The lever arm Creep and Stress Rupture machines are an economical alternative to traditional electro-mechanical or hydraulically loading universal testing machines which have higher initial purchase prices and greater long term operating costs. A variety of temperature rated test fixtures and extension measurement device for the measurement of elongation on creep test applications are also available. This model may be configured for either room temperature or elevated temperature operation.
Through the mechanical advantage of the lever arm loading system, constant loads may be maintained with a high degree of accuracy for long durations, using dead weights, without the continuous operation and dependency of a mechanically powered drive.
The lever arm type machine has been specifically designed for long-time Creep and Stress Rupture test applications that involve maintaining constant loads for extended periods of time.
Numerous high temperature pull rods, specimen holders, furnace systems and extensometers available for creep and stress Relaxation applications. Many of which are also adaptable to hot tensile testing applications on universal testing machines. Both room temperature and elevated temperature systems are available
Motorized draw-head assembly automatically compensates for specimen elongation and keeps loading bar with excellent load accuracy of +/- 0.5% guaranteed.
Furnace and chambers available with temperature ranges from 200C to 1100Cin common air environments.
It adopts the leading high-performance Controller, which is usually equipped on high-end material testing machines. Our product features a high-stiffness, stable structure. The mechanical components collaborate with the pioneered modular Test Live computer testing software to ensure the stability, precision and reliability of the whole system. It comprises a large-capacity loading unit that fulfills all the requirements in static load anchoring performance tests.
The microchip controlled electro hydraulic servo static load anchor testing machines is a type of all-closed-loop servo-controlled static load testing machine domestically pioneered product exclusively developed and manufactured by our teams, representing the latest technologies in the field of static load testing machine. Closed-loop control Prestressed steel stranded wire Preset multiple loading speed This product is mainly applied to inspect the static load anchoring performance of pre-stress steel strand anchors, which is a must-have testing instrument for pre-stress engineering projects.
Features:
Domestically pioneered process-oriented design of testing control. Provides users with intuitive testing control procedures and a wide range of instruction types. Also supports dynamic instruction parameter assignment.
Servo-controlled loading. Controllable pre stress. Load is applied to specimen uniformly.
Dynamic display of load, displacement, time and real-time testing curve on the screen.
Closed loop control of channels such as load, displacement, etc. Smooth switching in between.
Capable of loading at constant speeds of various levels.
Capable of automatic loading or holding by loading program settings.
Engineers may set up testing projects then operators may employ the projects for testing, greatly reduced the difficulty of the operations and the requirement in the skills and trainings of the operator.
Support for holding at constant load or constant displacement.
Software online notification of current working status and operating procedures.
Measurement and control system chooses SMT components, produced by automatic mounted system production, quality is stable, long-term reliable operation. he machine uses high precision load sensors, high resolution several mining system in data collection, can make the load, deformation and displacement quantity, time and data processing and display, as well as load, deformation and displacement automatic high speed closed-loop PID controlled. Test software running on windows platform, the domestic initiative of the test control routing design, high grade 3 operation test data processing model, automatic save test data, can also be tested after suspend of sudden power off, the test conditions and the test results can be automatic inventory, dynamic display the test data and the test curve, can be printed.
This slow strain rate (SSRT) constant corrosion (SCC) testing machine is mainly used for inspection, research of metal material static lasting tensile, creep, stress corrosion and the mechanical property test, etc can be used in NaOH, NO3, H2S, CL- solution, methanol, N2O4, NH3, wet air and water, and other media environment of metal stress corrosion damage characteristic test.
Features:
Dynamic display of load, displacement, deformation and real-time testing curve on the screen.
Closed loop control of channels such as load, displacement, deformation, etc. Smooth switching in between.
Event data can be saved, test can continue to be interrupted when the power supply test.
The machine Supports more than 20 days of continuous testing.
Four specimen can be tensile test at one time.
Capable of statistical operations on testing data (average, standard deviation, coefficient of variance).
Automatic requesting for testing result data, also capable of launching an advanced analysis to inspect the data.
