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Electronics
RF Telemetry
Supertek RF telemetry system consists of a radio frequency transmitter and matching radio frequency receiver both operating at 433MHz. The system is designed for radio frequency transmission and reception. The radio frequency transmitter sends out a variable audio signal and the radio frequency receiver with a built-in loudspeaker receives the signal. The system enables the teachers to demonstrate a variety of wave phenomenon. The system also enables the properties of the radio communications to be investigated and compared with those of visible light and other wave motions such as audible sound and water waves etc. For the operation of the system, a 9-volt PP3 battery is required.
PH94020 -
Electronics
Ultrasonic Transmitter and Receiver Set
This apparatus consists of a self-contained transmitter and receiver operating in the 40 kHz region. The transmitted wave is modulated at a user-controlled variable frequency of about 2 kHz and this is detected by the receiver which amplifies the signal and drives a miniature integral loudspeaker. Both transmitter and receiver are contained in separate plastic enclosures measuring 175 x 100 x 40 mm which contain all the electronics and the 9 V batteries. The receiver has front panel 4mm sockets so that the output can be monitored on an oscilloscope for more quantitative measurements. The system is ideal for demonstrating sound waves above the hearing threshold and reflection properties associated with sonar etc.
A special feature is the second transducer on the transmitter which can be switched on when required to produce two coherent sources. By moving the receiver along a line parallel to the two sources interference patterns can be dramatically demonstrated simplifying Young’s slits experiment or enabling it to be demonstrated using waves other than light. Complete with batteries, full instructions, and suggestions for use.
PH94022 -
Vacuum Apparatus
Spectrum Tubes
Made of glass, 26 cm long overall, narrowed to capillary width for 8.5 to 10 cm of length. Metal wires holding the electrodes are sealed through the ends and welded to metal caps, which have loops for connecting wires.
For use with Spectrum Tube Power supply PH61025.
PH95014 -
Vacuum Apparatus
Deflection Tube
To show deflection of cathode rays by a magnet. Horizontal tube is fitted with a fluorescent aluminium plate, the cathode side of which is bent at right angle and is provided with a slit. Cathode rays passing through the slit cast a sharp and bright shadow across the aluminium plate. When a magnet is brought near, the cathode rays deflect sharply.
*Additional power supply of 12kV is required to operate.
(Not supplied with this product)
PH95035 -
Vacuum Apparatus
Magnetic Deflection of an Electron Beam
Designed to observe how an electron beam is affected by a magnetic field. The power supply holds a deflection tube with a cathode and an anode. The cathode end features a phosphorous coating, which glows when exposed to electrons. As we bring a magnet (not supplied) near, it causes the electron beam to move in a perpendicular direction to show the deflection of an electron and how a cathode and anode both work.
PH95038 -
Vacuum Apparatus
Canal Ray Tube
To show positive rays. Vertical type, with two fused discs at each end and a perforated cathode in the center through which canal rays pass. The space below the cathode is filled with characteristic glow of cathode rays and the upper portion has canal rays. A magnet brought near the upper portion will repulse the rays, showing the positive nature of the canal rays.
PH95040 -
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Electronics
Geiger Muller Counter
Supertek’s Geiger muller counter immediately detects particles emitted by radioactive source, most commonly beta and gamma ray particles. The number of clicks heard over a period of time represents relative rate of decay for the radioactive source being sampled.
Specification:
Range:
- γRay – 20 to 120 mR/h
- βRay – 100 to 1800 mR/h
GM Tube:
- Diameter: Ø10 mm
- Total length: 90 mm
Product Features:
- Digital display.
- Continuous operation of up to 20 hours.
- Tare function to set the initial zero values.
- Portable and ergonomic hand-held design.
- For use in schools and other educational institutions.
- Includes rechargeable battery along with charger.
- Transparent cover to protect GM tube from breakage.
- Instantaneous and cumulative values are displayed simultaneously.
PH96060 -
Experiments
Pin Diode Characteristics Experiment
OBJECTIVES
- To study the response of PIN diode, in the following conditions:
- Photocurrent (Iph) vs Applied voltage at constant irradiance (Φ) under Reverse biased condition of the PIN diode.
- Current (I) vs Voltage (V) under forward bias condition of the PIN diode.
PRINCIPLE
The PN-Junction diodes, though versatile, have a few limitations regarding the amount of current they could handle before breakdown and also have low switching frequency, low power handling capacity, and low quantum efficiency. To overcome all these issues PIN diode was designed. PIN diodes are also extensively used as photodiodes in PIN photodiode configuration and are very important in optical fiber communication.
