Universal Bench Mounted Frame
The frame is designed to accommodate two items of ADS apparatus, allowing adequate space for students to work on each piece of equipment simultaneously. However it is possible to mount three pieces, in the case of the simple transmission system.
The Sanderson Universal Bench Mounted Frame provides a very sensible alternative to to wall mounting, particularly since many new buildings are predominantly glass, with very flimsy dividing walls.
By mounting the apparatus on the frame, experiments can be transported between rooms to any convenient location.
Drum Brake Apparatus
The apparatus is suitable for use in the laboratory and may be used by the Students to carry out simple experiments to investigate the relationship between actuating forces and the braking torques and for the determination of the co-efficient of friction between the brake lining and the drum.
It provides a means of demonstrating the difference in braking torque between leading (Primary) and trailing (Secondary) shoe braking systems and the effect on the braking systems and the effect on the braking torque of the various combinations of leading and trailing shoes. This apparatus has been developed specifically for Motor Vehicle Mechanics and Motor Vehicle Technicians Courses. When the two shoes are linked together, the self energising action can be demonstrated.
Automated Bioethanol Pilot Plant
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The Refrigeration And Conditioning has been designed for both theoretical and practical learning of refrigeration technics. The unit has been designed for operation with CFC free Freon as primary and unfreezable mixture as secondaryrefrigerant. On the front panel, a synoptic diagram reproduces the plant clearly showing each component and the measurement pointsprovided in the circuit. The Refrigeration And Conditioning unit is self-sufficient and provided with all the instruments which are necessary to allow a wide experimentation.
The Refrigeration And Conditioning unit is available in two versions:
Refrigeration Study Unit with Heat Pump.
Refrigeration Study Unit.
Consisting ofa steel clutch disc with friction lining which is hydraulically pressed on tothe impeller
Function ofthe impeller and the turbine
Function ofthe lockup clutch
Function ofthe stator with functioning free wheeling.
PIC Innovative Experiment Development Kit is an integrated PIC design and developing system which contains experimental instrument, programmer, simulation interface, ICSP download cable it is equipped with control CPU and programming software, which can support 90% PIC experiments and development.
Main Features:
Series of experiments PIC chip socket : Including 8PIN, 14PIN, 18PIN, 20PIN, 28PIN, 40PIN, PIC10 series of special socket.
DS1302 clock : Comes with a memory cell (the default RB0, RB4, RB5 mouth, by switching off the micro-controller can be extended to connect to any port after the default port).
RS232 serial communication: Can communicate with SCM and computer;
24 independent LED: Can be connected to the micro-controller RA, RB, RC any IO port to indicate the output high and low level.
8 independent keys: Easy for input experiment data
2-way A / D converter input
Simulation debugging connection interface: Can be directly connected ICD1/ICD2/ MCD1/ MCD2 on-board chips and resources for online simulation.
IIC communication : Can use hardware or software IIC IIC directly read and write 24CXX experimental chips.
Standard model N for normal concrete casting. Impact energy 2,207 joule
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Features:
Special steel adjustable.
4-sets standard rollers.
Heavy and solid cast iron construction.
These substances, named active principles, of different dimensions and molecular weights, become extremely effective because they act inside the skin tissues at higher concentrations. The Ionophoresis is a technique that allows the substances in ionic form to penetrate from the surface of the skin to the deeper layers through a current.
Circuit blocks of Ionophoresis
Typical circuit that is used in the Ionophoresis
Main therapeutic effects.
In radiation the heat transfer takes place via electromagnetic waves. Unlike heat conduction and convection, heat radiation can also propagate in a vacuum. Heat radiation is one of the three basic forms of heat transfer. Heat radiation is not bound to a material.
Features:
Effect of different surfaces on heat transfer by radiation.
A special software program operating in MS-Windows environment enable to perform the execution of tests through a Personal Computer. The Temperature Transducers Study Module allows the calibration of instruments connected to temperature transducers, such asthermo couples and thermo resistances, and it demonstrates experimentally the concept of measure uncertainty. 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.