Integrated non-contact transducer detects reciprocating bend times, avoiding the abrasion caused by contact transducers. This product features the second generation of structural design, eliminating dead locks in the first generation when performing reciprocating movement. Remote communication ports are installed to make it easier for remote controlling operation on a computer. The new generation adopts a reciprocating movement structure, eliminating the possibility of dead locks completely.
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Bends And Fittings Friction is to be used with Hydraulics Bench All bends and fittings are connected in series with pressure tappings on both sides of each device. The Bends And Fittings Friction equipment measures pressure drops at various flow rates when water flow through different pipe bends, and fittings. A water manometer with a vent valve and a hand air pump is connected to these tappings.
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The major advantage of AC three-phase over DC power systems isthat the electrical power is generated economically in large power stationsrelatively far from the end users, transported at high voltage over longdistances with very little power loss and finally made available to theconsumers providing them with two different levels of voltage depending on theapplication needs. Today, the public electric power is supplied almostexclusively using three-phase systems with frequency of 50 or 60 Hz, dependingon the country.
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This channel is mounted on to the manual jacking system, which provides positive step adjustment, via a hand wheel, withslope 0 to 10.The unit is supplied with manuals that describe each component of the system, installation and utilization procedures andgive many exercises. The channel sides are transparent in order that bed profile changes can be readily observed, and a section of one side is provided with graphical grid. The Sediment Transport Visualization Channel is designed to perform most of the experiments anddemonstrations usually undertaken in much larger laboratory flumes, but at much lower cost and without the need fortechnician back-up. The channel slope is adjusted by means of a screw jack to which isattached a slope indicator. Sand is placed along the channel bed, between the inlet tank and the over fall discharge weir. Water is circulated around the system at a selected flow rate.
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The unit consists of an industrial type centrifugal blower with a motor and an inverter, inlet and outlet ducts with flow straighteners, a damper, and measuring instruments. Centrifugal Blower Test Set a bench top unit for studying the centrifugal blower characteristics. Extra blades are provided for comparison study.
Experiments:
Blower input, output and efficiency.
Comparison of backward, radial, and forward blade impellers.
Inlet and discharge pressures vs blower speed.
Flow rate vs speed.
Mounts vertically and spans the test section of an Educational Wind Tunnel
Angular position is adjustable
Comes with ample tubing
24 flush-mounted pressure taps around its circumference
Outside diameter of 4 inches (10.16 cm).
The Steam Power Plant is specifically designed for training purposes in the field of power plant engineering with process control systems. The system operates very similarly to real large-scale plants due to the high degree of complexity.
The entire system is monitored, actuators regulated and controlled, measurements recorded and displayed via the process control system. Large process engineering systems, such as steam power plants, are managed with process control systems (PCS).
Features:
Plant monitored and controlled via touch screen control station
Complete laboratory-sized steam power plant
Process control system based on Ethernet and PLC.
This product helps students to understand the use of this engine withadditional exhaust nozzle control, on practical applications such as jetaircraft. A steel frame holds a gas generator, combustion chamber, oil and fueltanks, pumps, ancillaries and guards. Above these is an instrumentation andcontrol panel with schematic diagram. A self-contained, fully instrumented, educational singleshaft gas turbine with reheat. Powered by kerosene, the experimental abilitiesof this high-quality apparatus enable comprehensive practical investigationsinto the principles, and performance of single-shaft gas turbines with reheat. The clearly labelled control panel withmimic diagram includes the instrument displays, controls and warning lights. It then passes through a variable area propelling nozzle. The exhaust gases thendischarge to a suitable exhaust system. The combustion chamber gives excellentcombustion, low pressure loss and good flame stability over a wide range ofconditions. Air passes into an air box, through a calibrated nozzle into a compressor, theninto the combustion chamber. A pump transfers fuel from the fuel tank to spraythrough a special nozzle into the combustion chamber. A high-energy sparkignites the air and fuel mixture that flows to a radial flow turbine, then tothe reheat section. This increases the temperature and velocity of the gas. A secondhigh-energy spark in the reheat section ignites the reheat fuel. This creates asecondary burn using some of the remaining oxygen in the hot exhaust gasesleaving the turbine. A fuel flow control valve on the instrumentation and control panelregulates the turbine speed. This design reduces the possibility of over speed. A separate control adjusts the fuel flow to the reheat section.