KEY FEATURES
- Precise Optical Alignment: The optical alignment of the components is attained by the optical bench, the set-up time is faster and experimentation is easy.
- Fine and Easy Light Intensity Adjustment: Light intensity adjustment is done via the use of two polarizers. This helps in easier and fine light intensity adjustments.
- Simple and Easy Connections: The color-coded terminals on the various components aid in the ease of connections thus reducing the setup time.
WHAT YOU NEED
- OB2 Optical Bench Set 0.4m 1
- HA001 Light Source Holder 1
- HA004 Polarizer Holder 1
- HA006 Analyzer Holder 1
- HA021 Photodiode Module Holder 1
- PH64505 Multimeter 1
- PH61022D/2 Power Supply for Light Source 2
Complete Equipment Set with Instruction Manual from catalogue.
PIN1-C -
Experiments
Planck Constant Experiment
OBJECTIVES
To determine Planck’s constant using LED.
PRINCIPLE
KEY FEATURES- Built-In Heater: The heating element is built into the system and is powered by 12V input. The efficient heating mechanism heats the system to the required temperature in a few minutes with a minimum power requirement of 40W.
- Modular Design: The modular design of the setup allows the testing of different colored LED’s.
- Built-In Voltage and Temperature Probe: All the necessary parameters to be measured are available directly on the setup itself.
WHAT YOU NEED
PH94004 Planck Constant Apparatus 1 PH61035D/5 Power Supply 1 PH64505 Multimeter 1 AC026 Syringe, 20ml 1 AC028 Silicone Oil, 50ml 1 Complete Equipment Set with Instruction Manual from catalogue.
PLC1-C -
Experiments
Quinck’s Tube Experiment
Objectives
To measure the magnetic susceptibility of a given paramagnetic sample (FeCl3).
Principle
The Quinck’s method is used to determine magnetic susceptibility of diamagnetic or paramagnetic substances in the form of a liquid or an aqueous solution. When an object is placed in a magnetic field, a magnetic moment is induced in it. Magnetic susceptibility x is the ratio of the magnetization I (magnetic moment per unit volume) to the applied magnetizing field intensity H. The magnetic moment can be measured either by force methods, which involve the measurement of the force exerted on the sample by an inhomogeneous magnetic field or induction
methods where the voltage induced in an electrical circuit is measured by varying magnetic moment.Key Features
- Compact Setup – The apparatus design is compact and yet effective to perform the experiments with ease. The simple connections and stand to hold the teslameter probe, makes it easy to handle.
- Custom Quinck’s Tube – Specially designed quinck’s tube can be attached seamlessly on the setup and dimensions are controlled such that it fits perfectly between the pole pieces.
Equipments Needed for the Experiment
- PH94012 Electromagnet for Quinck’s Tube 1
- AC030 Quinck’s Tube 1
- PH61035D/7 Power Supply for Electromagnet 1
- PH93225G Teslameter, Digital 1
- PH30780 Vernier Microscope 1
QTE1-C -
Experiments
Quarter and Half Wave Plate Experiment
OBJECTIVES
To study the effect of wave plates on polarized light
- Quarter wave plate
- Half wave plate
PRINCIPLE
Waveplates are optical devices that resolve a light wave into two orthogonal linear polarization components by producing a phase shift between them. The transmitted light may have a different type of polarization than the incident beam due to the induced phase difference. Commonly used retarders are quarter-wave plates and half-wave plates. The quarter-wave plate is used to convert a linearly polarized input beam into a circular (or elliptical) polarized beam and vice-versa. Half-wave plate rotates the plane of polarization of linearly polarized light that is input on it by twice the angle between its optical axis and the initial orientation of the linearly polarized light.
KEY FEATURES
- Precise Optical Alignment: The optical alignment of the components is attained by the optical bench, the set-up time is faster and experimentation is easy.
- Digital Lux Meter: This enables the measurement of light intensity at various angles of reflection. The meter reads with a precision of 1 lux.
- Easy and accurate adjustments: The design of the setup helps in the easier rotation of wave plates without blocking the path of light. The least o count of 1 aid in accurate readings
WHAT YOU NEED
OB1 Optical Bench Set 0.8m 1 UP001 Upright 1 HA001 Light Source Holder 1 HA004 Polarizer Holder 1 HA006 Analyzer Holder 1 HA510 Light Sensor Holder 1 DP1 Data Processor 1 PH61022D/2 Power Supply for Light Source 1 HA030 Quarter Wave Plate Holder 1 HA031 Half Wave Plate Holder 1 Complete Equipment Set with Instruction Manual from catalogue.
QWP1-C
+1 (630) 345-3450