Workshop Milling Machine Parts
....Wood Lathe Machine With Leg
....Cold Box for the transpiration of Vaccine Sample
....School Meteorological Stationary
....Aquarium with Filter and Air Pump
....Field Computer Hardware Component
....Transmitter and GPS Antennas
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Psychiatric Bed Mattress
....Servo Fundamental Kits
....Filtration Unit with Plate and Frame
....Laboratory Constant-Temperature Drying Oven
....Beam Balance Digital
....Cam Mechanisms play an important role in the conversion of rotary motion into oscillatory motion. This application is highly dynamic: valves must be opened and closed in very quick succession. The contact between the valve and a cam must not be lost, otherwise it would result in uncontrolled oscillations, valve float and possible damage to the engine. The most common application of cam mechanisms is the activation of valves in engines.
Features:
Influence of spring stiffness and mass on the dynamic behaviour
Record elevation curves of cam mechanisms
Four different cam members, two different engaging members
Learning Objectives And Experiments:
Determine the limit speed and compare with theory
Influence of moving mass on the motion of cam member/plunger
Influence of return-spring stiffness and preload on the motion of cam member/plunger
Elevation curves in non-matching engaging member
Elevation curve in sprung-engaging member
Comparison of elevation curves with theory
Comparison of the elevation curves of different cam-member shapes.
To determine metacentric height of floating body and height variation with tilt angle. Tilt angle indicated by plumb bob on attached scale. Rectangular pontoon; centre of gravity can be moved side way by moving horizontal jockey weight, and vertically via adjustable vertical weight on mast.
....A simple and robust system for the measurement and recording of water wave profiles, which uses the principle of measuring the electrical conductivity between two parallel wires. Each probe consists of a pair of stainless steel wires which dip into the water waves. The electrical conductivity between them is measured, and is linearly related to their depth of immersion hence to wave height. The method is free of meniscus and `wetting effects.
The system is available in 1, 2 or 3 channel form and can display data by high speed recorder or input to a data logger. Alternative lengths of probe are 300mm or 500mm.
The probe consists of two 1.5mm diameter stainless steel wires spaced 12.5mm apart and 300mm long or 500mm long as required. Each probe is connected to its own wave monitor module in the electronic console by a twin core flexible cable 10m long. The distance between the console and probe may be increased up to 100m using commonly available low current cables.
Energization is conducted by means of an audio frequency drive signal which avoids all polarization effects at the wire interface. The signal is balanced relative to earth, to render the system immune to common mode voltages between the water and instrument earth. The frequency can be altered to permit two or more sensors to operate in close proximity without mutual interference.
The power supply module and appropriate number of wave monitor modules are mounted in a console, finished in matte textured blue paint and fitted with four rubber feet and carrying handle.
The result is a system giving high dynamic accuracy over a wide range of wave heights and frequencies.
The Electrical Wiring Learning System is an invaluable industrial wiring technician training system for careers like electricians and industrial maintenance technicians that wire control panels and operator panels on manufacturing machines. The Electrical Wiring Learning System includes real-world components such as a 3-phase motor, push buttons, switches, valves, and a 24VDC power supply all mounted on a mobile workstation. Electrical Wiring Learning System learners to study and practice electrical wiring skills like: installing control wiring in an electrical panel; installing wiring into limit switches, solenoids, and pressure switches; and understanding the importance of correct wire size, material, and insulation. This combination of industrial components and comprehensive curriculum will reinforce electrical wiring concepts and skills and build up a learner's confidence and competence. This learning system can also be used to form a strong foundation toward attaining numerous industrial maintenance technician certifications. Learners will use these components to study areas like electrical control system wiring, pneumatic control circuit wiring, conductors, disconnects, and over current protection.
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