Now remove the voltage divider from your circuit, and connect a 100k test resistor. Simulating ac 285 rms voltage using ac arduino voltmeter. Carya has developed the pdf toolkit so you can design report templates in ni labview software and populate these templates with data from labview applications be it text, numbers, or graphs. Oct 17, 2019 when a ground loop exists, the measured voltage, v m, is the sum of the signal voltage, v s, and the potential difference, v g, which exists between the signal source ground and the measurement system ground see figure 6.
Labview tm measurements manual labview measurements manual april 2003 edition part number 322661b01. Place the write to measurement vi to the block diagram and create a control button for it. Control and interfacing of motors with nilabview using ni. Pdf development of virtual resistance meters using labview. Pdf toolkit for labview carya automatisering national. The output from the digital output carddi 0 actuate the relay. The signal may pass through a signal conditioner, which is a device that may, among other things, attenuate, amplify, filter. It may be performed manually by a person or automatically by a computer. Dc and ac electric power measurement electronics hub.
Carya has developed the pdf toolkit so you can design report templates in ni labview software and populate these templates with data from labview applications be it text. User manual labview user manual january 1998 edition part number 320999b01. Measuring current with an analog voltage input national. Example labview vi suppose you set the voltage range to 5v, and decide to have the power supply increment its output in 5 steps n5.
Measurements manual labview measurements manual july 2000 edition part number 322661a01. Measuring the voltage across small burden resistors placed in the circuit is. In the first part of the lab, you will modify your vi from lab 2 to measure voltage using a data acquisition board. In this connection, m and l terminals are connected to the either side of load circuit while c and v terminals are connected across the circuit. What values of voltage appear at the output of the multiply function to the input of the age364x example single d volt vi. In this voltage measurement example we are measuring voltage of the dc 9v battery, you can connect any dc source to red and black wires.
Support worldwide technical support and product information. Measure a dc voltage ni community national instruments. Dc motor speed control in labview the engineering projects. World of labview labview consists of many components the measurement and automation explorer, the labview, the data acquisition daq module, the ni 488. Becasue of this the signal could be anywhere between 03 volts, which is casuing incorrect results.
This voltage measurement example can measure maximum of 50 volts, it is useful for measurement of solar voltage, dc adapter or battery voltages. Complete arduinovoltmeter code is given at the end of this project and it is well explained through the comments. Pdf dc motor speed control using pid controller in lab view. Appendix b lists an email detailing how national instrument. Salim, sunil kumar, jyoti ohri labview based dc motor and temperature control using pid controller,ijarcsse, volume 3, issue5, may 20 low. Use labview to explore characteristics of ac circuits studied in previous electronics courses. As a proven useful tool for prototyping, the labview graphical development platform delivers a numerous solutions to a wide variety of applications such as instrumentation control, embedded monitoring and control systems, data acquiring and processing, automation test and validation systems, etc. The drainsource voltage and voltage across rd are simultaneously measured, and lowpass filtering is incorporated to reduce noise. In the second part of the lab, you will use a dc power supply and a dmm to make voltage, current, and resistance measurements. The students were asked to search for a continuous voltage measurement vi from labview library using the keyword voltage and use it to take lvdt readings. Figures 7 and 8 show the wiring diagram and front panel, respectively, for the vi used to measure the qpoint voltage and current. Connect a multimeter to the wires at set up to read dc voltage make sure pin 14 is.
How would i go about properly reading this voltage. This is 3pin device that outputs a dc voltage proportional to the measured temperature. Labview relay controller will be closed or open depending on the requirement. Tutorial on measurement of power spectra physics 123253. Simulation is performed for various voltages between 220 r.
If the least significant bits are varying record a typical value. The output provides a simulink signal that can be used by other simulink blocks. Purpose is to provide students with a satisfactory guide to complete the. The voltage divider decreases the voltage being measured. Current cannot be measured directly using an analog input. Labview is a graphical programming language, as opposed to a text based language, used to create programs in a block diagram form. Hence, it can be used to measure the dc voltages from zero volts to 10 volts. Labview measurements manual april 2003 edition part number 322661b01. In this class, you will be concerned with the measurement and automation explorer, labview and the daq module.
The myrio project essentials guide serves as the guide to interfacing ni myrio to the wide variety of sensors, actuators, and displays contained in the ni myrio starter kit, ni myrio mechatronics kit, and ni myrio embedded systems kit that students will need for projects. Ni myrio project essentials guide national instruments. Daq is the measurement or generation control of a physical phenomenon. Oct 04, 2002 analog electronics with labview is the first comprehensive introduction to analog electronics that makes full use of computer simulation.
Connect one lead from the com on the dc power supply to the lo low input of the dmm fig. Nov 05, 2015 the wattmeter connection for power measurement in a dc circuit is given in the figure below. How to use the power supply, digital multimeter and ni. If your version of labview was installed using the default installation procedure, launch. Measuring position and displacement with lvdts tutorial developer zone national instruments figure 2. This article describes the scm combined with ad converter and wireless digital transmission module which is used for building a dc voltage measurement system based on labview. Giant magnetoresistive based galvanically isolated voltage. The system uses at89c52 as controller, icl75 as precision, double integral ad converter circuit as voltage data collection, ptr2000 as a wireless transmission module and the lcd display. Measuring dc voltage using arduino starting electronics. This week, you will make dc measurements using labview 6. Figure 1 shows the power spectrum result from a timedomain signal that consists of a 3 vrms sine wave at 128 hz, a 3 vrms sine wave at 256 hz, and a dc component of 2 vdc.