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A stirrer motor is incorporated to agitate the liquid under test and is controlled by a pushbutton on the top panel of the control unit. Immediately behind the pushbutton are two motor drive outputs which connect to the test cup via the curved flexible drive - changeover being made simply by lifting the cable drive from one outlet and placing it in the other. The unit is also fitted with an integral, rechargeable LPG gas tank. Electrically heated flash point apparatus is designed to determine the flash point of petroleum products with flash points above 49ºC (120ºF) and in so doing conforms to the following standards: Method The apparatus consists essentially of a cast-iron stove with test cup, lid and shutter assembly mounted on a stainless steel encased control unit with the main power switch and heater controller located on the front panel. The stove is fitted with an easily replaceable base and band heaters, so arranged that all parts of the exterior surface are heated uniformly, while accelerated cooling, after flash point determination, is provided by an air inlet connection, which leads to the interior of the stainless steel baffle surrounding the heaters. Handles are provided for lifting the cup and lid, and a vertically located, cam locking device ensures safe and secure mounting of the lid and shutter assembly.
Features:
Two speed stirrer
Forced air cooling facility
Ambient to 370°C temperature range
Variable ramp rate
Supplied with sample cup, lid and shutter stand and instruction manual.
A gasoline Briggs and Stratton air cooled OHV engine, is offered as an engine option. Alternatively a diesel engine, the is offered as a separate alternative. The engine and dynamometer are carried on a solid steel baseplate resiliently mounted within a steel framework. Automotive 1 Engine Test Set is the smallest engine test in the ranges. It is a self-contained compact unit designed for easy installation and bench mounting. An automotive alternator is used as a dynamometer to load the engine and dissipate the power in a resistive load bank. The instrumentation and control panel is mounted on the front of the frame. Included within the engine framework are the fuel system, which incorporates a fuel tank and fuel solenoid valve, and the air induction system.
Features:
Self-contained, compact easily installed bench mounted unit.
Fully instrumented for air and fuel flow, exhaust temperature, speed and power.
Optional PV System
Electrical AC dynamometer and load bank.
Optional Single Cylinder Diesel Engine
Optional Data Acquisition System
Optional Single Cylinder Gasoline Engine.
The system is provided with our standard software plus National Instruments drivers should the client wish to develop the system further. The engine is modified at our factory to allow the fitting of the pressure transducer. The system uses a charge amplifier that conditions the cylinder pressure transducer signal at up to 30kHz. A standard Ethernet connection allows data streaming to a PC running the PV software for processing, displays.
Applications:
Engine parameters easily configured and displayed on screen.
Transducer parameters easily configured and displayed on screen.
User friendly, easy to configure and use.
Single pressure channel allowing data acquisition of in cylinder combustion pressure.
Selectable display of crank angle v cylinder pressure or classic PV diagram.
Output of acquired data in csv format allowing recorded data to be post processed in other software applications.
Data acquisition of engine speed/crankshaft index position.
Selectable display of crank angle v cylinder pressure or classic PV diagram.
The apparatus is an ideal solution for measuring gas leaks Engine casings and which can be easily integrated In the engine ventilation system. The device consists of a flow transducer, a Digital display module and cable Interconnection. The deterioration of the engine can be evaluated by several Methods, one of which is to measure the gas cylinder; Crankcase crankcase gas accumulation is A result of that loss, and provides an indication of the The wear of valve stems, valve guides, Piston rings and cylinder bores. A pulse train output is also provided. The module incorporates an alarm circuit which provides the Visual indication and closes the alarm contacts Without voltage when the gas flow exceeds a value Of the operator. The display module, which incorporates a linearization circuit, Shows the gas flow in liters / min on a display Digital output and provides an analog output voltage of 0- 2V or 0-10V. To allow the device to be Used on a wide range of engine applications, five Different flow sensor sizes are available.