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Air Heating With Controlled Heater
Digital Balance For Measuring The Change Of Weight During Drying
Drier For Investigating Convection Drying Of Solids
Adjustment Of Air Velocity Via Speed Of Fan
1 Combined Sensor For Measurement Of Humidity And Temperature Before And After The Solid Sample
Drying On 4 Corrosion Resistant Plates In A Drying Channel With An Air Flow
Digital stopwatch, battery operated
1 Air Velocity Sensor.
The Essentials of Process Control (EPC) range of products takes students through the fundamentals and principles of process control and progresses to give them a thorough grounding in the control of physical processes. Four independent process units demonstrate level, flow, temperature and pressure as the controlled variable.
The effect of making changes to the system or to the controller configuration can be quickly investigated by applying repeatable disturbances or step changes to the process. The concepts of closed loop control, including on/off control, proportional control, proportional/integral and proportional/integral/derivative (PID) control can be explored and demonstrated. Some units also cover both time proportioning and analogue control of the same parameter. Comparison of the responses obtained with different control settings clearly demonstrates the need for correct matching of the controller to the system characteristics. Each process is supplied complete with software that allows it to be controlled using a Windows PC via a USB connection.
The plc has the control algorithms implemented in ladder logic and so are fully accessible to the user. To demonstrate industrial control systems, two further controlling devices are available, a full function commercial PID controller with autotune, and a programmable logic controller (PLC). This is demonstrated by a sensor calibration apparatus designed specifically to demonstrate this subject. Another fundamental aspect of process control is an understanding of sensors and how they are calibrated.
Features:
Open Loop and Closed loop processes
Time proportioning control
Onset of instability
Manual loop tuning
On/off control (Fixed Dead Band)
P, PI and PID control
Underdamping and overdamping
Effect of Sample Time and Cycle Time
Sensor Calibration
Effect of filtering on sensor outputs
Commercial PID controllers
Ladder Logic controllers
Sensor electrical characteristics
Autotuning.
The Simple Geared System consists four parallel shafts with fixed and sliding gears and supported by self aligned ball bearings on a base frame. The gear system is attached to a wall supported on two legs for weight hanger travel. By timing the fall of the weight hanger, the acceleration of the system can be calculated. The Simple Geared System is for studying the acceleration of a gear system under different gear ratios. Each pair of adjacent shafts has two transmission ratio, providing 8 different gear ratios between the first and the last shaft. A chord wound around a drum and the weight hanger provides a means of applying a torque. Inertia mass with torque drum is attached to each shaft. A sprocket and lock pin, and a winding handle are provided for raising the weights. All gears are enclosed in a casing with a transparent cover for safety.
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The Unit Includes:
The strain gauges are inside a transparent cover that protects them and make them clearly visible for the visualization of the process.
Anodized aluminum frame.
Three strain gauge test specimens (bars), each with strain gauge measuring points in full bridge circuit:
Tension test bar:
Material: stainless steel.
Length: 50mm.
Cross-section: 2x10mm.
Torsion Test Bar:
Material: stainless steel.
Length: 500mm.
Diameter: 10mm.
Bending test bar:
Material: stainless steel.
Length: 400mm.
Cross-section: 4x25mm.
Strain gauge measuring point: full bridge, 350.
It includes a 1N weight holder and a 5N weight holder, and an adjustable rider.
Set Of Weights:
10 x 0.5N.
1 x 5N.
1 x 20N.
2 x 10N.
Console:
Digital display for the strain gauge.
Metallic box.
Strain gauge connector.
Amplifier:
Zero balancing adjustment.
Measuring range: +/-2mV/V.
