Workshop Angle Grinder Maintenance
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Dual Bevel Glide Miter Saw
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Ultra-low Temperature Freezer
....-lab-1820396378.jpg "Global Positioning Systems (GPS)")
Global Positioning Systems (GPS)
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Submerged Arc Welding Machine
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Smart Phone + APP for Smartphone Monitoring
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Laboratory Upright Refrigerator, Low Temperature Range
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Wireless Vacuum Gauge and P/T Gauge Combination
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PC Application Trainer System
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In hydrodynamic bearings, the shaft and the bearing shell are separated from each other during operation by a supporting lubricating film. The position of the shaft in relation to the speed and the load is important for an analysis of the tribological process in the bearing shell of a journal bearing. The pressure in the lubricating film in hydrodynamic journal bearings is generated by the relative motion between bearing shell and shaft.
Features:
Pressure distribution in the journal bearing
Locus of the shaft under different loads and speeds
Frictional moment under different bearing clearances and loads.
Learning Objectives And Experiments:
Influence of speed, bearing clearance and bearing load on the displacement of the shaft
Influence of speed, bearing clearance, bearing load and lubricant on the frictional moment
Determine the coefficients of friction at various loads and speeds, compare with Stribeck curves
Locus of the shaft.
An insulated gold electrode terminates 0.1mm from the tip of the rotating blades and detects the change in electrical impedance as each blade passes. The sensing head consists of a 5-bladed propeller that runs in jewelled bearings. As there is no physical contact between the electrode and blade, the propeller can rotate freely and respond to low velocity of the surrounding fluid. The propeller is able to rotate freely within a protective shrouded cage.
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The PLC monitors the motors operation and correlates theparameters according to the developed software.
The PLCs are the control devices used in automation systemswith dedicated software so that they are capable of being programmed to performcorresponding control operations and they are widely used in industrial controland can operate at industry environment conditions.
The performance ofthe induction asynchronous motor can be tested in two different modes:
Fed by the inverter and PLC
Or fed by the inverter only.
The system uses a high-pressure piston-recirculation pump to circulate product through the filter module of choice. The speed of the recirculation pump can be adjusted to suit the particular filtration module and the product. The triple-piston design combined with high-pressure flexibles minimises pressure pulsation. The operator can use their own feed vessel or this can be specified. Accidental system over-pressure is avoided by a bursting disc downstream of the recirculation pump. The retentate back-pressure valve enables pressures up to 50 bar to be achieved.
Features:
Variable retentate flow rate in order to change filtration cross-flow velocity
Retentate electronic flowmeter measurement
Retentate and permeate back pressure valves
Capable of microfiltration, ultrafiltration, nanofiltration and revese osmosis operations
Maximum filtration pressure of 50 bar
Clean-in-place capability
Backpulsing option (suitable for certain modules)
Mass balance option for permeate flow rate measurement
All parameters are data logged
Pressure sensors on the retentate inlet and outlet of the filtration module and on the permeate line.
Strain gauges are used extensively in sensor systems to detect forces, moments and deformations. Three test specimens for tension, bending and torsion are each fitted with four strain gauge measuring points. The experimental unit provides a wide-ranging introduction to the fundamentals of measurement by strain gauges. The strain gauges are wired in the full bridge. The specimens are loaded incrementally allowing for the strain reading to be sequentially monitored. The specimens can be inserted quickly and precisely into the frame. The digital display also features a zero balancing function to allow for any preloading. The strain gauge measuring range is protected by a Plexiglas cover, which also makes it clearly visible for inspection purposes. The measurement amplifier supplies the bridge supply voltage, and displays the load-dependent "bridge detuning" digitally in voltage values.
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A versatile hydraulic engine test bed with comprehensive instrumentation. The equipment is fully compatible with Versatile Data Acquisition System. Using this enables accurate real-time data capture, monitoring and display, calculation and charting of all relevant parameters on a computer making tests quick and reliable. When used with one of optional single-cylinder engines, it safely and effectively enables study and demonstrations of the most important features of the engine. In addition, optional ancillaries are available to extend the range of study, demonstrations and investigations even further.
The main components of the test set are:
A bench-mounted instrumentation frame
A heavy fabricated portable bed
The bed sits on a trolley for portability. It includes a robust, precision-machined, trunnion - mounted hydraulic dynamo meter. A significant advantage of using a hydraulic dynamo meter is that no large electrical supplies are required as the engine power is dissipated into the water used to load the dynamo meter.
