require any external calibration or trimming to provide typical accuracies of ±1⁄4˚C at room temperature and ±3⁄4˚C over a full −55 to +150˚C temperature range. Low cost is assured by trimming and calibration at the wafer level. The LM35’s low output impedance‚ linear output‚ and precise inherent calibration make interfacing to readout or control circuitry especially easy. It can be used with single power supplies‚ or with plus and minus supplies. As it draws only 60 µA from its supply‚ it has very low
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to noise ratio. A yogi antenna‚ i.e. a dipole with one reflector and two or more directors‚ is a compact high gain directional array‚ and is often used in fringe areas. In areas where signal strength is very low‚ booster amplifiers with suitable matching network are used. on the other hand‚
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A SUMMER TRAINING REPORT ON OPERATION AND MAINTANANCE OF SUBSTATION UPCL BY SMITA DOBHAL - (07090105048) Submitted to the Department of Electrical Engineering In partial fulfillment of requirements for the award of Degree of Bachelor of Technology In Electrical Engineering Department of Electrical Engineering GOVIND BALLABH PANT ENGINEERING COLLEGE UTTARAKHAND TECHNICAL UNIVERSITY GHURDAURI‚PAURI GARHWAL UTTARAKHAND
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Radiation pattern From Wikipedia‚ the free encyclopedia Jump to: navigation‚ search Antenna radiation patterns In the field of antenna design the term ’radiation pattern ’ most commonly refers to the directional (angular) dependence of radiation from the antenna or other source (synonyms: antenna pattern‚ far-field pattern).[1][2][3] Particularly in the fields of fiber optics‚ lasers‚ and integrated optics‚ the term radiation pattern‚ or near-field radiation pattern‚ may also be used as
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......15 1.3.2 Levels and decibels .........................................................................................18 1.3.3 Noise measurement techniques and instrumentation .......................................21 1.4 The concept of impedance............................................................................................27 1.5 Sound energy‚ sound intensity‚ sound power and sound absorption ............................31 1.5.1 The energy in a sound field ................
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Multiple Choice – Choose the BEST answer for each question 1. According to the textbook‚ the word diet should be defined as: a. a restriction of food and beverages in an effort to lose weight. b. an increase or decrease in caloric intake to gain or lose weight. c. a pattern of eating. d. nutrition periodization. 2. The first goal of dietary planning is to establish daily _____ intake. a. carbohydrate b. protein c. fat d. energy 3. Which energy-containing compound is most readily
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43.22° V 2.839!-46.78° V 2.092!23.02° V 2.092!23.02° V 2.230!43.22° mA 2.230!43.22° mA 2.230!43.22° mA 2.092!23.02° mA 0.772!113.02° mA The measured data‚ in table 1‚ is a very accurate representation of the theoretical calculated values. The impedance had a magnitude error of 0.85% and phase error of 0.02°. The RMS voltages had an error ranging from 1.04% to 2.78% and their phases had an error ranging from 0.02° to 0.92°. The RMS currents had a percentage error ranging from 0.90% to 2.78% and
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Purpose: The purpose of these experiments[1] was to measure the exciting current and determine the core losses in a transformer using the open circuit test (experiment # 2) and to determine the equivalent circuit of a transformer by using the short circuit method (experiment # 3). Introduction: In order to determine the equivalent circuit parameters of a transformer two simple tests are used‚ namely the open-circuit test (experiment #2) and the short-circuit test (experiment #3). By performing
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winding or input winding. The winding connected to the loads is called the secondary winding or output winding. Introduction The open-circuit test‚ or "no-load test"‚ is one of the methods used in electrical engineering to determine the no-load impedance in the excitation branch of a transformer. In this experiment‚ open-circuit test is conducted on single-phase and three-phase transformer to determine the iron core resistance‚ Rc and magnetized reactance‚ Xm. The purpose of short-circuit test is
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like a short circuit allowing maximum current to flow via the input resistor‚ Rin as potential difference exists between the two plates. No current flows into the amplifiers input and point X is a virtual earth resulting in zero output. As the impedance of the capacitor at this point is very low‚ the gain ratio of Xc/Rin is also very small giving an overall voltage gain of
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