined by a pair of low friction ball bearings. An underslung spring balance provides a resisting moment and measures the section bending moment.
Demonstration of the action of moment of resistance in a beam; measurement of bending moment at a section of a loaded beam; verify equilibrium of forces and moments.
The load hangers mountable in virtually any position along the beam.
An Instruction manual for student and lecturer provided
To be a bench mounted apparatus consisting of an 'experimental beam', 3 weight hangers, 2 supports and a spring balance
Set of calibrated weights and tools supplied.
Features:
Compact, open-circuit suction design
Wide variety of experiments in aerodynamics
High levels of safety
Controls and instrumentation conveniently mount on a separate, free standing frame
Saves time and money compared to full-scale wind-tunnels or airborne laboratories
Operates at meaningful Reynolds numbers
Comprehensive selection of optional instrumentation, models and ancillaries.
The experiment hardware fits onto a Structures Test Frame. Students attach one of the structures in front of the hardware module, directly onto the test frame. They then apply loads to the structure using masses on hangers. Included are four different structures.
The digital deflection indicators are on a magnetic base so students can move them to anywhere on the backboard. Two digital deflection indicators, set at 90 degrees to each other on the backboard, contact the structure and so measure horizontal and vertical deflection.
Deflection Of Frames Computer InterfaceThe Deflection Of Frames Computer Interface set has the same accessories as except Moment Support is replaced by Moment Load Cell Horizontal Force Support is replaced by Horizontal Force Load Cell Dial Indicator is replaced by Digital Indicator.
Software is included.
The apparatus shows precisely how Castor Camber King Pin Inclination are set up and how centre point steering is achieved. A wheel and means of altering the offset are included so that everything affecting centre point steering can be varied.
A hand driven rotating turntable simulates a rolling road, and may be turned at a slow enough speed to study wheel stability under running conditions.
Students often experience difficulty in understanding the principles of front wheel set-up on road vehicles, since the geometry involves angles in three dimensions. Vernier scales measure the Castor Angles And King Pin Inclination, while toe in and camber angles are measured from a longitudinal and vertical datum in the way in which they would be determined on a real vehicle.
Experimental Capabilities:
To demonstrate the effect of wheel offset
To observe the dynamic stability of the wheel under running conditions
To show how castor, camber and king pin inclination are set up
To show how the steering linkage is related to toe-in.
All electrical components are industry standard components and the system circuit diagram is printed on the front panel. Test sockets are inserted to enable measuring instruments to be connected for fault finding. It includes 30 fault insertion switches.
An Industrial Air Conditioning Controls Simulator for studying the function of the electrical components commonly used in air conditioning equipment. It also allows students to become familiar with fault finding and diagnosis.
The has been designed and manufactured to incorporate all current safety standards.
The shows the electrical circuit for an air conditioning system with simulated winter (heating) and summer (cooling) operation. The compressor, fan and heater are automatically simulated in the equipment.
Hydraulic feed is obtained through an adjustable height reservoir at constant hydraulic head. Pressure losses are measured by means of two U manometers, one water type (800 mm) and the other mercury type (400mm). The Apparatus For The Determination Of Pressure Losses In Pipes has been designed to determine the pressure loss in a pipe in which water is made to flow.
Experiments:
Measurement of pressure loss in a pipe as a function of flow-rate.
Change from lamnar to turbulent flow.
Verification of Reynolds number.
Air enters the test section through a carefully designed contraction followed by an aluminum honeycomb flow straightener designed to ensure that the flow is steady in both magnitude and direction and has a flat transverse velocity profile. The Sub Sonic Open Circuit Wind Tunnel is simple and safe in operation. It is supplied as a complete self-contained facility mounted on castors for ease of movement. Main equipment comprises the tunnel with a three-component balance system (lift, drag and pitching moment) and an air speed indicator. One number of floor mount 3 component balance for lift force, drag force and pitching moment measurement is installed in the test section. A low angle diffuser at the outlet end contributes to flow stability in the test section. An axial flow fan is located at the outlet of the diffuser section.
Forces and moment data are digitally shown on LCD graphic display screen and are able to transfer to computer.
Adjustment of pitch angle of models can be made with the tunnel in operation.
Lift force: 0 to 100 N, sensitivity ±0.01 N
24 bit analogue to digital conversion of 3 strain gauge load cells for greater accuracy at low forces.
The accuracy of the tunnel and its instrumentation make it suitable for undergraduate and simple research work.
Drag Force: 0 to 50 N, sensitivity ±0.01 N
Pitching Moment: 0 to 2.4 Nm, sensitivity ±0.001 Nm.
Electronic Climate Control AC Trainer is an automotive air conditioning program designed to offer hands on air conditioning systems for students. The trainer consist of an electronic climate control air conditioning unit including: Compressor, blower, fan, evaporator condenser, accumulator, pressure switch and related parts mounted on an industrial duty mobile cart. The components are based on an AC unit, complete with electronic controls, and comes precharged with refrigerant. Included are a set of charging hoses and manifold gauges and battery cable.
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The simulator consists of a panel operating by PC with mimic diagram for the clear positioning of the components. The various zones of the mimic diagram are presented with different colours and shades to emphasize the peculiar characteristics of the system. This simulator is an educational system designed in vertical frame, bench-top, so the students have the capability to watch the theoretical and practical study of the automotive systems. The mimic diagram is fitted with light indicators so as to enable the observation of the control. It includes colour mimic diagram that clearly shows the structure of the system and allows the location of components on it.
The operational conditions are entered by the students. The display of the information available at the PC monitor allows the continuous monitoring of the educational system. The insertion of faults is carried out by the PC.
The subsystems that form the hybrid solution and that are analyzed by means of the simulator and shown on the synoptical panel are the following: Gasoline Unit, including:
Gasoline Engine, with a bank of 4 cylinders and multipoint sequential injection
i-VTEC: Intelligent Variable-valve Timing and Electronic-lift Control
Engine ECU (electronic control unit for managing the thermal motor)
i-DSI: Intelligent Double Sequential Ignition.
The Rotating Fatigue Machine Apparatus is mounted on a heavy base plate and is designed to overhang the bench. Specially machined necked test specimens are provided. This Rotating Fatigue Machine Apparatus has been designed to introduce students to the effects of fatigue. The loading system cancels its own self-weight enabling any desired value of bending stress to be applied. Loads are applied to the test specimen using a load hanger and a set of calibrated weights. When failure occurs, a micro switch stops the motor and the cycles to failure are registered on a revolution counter. A motor rotates a specimen through a gear and pulley arrangement which can be adjusted. During the rotation the specimen is subject to sinusoidal variation of bending stress. A safety guard shields all rotating parts.
Experimental Capabilities:
Introducing students to S-N curvesVarying materials on fatigue limits
Specimen geometry
To make an introductory study of fatigue using a Wohler rotating fatigue apparatus, including the time to failure caused by various stress levels and materials.
Intended use:
Micropipette tips for use with standard Micropipettes used for pipetting small amounts of liquid in the laboratory. Intended for molecular medical laboratory, PCR work.
Material: Cardboard.
Sturdy base provides optimal stability.
Self-supporting vertical rack for drying DBS cards.
Provides horizontal position for 10 cards.
Used to air dry the blood spot samples collected for early infant diagnosis of HIV.
Single use.
