13-02-2013, 02:43 PM
STUDY OF INSTRUMENTS
STUDY.docx (Size: 17.8 KB / Downloads: 30)
Aim: -
To gain familiarity and hands on experience with the following instruments available in the laboratory.
1. Cathode Ray Oscilloscope (Aplab 3131, Goldstar OS – 9040D)
2. Function Generator (TTi TG1010, Thandar TG502)
3. Regulated Power Supply (ITL TSD 30, Kenwood PR30-6P, TTi PL320)
4. Digital Multi Meter (Aplab 1015, Tti 1705)
5. LCRQ meter (Aplab 4910)
6. AVO meter
7. Analog and Digital Ammeters
Objective: -
At the end of this experiment the student is expected not only to be familiar with variety of connectors, electronic equipment (such as CRO, DMM, function generator etc) available in the laboratory but also should be able to (i) confidently operate various instruments (ii) express the specifications, limitations and features of various equipment.
The student familiarizes with the following via a reading exercise (i.e. going through the manufacturer’s manuals of the above equipment):
• Introduction to various types of connectors (BNCs, crocodile clips, binding posts etc.) and patch cards.
• Principle of operation, a block diagram and the technical specifications claimed by the manufacturer for every instrument indicated above.
• Position and functions of the controls on both the front and rear panels.
• Principal functions of the instrument, various modes of operation and its advanced facilities provided if any.
• Advanced features and limitations of the equipment, if any.
Student’s activity towards familiarity and hands on experience: -
(Students are advised to clearly note the distinction between the “observations” and “calculations they perform on the observations” and record in their observation notebook, the conclusions / inferences drawn about a quantity under measurement):
1. Test the continuity of patch cards provided to you using suitable meters employing appropriate modes of operation of the instrument.
2. Set function generator & regulated power supply to deliver known outputs and measure the signal attributes such as: AC voltage, DC voltage, peak voltage, peak to peak voltage and frequency using suitable instruments such as DMM & CRO employing appropriate modes of the instruments and compare.
3. Test the condition of active and ratings of passive components available employing the instruments.
4. Using function generator and passive components feed the signals of different phases to oscilloscope and measure the phase difference between two signals both manually and by employing Lissajous patterns using CRO.