Design and Implementation of an Analog Multimeter Using Permanent Magnet Moving Coil (Pmmc) Meter Movement
DESIGN AND IMPLEMENTATION OF ANANALOG MULTIMETER USINGPERMANENT MAGNET MOVING COIL(PMMC) METER MOVEMENT |
KEVIN BARRAQUIAS DELOS SANTOS
2008-19116
MARX MARJONEL BIBAR JOVELLANO
2008-30845
PRINCE TEOMEL GUSTO MATEL
2008-18863
SUBMITTED TO THE FACULTY OF THE
COLLEGE OF ENGINEERING AND AGRO-INDSUTRIAL TECHNOLOGY,
UNIVERSITY OF THE PHILIPPINES LOS BAÑOS,
IN PARTIAL FULFILLMENT OF THE REQUIREMENTS
FOR THE DEGREE OF
BACHELOR OF SCIENCE IN ELECTRICAL ENGINEERING
OCTOBER 2010 I. INTRODUCTION
An analog multimeter is a device that is composed of various meters combined. Such instrument can measure resistance, voltage and current. It is commonly known as volt-ohm meter or VOM. This device can also determine the continuity in a circuit and it measures with high accuracy. In this project, a VOM was built using the given parameters and tested it in various circuits. The knowledge in building this kind of instrument is very helpful for the students. A. OBJECTIVES OF THE STUDY
A.1 GENERAL OBJECTIVE
This project intends to design and to implement an Analog Multimeter using a Permanent Magnet Moving Coil (PMMC) meter movement. A.2 SPECIFIC OBEJECTIVE
The specific objectives are: * To determine the internal resistance of the PMMC meter movement using variable resistor method. * To compute for the shunt resistance of 10mA and 100mA range ammeter. * To compute for the shunt resistance of 5 volts and 30 volts range voltmeter. * To determine the shunt resistance of ohmmeter with a 1.5 voltage. * To make a schematic diagram of the multimeter circuit.
B. SCOPE AND LIMITATIONS * PMMC meter movements or the panel meter in the analog multimeter will not work correctly if directly connected to alternating current, because the direction of needle movement will change with each half-cycle of the AC. Permanent-magnet meter movements, like permanent-magnet motors, are devices whose motion depends on the polarity of the applied
KEVIN BARRAQUIAS DELOS SANTOS
2008-19116
MARX MARJONEL BIBAR JOVELLANO
2008-30845
PRINCE TEOMEL GUSTO MATEL
2008-18863
SUBMITTED TO THE FACULTY OF THE
COLLEGE OF ENGINEERING AND AGRO-INDSUTRIAL TECHNOLOGY,
UNIVERSITY OF THE PHILIPPINES LOS BAÑOS,
IN PARTIAL FULFILLMENT OF THE REQUIREMENTS
FOR THE DEGREE OF
BACHELOR OF SCIENCE IN ELECTRICAL ENGINEERING
OCTOBER 2010 I. INTRODUCTION
An analog multimeter is a device that is composed of various meters combined. Such instrument can measure resistance, voltage and current. It is commonly known as volt-ohm meter or VOM. This device can also determine the continuity in a circuit and it measures with high accuracy. In this project, a VOM was built using the given parameters and tested it in various circuits. The knowledge in building this kind of instrument is very helpful for the students. A. OBJECTIVES OF THE STUDY
A.1 GENERAL OBJECTIVE
This project intends to design and to implement an Analog Multimeter using a Permanent Magnet Moving Coil (PMMC) meter movement. A.2 SPECIFIC OBEJECTIVE
The specific objectives are: * To determine the internal resistance of the PMMC meter movement using variable resistor method. * To compute for the shunt resistance of 10mA and 100mA range ammeter. * To compute for the shunt resistance of 5 volts and 30 volts range voltmeter. * To determine the shunt resistance of ohmmeter with a 1.5 voltage. * To make a schematic diagram of the multimeter circuit.
B. SCOPE AND LIMITATIONS * PMMC meter movements or the panel meter in the analog multimeter will not work correctly if directly connected to alternating current, because the direction of needle movement will change with each half-cycle of the AC. Permanent-magnet meter movements, like permanent-magnet motors, are devices whose motion depends on the polarity of the applied