The measurement system consists mainly of a special coil. Write labview programs to display and measure ac waveforms produced by external sources. Connect the signal of interest to the analog input channel 0 ai0 terminal of your device. May 09, 2019 current cannot be measured directly using an analog input. So launch labview and explore the labview environment as you read this section. Nov 04, 2012 for the love of physics walter lewin may 16, 2011 duration. The dc component has a height of a0 2 where a 0 is the amplitude of the dc component in the signal.
The top row of nine buttons denotes the different dmm modes, namely from left to right. May 23, 20 arduino analog inputs can be used to measure dc voltage between 0 and 5v on 5v arduinos such as the arduino uno when using the standard 5v analog reference voltage. The pdf toolkit for labview gives programmers the ability to generate professional reports in the standard portable document format pdf directly from labview applications. Connect the signal 2 output of the split signals vi to the input of the write to measurement vi. The wattmeter consists of four terminals namely, mains m, load l, common c and voltage v. Hi all, a simple one, i am using a usb6216 daq to measure a 3v dc signal. For more information on phase see the phase modulation tutorial. To fix this, either trim your op amps to minimize the dc offset or manually change the input voltage range for the daq assistant that reads vout in the labview block diagram. Purpose is to provide students with a satisfactory guide to complete the automated testing environment for lab 7 in ee330. The front panel and block diagram for this vi is shown in figures 2 and 3. Each project concentrates on a specific component or device using a mixture of text and video to. Data acquisition using labview university of washington. The output signal parameter is disabled when the block is not used in a phasor.
Studying ac circuits with labview objectives write labview programs to generate ac waveforms of userspecified shape, amplitude, and frequency. Analog electronics with labview is the first comprehensive introduction to analog electronics that makes full use of computer simulation. Measuring position and displacement with lvdts labview. Control and interfacing of motors with nilabview using nimyrio. Record the dc voltage indicated by the dmm and the dc power supply. The system uses at89c52 as controller, icl75 as precision, double integral ad converter circuit as voltage data collection, ptr2000 as a wireless transmission module.
Ee 100 dmm and dc power supply labview experiment guide. An example of practical dc voltmeter is shown in below figure. Introducing labview in undergraduate measurements and. Use the dmm terminals on the ni mydaq and labview to measure and record the dc resistance of various conductors, resistors, and insulators supplied in the mysnaptm kit. Introduction to labview and basic labview based electrical projects. Write labview programs to display the characteristic curves of resistors, diodes, and transistors studied in previous electronics courses. Ive successfully gotten my usb box to output the voltage i want while reading back a single voltage, but so far ive been unable to read back more than one voltage and if i do, the. Learn labview 202014 fast located so as to be familiar with them when they are discussed in more detail throughout the examples. Delete the merge signals vi and all broken wires in the labview block diagram. Specifies the format of the output signal when the block is used in a phasor simulation. Studying characteristic curves with labview objectives use labview to measure dc current. Arduino ac voltmeter project with code and circuit diagram. General lvdt assembly the main advantage of the lvdt transducer over other types of displacement transducer is the high degree of robustness.
The range over which the arduino can measure voltage can be increased by using two resistors to create a voltage divider. In the tutorial dc motor speed control in labview, i will explain you a complete step by step procedure to control the clockwise and counter clockwise direction of the dc motor as well as accelerating and deacelerating it with the help of the buttons on the gui created in ni labview using serial communication between arduino and ni labview. Arduino analog inputs can be used to measure dc voltage between 0 and 5v on 5v arduinos such as the arduino uno when using the standard 5v analog reference voltage. For the love of physics walter lewin may 16, 2011 duration. Using labview to measure current up to now, youve used labview to measure voltage, but not current. Ashley introduces analog electronics through a series of theoryproject sections, in which theoretical presentations correlate directly with circuit measurement and analysis projects. From the windows start menu, click on start all programs national instruments labview, or use the desktop shortcut if it is present. The voltage measurement block measures the instantaneous voltage between two electric nodes. In this paper a new giant magnetoresistive gmr based sensor system for galvanic isolated dc voltage measurement is introduced. However, if a known resistance shunt resistor is placed in series with the load and the voltage across it is measured, the current through the load can be calculated using ohms law. Labview tutorial by joseph gamble i n t r o in this document i will outline labview techniques that can be used in the generation of a labview test script for lab 7. When nimyrio is interfaced with motors and pc installed with labview 2014, then with the help of pc or a smartphone one can control the movements of the dc motor keywords. Dc voltage measurement, ac voltage measurement, dc current measurement, ac current measurement, resistance measurement, capacitance measurement, inductance measurement, diode continuity and audible continuity.
931 1455 1289 84 15 898 1588 206 1457 1456 797 1019 1509 631 1116 1581 956 263 499 1249 1389 1152 339 1475 1463 1293 477 649 688 817 1314 653 83 824 133 902 1050