ĐIỆN tử VIỄN THÔNG DTVT2 nhom1 bai10 khotailieu

NHÓM – LỚP Đ8-ĐTVT - LƯƠNG NGỌC LONG HỒNG NGỌC TRUNG HỒNG THỊ LINH NGƠ ANH TUẤN PHÙNG THỊ QUỲNH PHẠM TRỌNG HOAN MSV: 1381510142 MSV: 1381510176 MSV: 1381510140 MSV: 1381510179 MSV: 1381510165 MSV: 1381510127 Unit 10: Test and repair instruments Task 1: The instruments used for testing and repair in electronics: voltmeter, ammeter, ohmmeter, multimeter Task 2: It’s logic probe This instruments is used for measuring voltage levels and pulses in digital logic circuits It’s function generator This instruments is used for testing and adjust a variety of electronic equipment such as audio amplifiers It’s oscilloscope This instruments is used to measure fast-moving signals It’s multimeter This instruments is used to measure a number of different electrical quantities, such as voltage, current, and resistance… Task 4: The multimeter is used to check a fuse The oscilloscope is used to determine the frequency response of an audio amplifier The logic probe is used to test for the presence of a control signal on the output pin of a computer chip The multimeter is used to determine the value of the current through a transformer The function generator is used to measure the frequency of an oscillator Task 5: Three Gun Focus Beam Deflection Vertically Plates Beam Field 10 phosphor Task 6: A magnetic field is set up in the speaker coil causing the coil to vibrate The coil pushes and pulls the speaker cone causing sound waves to be produced A voltage is applied to a quartz crystal making the quartz crystal expands and contracts A voltage is applied to the Y-plates causing the electron beam to be deflected Current flows through the filament making the heater glows Task 7: Equipment for Playing CDs = a CDs player Equipment for Receiving radio (signals) = a radio receiver Equipment for Charging batteries = a battery charger Equipment for Amplifying aerial (signal) = an aerial amplifier Equipment for Filtering (out) noise = a noise filter Equipment for Synthesizing speech = a speech synthesizer Equipment for Cleaning cassette heads = a cassette heads cleaner Equipment for Amplifying (the) power (of a signal) = a power amplifier Equipment for Sensing vibration = a vibration sensor 10 Equipment for Scanning (the human) body (for disease) = a body scanner