The Pin Jointed Frameworks Apparatus mount onto two end supports. One support has a pivoting arrangement whilst the other has pivoting and rolling arrangement. Each framework member has a strain gauge arrangement attached. The signal from the loading mechanism and strain gauges is fed directly into the Interface. The loads on the Pin Jointed Frameworks Apparatus are applied at known joints by using the screwjack loading mechanism supplied.
The Pin Jointed Frameworks Apparatus enables students to assemble two Pin-Jointed Frameworks (warren and basic roof truss) to measure the strains (hence stresses) and joint deflections. Each member of the framework can be easily interconnected with each other by use of simple joints that are designed to create a truly pin joint.
The unit also includes a vibrating arm to enable traces to be drawn on a paper strip positioned on the circumference of the flywheel. Energy of Flywheel apparatus is an extremely robust and versatile unit comprising of the main flywheel, the mass of which can be varied by adding and removing two rings and one disc, and mounted on a heavy duty stand suitable for mounting. The assembly, of overall dimensions 450 mm long by 400 mm wide by 360 mm high, is supplied complete with paper roll, bottle of ink, spare vibrator brush, ink feed brush and length of cord, but without masses and hanger. The fully assembled flywheel, which measures 300 mm in diameter and is 75 mm wide, is fitted with a special antifriction bearing.
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Durm Brake Cutway model is carefully sectioned for training purposes, professionally painted with different colours to better differentiate the various parts. The cylinder and shoes are clearly shown. Many parts have been chromium-plated and galvanized for a longer life.
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Intended use:
To transfer liquids in general clinical laboratory applications.
Handheld, portable, rechargeable battery powered pulse oximeter, for the noninvasive spot-checking or continuous monitoring of patient oxygen saturation (SpO2), pulse rate and respiratory rate.
Pulse Rate detection range: 25 - 240 bpm.
Pulse Rate resolution: 1 bpm.
Pulse Rate accuracy: within ± 3 bpm (no motion, low perfusion), ± 5 bpm (motion) for all patients (infants, children, adults).
Respiratory rate range: 4 to 70 rpm
Respiratory rate resolution: 1 rpm
Respiratory rate accuracy (no motion, adults/paediatrics (> 2 years)): within ± 3 rpm A(RMS), ± 1 rpm mean error
(Note: device is indicated for spot-checking or continuous monitoring of Respiration Rate from the photoplethysmogram (RRp) of adult and pediatric patients (> 2 years) during no motion conditions).
Measurement:
SpO2 and pulse rate monitor, with plethysmography waveform, for infants, children and adults.
SpO2 detection includes the range: 70 - 100 %.
SpO2 resolution: 1 %.
SpO2 accuracy (in the range at least 70 - 100%): ± 2% (no motion, low perfusion), ± 3% (motion) for all patients (infants, children, adults).
Display:
Data display refresh rate: every 1 s
Display with main parameters: %SpO2, pulse rate, respiratory rate, signal quality, status messages, battery state indication.
Casing:
Enclosure protection IP22.
Case and reusable probe suitable for cleaning and disinfection with hospital-grade cleaning products.
Overall device and probe weight < 300 g.
Electrical characteristics:
Operated by rechargeable, non-replaceable Li-ion battery power supply.
External AC battery charger, plug style and voltage as per local supply.
Charger certified to IEC 60601-1.
Protection against defibrillator discharges.
Suitable for operating by mains power and by battery.
Automatic switch between battery and mains powered modes.
The display shows which power source is in use.
Running time on battery only ≥ 12 hours (24h at lowest screen brightness and beep tone turned off).
Features:
Suitable for detection in low perfusion conditions.
Design enables use in demanding environments, e.g. shock, vibration.
Automatic correction for movement and ambient light artefacts.
Audible and visual alarms for low saturation and high/low pulse rate, thresholds settable by user.
Audible and visual alarms for sensor error or disconnected, system errors, low battery.
Alarm override and temporary silencing function.
Capable of working with, and supplied with, adult, paediatric and neonatal reusable probes.
Surgical dissecting scissors used for cutting tissue, threads and dressings.
Instrument that cuts by shearing: operating, dissecting scissors.
Material: Martensitic steel (quenched, magnetic steel).
Martensitic steel composition: 0.15-0.40 % carbon; 13-14 % chromium.
Reusable.
Curved, with blunt end blades.
Length: 14 cm.
Sterile enteral feeding/aspirating catheter for single use.
Single channel tube.
Open distal end with four side windows.
Tube with markings at 40, 50, 60 and 70cm from the distal end.
Proximal end with cup connector, conical tip, allowing the tube to be connected to devices such as feeding syringes (catheter tip) or suction pump system.
Material: Polyvinyl chloride (PVC)
Size selected: Diam. CH06, length approximately 125cm
Length expressed in cm.
Colour code/ external diameter: Visible on cup connector.
Sterile
Disposable
Initial sterilisation method: Ethylene oxide gas.
Kit indicates presence or absence of iodine (if the salt is fortified with potassium iodide). Iodised salt test kit, for determining presence or absence of iodine in salt fortified with potassium iodide (KI).
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Pan and "Goose neck" trap set for squatting plate 120cm x 80cm.
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Effective diameter 25mm, Newton ring imaging can be adjusted.
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The outer tube is made of ABS engineering plastic, the size of about 100 mm in diameter and 130mm; glass is made of tube diameter, with 60 * 70mm; the upper cover is made of transparent plastics processing, has inserted a stirring stick and a hole; a stirring rod with the diameter of 5mm organic glass rod production. The products are mainly composed of outer barrel, heat insulating sleeve, inner cylinder, cushion cover, upper cover, stirring rod and so on.
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The central body of model is the earth, the middle ring represents different positions of moon on the orbit, and the map uses ink-jet printing, only needs rotating demonstration rod gently, that the change of moon phase can be demonstrated clearly.
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It consists of support rod, single pulley, desk-side clamp, and small iron ring and nylon wire. It is used to prove that the standing pulley can’t save effort but can change direction; the movable pulley can save half of effort but can’t change direction of force. The height of support rod is adjustable.
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Sample cell for use with turbidimeters.
Includes lids
12 per pack.
Heavyweight fabric provides increased protection
Knit wrist prevents dirt and debris from entering the glove
Multi-purpose fabric gloves used for light protection in many general applications.
Clute cut.
Blended cotton/polyester fabric.
Digital Logic Trainer Electronic Engineering Lab
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Wireless Pressure Sensor
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