The unit allows to study the buckling of pieces of different lengths, ranging from 300 mm. to 625 mm, to which different support conditions can be applied:
Rigidly fixed end conditions.
Pin-joined end conditions.
One end pinned and the other fixed.
To measure the compression force exerted on the structure, there is a system composed of an elastic ring whose deformation is measured.
The compression force will be directly proportional to the deformation registered in a dial gauge.
To carry out the practical exercises correctly, it is very important to apply the force with an only axial component. For that purpose, the unit has a differential screw placed at one end, which allows the system compression.
The Torsion of Rods and Tubes is mounted onto a bearing shaft, which is rotated using a thumb wheel and fine worm/wheel gearing mechanism integral to the torsion head. The Torsion of Rods and Tubes comprises of a torsion head at one end and a fixed tailstock at the other, between which are held a variety of torsion specimens in three (3) jaw chucks.
The thumb wheel and gearing applies known torque to the torsion specimen, whilst an integral load cell records the torque force being applied. The signals from the load cell and angular position sensor is fed directly into the Interface. Fine rotational movement, in each direction, of each chuck allows accurate alignment of the Torsion of Rods and Tubes specimens. An angular position sensor is also mounted at the torsion head end to monitor the angular twist of the torsion specimens. Each torsion specimen has profiled ends to match the clamping pattern of the chucks.
Experimental Capabilities:
Comparison of the extended theory of torsion for a hollow square section member with experimental values
Verification of the classical theory of torsion in circular section rods and tubes
Comparison of a tube and a similar tube with a 1mm slit along the length
Shear modulus
Polar moment of inertia
Modulus of Rigidity, G.
The apparatus is elaborately equipped for a wide range of investigations into both linear and angular motion. This all metal system consists of a steel guided plane, 180 cm long, machined from a stiff girder section with a V groove and flat for guiding. Fletcher Trolley apparatus is manufactured to the well known sturdy design. The centre is slotted for the Rolling Disc experiment. Slope is controlled by an adjusting screw and measured on a scale. Two trolleys are provided, equipped with buffers and spear and plug for interlocking. Supplied complete with trolley masses, double set of slotted weights and hangers, balanced rolling disc and axle, rolling balls, 2 vibrating arms, packing block, paper rolls, ink and brushes. A pair of echelon pulleys is provided at either end and there are two bridges adjustable for position along the length of the plane.
Features:
Swinging arm available for angular momentum experiments
Accurate and repeatable results
Two trolley system
Weights and consumables included.
The small piston and tha brake strips are clearly shown. Disk Brake Cutway, floating type.
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Intended use:
Optically clear adhesive film to seal the samples into the wells of PCR microplate to reduce the possibility of cross-contamination between sample wells.
The Rad-G sensor is only compatible with the Rad-G device.
Prior to using this sensor the user should read and understand the Operator’s Manual for the Rad-G device and the Directions for Use included with the reusable sensor.
The reusable sensors are indicated for noninvasive spot-checking of functional oxygen saturation of arterial hemoglobin (SpO2) and pulse rate (measured by an SpO2 sensor) for use with adult, pediatric, and infant patients during both no motion and motion conditions, and for patients who are well or poorly perfused in hospitals, hospital-type facilities, mobile, and home environments.
Syringe, 3-pieces: barrel, plunger and gasket
Initial sterilisation method: Ethylene oxide gas or Gamma radiation.
Clear syringe barrel, precise graduation in ml for the volume dosage, permanent marking, easy readability
Centric or eccentric Luer tip
Capacity: 50ml or 60ml
Disposable
Sterile
Safe plunger backstop.
Measuring device equipped with light emitting diode (LED) technology and graphic LCD display. Portable photometer to determine quantity of iodine content in salt. Assembled and packed in a portable case. Delivered with accessories.
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Through the light can be turned on their own, through the cold wind can also be turned to the opposite direction, when the light of the black surface absorption of heat energy, white leaf release heat energy, you can promote the four leaf rotation. The total height of the product is 130mm, the width of the plastic base is 90mm, the diameter of the glass bulb is 80mm, and the product is all made of glass.
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The product consists of a reagent bottle, reactor, mixer, pH meter, water valve, filter tank, activated carbon tank. The total amount of wastewater for each treatment is 6L to 12L; the power supply is AC220V, 50HZ, DC, 12V, 500mA; reaction tank size: Phi 350 * 120mm; filter tank size: 320 * 250 * 105mm. The overall size of the product is about 375 x 375 * 550mm.
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It has functions as follows: stopwatch timing, time, calendar, week and alarm clock.
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The specifications are 10? 5.6A?333? 0.95 A?180Ω 2A 333Ω1.5 A. Sliding rheostat, corrosion protection, rust proof and robust, surface mesh protection can be achieved by transient high current.
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Type: Chamber Lid
For Use With (Equipment): Turbidimeter
Replacement for Measurement Chamber Lid of turbidimeters.
40 gsm non-skid shoe covers
Disposable
Spunbonded polypropylene (SBPP).
Elastic band for secure and comfortable fit.
Industrial Installation Trainer Electronic Engineering Lab
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Water Purifier DNA and RNAse Free Water
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They are grouped into individual assembly sequences. The base plate is covered with a transparent cover panel on which a graphical representation of the assembly structure is printed. The kit contains all the parts required to assemble a functional bending device. The parts are clearly laid out on a base plate. The surfaces of the finished parts have a gunmetal finish to prevent corrosion. Multiple trays are stackable, providing for space-saving storage. The kit is ideally deployed for student exercises during teaching, with two/three students able to work with each kit. The graphic symbolises standard and production parts, and also represents fixed and moving connections differently. The comprehensive and clearly structured instructional material is laid-out in line with modern principles and is of great help with lesson preparation. All parts are precision-manufactured on CNC machines and feature standard engineering tolerances and surface finishes.
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The heat extracted is transferred to the hot reservoir, together with heat generated by the electrical supply to the peltier device. This heat is removed by a water-cooled heat exchanger. The flow rates can be adjusted to provide a range of operating temperatures. By varying the electric power into the system, the behaviour of the system at different operating points and temperatures can be established. The thermo-electric Peltier device is positioned in a heat transfer path, between two copper blocks, extracts heat from one block (cold reservoir) and transfers it to the other block (hot reservoir). In order to measure the heat transfer rate, the cold reservoir is fitted with an electric heater.
Instrumentation is provided to measure the temperatures of the blocks, the electric power supplied to the Peltier device, the cooling water flow rate and the cooling water temperature rise.
The Peltier device can also be used to generate a small quantity of electric power when a temperature difference is applied. This effect can also be demonstrated. The heater power is measured , and so it is possible to establish a complete energy balance for the system.