Subsonic Wind Tunnel Starter Set
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The apparatus consists of two columns attached to the base frame. One column has a top support for bending specimen, and a clamp for torsion specimen. The Torsion And Bending apparatus is used for torsion and bending tests on different materials. Torsion And Bending is to be used with Universal Base Frame or Universal Structural Frame. For torsion test, one end of the specimen is clamped to the column, and the other end is clamped to the pulley. A lever arm is attached to the specimen at any length from the first column. The other column also has a top support for bending specimen with a pulley freely rotes in the column. Angle of twist is measured by a dial gauge for the lever movement. Torque is measured by the load and the pulley diameter. For bending test, the specimen is placed on or clamped to the supports on top of the columns. Load is applied to the specimen and deflection is measured by a dial gauge.
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Winch Apparatus pulley has a high strength cord wrapped around its periphery and terminates in a load hanger. The substantial wall bracket is to be mounted to a sturdy vertical support. A horizontal shaft running through the heart of the unit has an 'EFFORT' pulley attached to its end. This industrial Winch Apparatus has been adapted for experimental work.
The winch has a maximum working load of 300 kg and is equipped with a safety pawl and ratchet.
The student applies a set of calibrated weights to the 'LOAD' hanger and adds appropriate calibrated weights to the 'EFFORT' hanger to raise 'LOAD'.
This cord again terminates with a load hanger. Winch Apparatus cord and hanger is termed the 'LOAD'. At the centre of the winch is a drum that also has a high strength cord wrapped around its periphery.
Experimental Capabilities:
To study the behaviour of a real Winch, especially noting the characteristics of the machine with increasing load
To determine the efficiency of the Winch
To examine the safety features of the Winch
To estimate the velocity ratio.
A set of handheld pressure gauges, a thermometer and a pen type thermohygrometer are used to take measurements at different points in the refrigeration circuit.
A Room Air Dehumidifier Training Bench for studying the operation of a room air dehumidifier and air psychrometry.
Students calculate Heat Balances and the Ideal Energy Efficiency Ratio and study system behaviour with variation of humidistat set-point and air flow rate.
The has been designed and manufactured to incorporate all current safety standards.
The equipment consists of a bench-top training unit with a refrigeration circuit including a hermetic compressor, evaporator, condenser, liquid expansion capillary tube and hygrostat.
Torque measurement for the dynamometer is by load cell, whilst speed measurement uses a magnetic type pick up. Pump suction and delivery heads are monitored by pressure transducers and the flowrate in the circuit can be accurately determined using the built in flow meter. The testing of such a wide range of pumps on a single test unit is made possible by the provision of quick release hose and drive couplings together with quick release pump fixing clamps, enabling changeover to be made easily and efficiently. All data is logged and displayed on the P.C. that is supplied with the unit. Data can be exported to a spreadsheet for processing.
A positive displacement Gear Pump is supplied as standard with the following pumps available as optional extras:
A positive displacement Vane Pump 40 lpm at 1500 rpm
A rotodynamic Channel Impeller Pump 26 lpm at 3000 rpm
A rotodynamic Centrifugal Pump - duty point of 120 1pm and 0.5 bar at 3000 rpm (max. flow at zero head 140 lpm, max head at zero flow 1.1 bar at 3000 rpm). A rotodynamic Axial Pump - maximum flow 50-60 1pm at 0.2 bar at 10000 rpm. (max head at zero flow 0.5-1 bar with severe cavitation), impeller diameter 38 mm.
A positive displacement Piston Pump - stroke 19.5 mm, bore 20 mm, flow 19 1pm at 1040 rpm, maximum pressure head 67 bar, limited by relief valve to 5 bar
Experimental Capability:
Determination of volumetric and total efficiency
Variation of pump capacity with speed
Head / flow rate plots at various constant speeds
Measurement of brake power input
Cavitation
Specific speed analysis.
The engine stand provides a stable work bench for major engine service suitable for use by schools, professional mechanics and engine re-builder. Engine Repair Program provides hands on training for those who wish to specilize in engine repair. The engine stand features a rugged tubular frame which supports up to 1,250lbs Include engine, stand, and tools for overhaul with curriculm. The stand has 250 degree rotation heads which lock in any position, a 23" handle to allow easy rotation to the engine and 3" diameter steel wheels to provide smooth maneuvering.
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