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.
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.
Vaccine carrier, Small, Short range
Vaccine storage capacity: 0.9 litres
With lid and shoulder strap.
Cold life at 43°C without openings: 20 hours
Supplied with 2 x 0.4L icepacks as a standard.
Weight fully loaded: 2.2 Kg
Volume category: 60L >60, Vaccine storage capacity: 120L
Refrigerant: R600a, 57 grams refrigerator and 47 freezer compartments.
Energy consumption, stable running (kWh/24 hours): 1.55
Equipment operating voltage and frequency: 110-240 Volt 50Hz / 60Hz,1ph.
Operating temperature: Min and Max rated ambient temperature: +5°C and +43°C
UIFPF- Grade A
PQS Prequalified Intermittent Mains Powered Combined Refrigerator and Water-Pack Freezer for storage of vaccines at +2 ?C to+8?C and freezing of water packs.
Vaccine storage capacity: 80.5 L
Volume category: >/=60, <120L
Solar radiation reference period of 3.5 kWh/m²/day and hot zone (+43°C) test temperatures.
Refrigerant: R600a, 60 grams
PQS prequalified Solar direct drive refrigerator with no battery for storage of vaccines at +2 ?C to+8?C in areas without any electricity, or where there is less than eight hours of reliable electricity over a typical day.
Operating temperature: Min and Max rated ambient temperature: +5 °C and +43°C
UIFPF: Grade A.
Remote Temperature Monitoring (RTM) system for remote monitoring of storage conditions at different levels of the vaccine cold chain: (a) with integrated audio-visual alarm (b) with data access, setup of alarm thresholds and setup of alarm recipients through internet accessible dashboard (c) with automatic transmission of data to a server (d) capable of alarm notifications via SMS, email and/or iOS & Android mobile applications (e) configurable to suit specific applications and scalable to allow for the later installation of additional temperature monitoring products and/or storage facilities.
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Material: PVC, glossy finish; Approximate thickness 0.19mm; able to survive rough treatment by the children. Inflating valve made of hard plastic, with two plastic loops for inserting rope/thread for hanging.
Topographical globe, inflatable (without the use of a pump): showing continents, oceans, rivers, mountains, deserts, forests, et cetera, but without emphasis on political boundaries (printed in dotted lines).
It has a handle containing batteries to power its light (a small built-in light bulb or fibreoptic light) for airway illumination, and a curved or straight blade of various designs and lengths that can be hinged/interchanged or integral. A hand-held device intended to be used by medical professionals to manipulate the tongue, preventing it from obstructing the oropharynx and enabling a clear view of the trachea for the insertion of an endotracheal (ET) tube prior to the delivery of inhalation anaesthesia and/or ventilation.
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Oxygen concentrators are not suitable to be used as an oxygen source to other medical equipment providing respiratory support, such as ventilators, CPAP devices, High Flow Nasal Oxygen, etc. A mains electricity powered device that concentrates oxygen from ambient air and delivers the concentrated oxygen in a controlled manner to a patient requiring oxygen therapy, up to 10 L/min.
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