Experimental Ability:
Research and development
Monitoring of engine conditions
End of line test
The unit consists of a storage tank, a pump, a turbine, a dynamometer, and measuring instruments. The adjustable guide vanes direct water to the runner. Compact Kaplan Turbine Test Set is a self contained bench top set for studying the Kaplan turbine characteristics under various flow rates and heads.
Experiments:
Power output vs speed for various heads and flow rates.
Torque vs speed at various heads and flow rates.
Efficiency vs speed for a given head and flow rate.
Racing characteristics.
Energy of solar origin stored in the battery can be converted into kinetic energy by the use of the electric motor and measured by the dynamometer and tachometer system. The characteristics of the photovoltaic cell array can be determined by the instrumentation provided. As shown in the illustration, the power element in the unit is a photovoltaic cell array comprising thirty-six silicon cells connected to a control unit incorporating a storage battery, and a switched loading system consisting of an electric motor and dynamometer and a bank of resistors. The photovoltaic cell material employed is highly efficient giving an energy conversion of around 10%, i.e. an output of the order of 100 watts per square meter in full sunshine. Provision is made for the use of recorders to indicate both the output of the solar cell array and the output of the storage battery. It is normally mounted out of doors at an angle to the horizontal, the angle being determined by the latitude of the location, alternatively a suitable lamp can be used.
Features:
Highly efficient energy conversion - 100 watts/metre2
Does not require complicated reflecting systems
Collects and stores solar power
Stored energy can be converted for use by electric motor
Waves reflect off the surfaces of the model and from sides of the tank. This can be a major limitation on towing tanks where the productively of the whole facility is determined by the settling time after a run has been completed. All tanks have resonant frequencies and often these lie within the working frequencies that are generated in the tank. A good beach will absorb much of the energy after is has passed the model but has little effect on cross-waves or models reflected from the model. Wave makers incorporate proven software techniques for wave generator control and can include software links to towing carriages to optimise test duration. Wave Technology is a rapidly advancing science new or modified products are continually being developed to meet unique experimental needs, including those associated with the offshore industrys deep-sea exploration research programmes. Active absorbing wavemakers dramatically increase the performance of a tank by prolonging the time that an experiment can run without the build up of spurious waves and also by decreasing the settling time between runs.
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The additional measuring sections Nos. 2, 3 and 4 are exchangeable against the standard measuring section so that the tunnel can be made suitable for a wide range of test work.
The main data of a Cavitation Tunnel with the standard measuring section are as follows:
Contraction ratio of the nozzle 5.96 : 1
Measuring section 60 cm x 60 cm
Cavitation number adjustable in a wide range down to below
Total length including stiffening girders, not including the length required for a propeller dynamometer and a wake rake 13.9m
Maximum velocity of the water in the measuring section 12m/s
Pressure regulation from relatively high vacuum to above atmospheric pressure measured at the pressure regulation container 1 bar Approx.
Total height from the floor at which the tunnel foundations are supported to the highest part of the cavitation tunnel, inclusive stiffening girders, not including some additional height for the separate pressure regulation container and not including the height required for setting in propeller * dynamometers or other test equipment 9.3m.
The apparatus has two transparent tanks, mounted one above the other. A variable-speed pump transfers water from the reservoir (in the base of the unit) into the upper tank. PLC Process gives students and engineers practical experience of the principles and application of programmable logic controllers (PLCs). The object is to connect and program an external, programmable logic controller to monitor and control the level and flow rate of water in a two-tank system. The pump control is on or off, but a manual control allows the user to set the speed. A float switch in the reservoir monitors the level of water. The water can drain down to the lower tank and then back into the reservoir. Solenoid valves may be individually opened or closed to control and redirect the movement of the water.
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