If your device is configured to another device name, you need to rename. With labview i calculte the rpm on the counts within 1 sec. When i last wrote a labview program for one of these several years ago, everything was good. If youd like to get started with this type of sensing, t. I used the counter0 to count the falling edges from the hallsensorsignal. Development tools downloads ni labview by national instruments corporation and many more programs are available for instant and free download.
Agilent technologies keysight technologies 53181a rf. Rpm counts of incoming digital pulses ni community. A simple photo transistor input to the counter will give rpm but a digital pull scale would be nice for torque related measurements. Gdrive for labview by national instruments national instruments. This video only helps with the difficult task of turning. This set of labs introduces students measurements, instrumentation, and rf communications through handson labs. The purpose of this example is to calculate the revolutions per minute rpm of incoming digital pulses. On the front panel click right and from the control palette just appeared select boolean and then select square led as shown in the figure below. Arduino rpm counter tachometer code arduino for projects. Labview daq ulx for ni labview measurement computing.
Labview may be requested from the college of engineering software ordering site. Data acquisition, labview, measurement system, induction motor. Throughout these topics, students learn how to use ni elvis platform as it interfaces to multisim and labview for simulation and experimentation. If you press the button, the counter should go up by one, this should continue until 60, where with the next button press the counter resets to 0 to start all over again. Handson lab labview nidaq counters and timers the usb6211 provides two 32bit 80 mhz counterstimers. When you install labview, the installer places both. I am trying to build a rpm controller for my project. This labview program is configured to connect todev1 for your ni elvis workstation.
That is the reason why labview is extensively used in various industries and a wide variety of applications. If you plot these position measurements against time, you can use the slope as the revolutions per minute rpm. This web page can be used to download and install national instruments driver software on linux desktop. Jul 21, 2011 i want to generate a new row of data each time i press the add data button, and the row number will be generated by an incremental variable that keeps track of how many times the switch has been pressed. All of this car stuff is fairly slow, since the engine only turns 8,000 rpm which is 4000 pulses per minute or 66. The software started with progressive versions hp rocky mountain basic and then labview, see computer. Keysight has provided data acquisition daq and switching solutions for more than 25 years. Electric machine experimental monitoring system based on. Apr 05, 2016 an introduction to labview searches related to labview tutorial labview 2010 tutorial labview tutorial pdf labview download labview tutorial video labview 2009 tutorial labview 8.
A hallsensor get twice a signal each turn from the spindle. You should have an icon on your desktop for labview 2017. Counters provide the functionality of outputting a square wave pulse train as well. Counters this lesson focuses on the counter functionality of a daq device. How to make simple up down counter labview youtube. This post, however, will outline how to install the necessary drivers and software for the mydaq.
A few days back when i was creating a project that time i required an rpm tachometer to check the rotational speed of motor but did not have the rpm meter then i decided to make it myself as i know how to make it and i had all the equipment required. I want to generate a new row of data each time i press the add data button, and the row number will be generated by an incremental variable that keeps track of how many times the switch has been pressed. Example programs are included with most instrument driver downloads. Comments are turned off autoplay when autoplay is enabled, a suggested video will automatically play next. With 12 different instruments, students can apply what they learned about different engineering topics in the laboratory and have a hands. In this paper, a monitoring and velocity measurement algorithm is developed based on labview due to its capability to implement the mathematical and logical functions.
Open the block diagram window and study the program. It sorts out many scientific and engineering problems in the field of electronics. Diy digital rpm tachometer rpm counter and arduino. Create a blank vi as you did in tutorial 1 and save it for future use as you have been doing in all the previous tutorials. Arduino rpm counter tachometer code use arduino for. The lesson also describes the daqmx vis used for counter operations. Fpga labview programming, monitoring and remote control. Chances are, if your computer was made in the last 67 years, you will want to download the 64bit version. The mydaq has one onboard counter that can be used for counter measurement functions. Features include thermocouple or voltage configuration per channel along with digital and counter functions. Arduino projects, make arduino rpm counter with arduino. Tachometerencoder using hall effect sensor, mydaq and labview.
This kind of system is flexible, chip and easy to modify. Contains the following labview manuals in adobe acrobat. In order to precisely control the speed of an electric motor, it is. How to program arduino with labview step by step guide.
Instead of a slotted sensor, it has a reflection based sensor. Principle of cet method to measure the angular velocity. Ni 9361 velocity measurement ni community national instruments. Cny70 is used for determining rpm of the motor as a reflective optical sensor. I am using the code given below inorder to caluculate the rpm of the dc motor. Using the counter output event property in nidaqmx. So, i would suggest you if you are new to labview then read these labview tutorials one by one. Scroll down to the ni labview 2017 downloads section and click on the link for the version you need. Labview makerhub view topic labview rpm measurement with. This is accomplished by counting the falling edge of the square wave generated by the hall effect sensor that is located inside the fan or pump. Labview, temperature sensor, optical sensor, daq card. This video is a demo of daq worksheet 004 for eltt1240 intro to labview programming.
So the task is, that you have some kind of a counter which goes from 0 to 60 and a push button. I am using a quadrature encoder ppr400 and arduino uno for this purpose. Labview to monitor, calculate and plot the mentioned parameters based on the. From here, you can infer the distance that your device has traveled, or any number of other important variables. Result and data sets are handled as cluster arrays. Now that the software is installed and activated, youre ready to use it. Synchronous generator model based on labview software.
In these tutorial, i have given the introduction of labview and have explained from very basics how to start working with labview. I am having real troubles with a seemingly easy task in labview. The difficulty and cost of implementation of such these measurement systems motivated to design and develop a new display algorithm based on labview which is able to plot flow rate, the mean of flow rate. Connecting counters to measure frequency and period. This instructable will show you how to make a portable digital optical tachometer using an arduino uno. This paper presents a comparison between two motor controls in labview. I will made a simple gui graphical user interface for stepper motor speed control in labview. Labview by national instruments ni office of information. The counter output event is an event that occurs when the counter reaches its terminal count. Sep 09, 2016 this free download of ni labview 2016 is for windows 32 bit 64 bit. Use counter frequency to obtain an encoder rotational speed ni. Uts ni academic site license for labview teaching and research large includes the labview professional development system labview pds and several addon modules and toolkits. Labview is a graphical program commonly used by scientists and engineers for data acquisition, instrument control, and industrial automation. Stepper motor speed control in labview the engineering projects.
Note the example isnt suitable for two pulse encoders, x2, or x4 encoding. Keywords flow meter, hall effect, hall latch sensor, lab view. Labview reduces the complexity of programming, so you can focus on your unique engineering problem. Tachometer simple encoder using hall effect sensor, mydaq and labview download from my website. Daqmx allows you to select the signals output behavior and export the counter output event to a specified. Usb 12bit and 14bit multifunction daq devices and boards. The labview instrument driver import wizard allows you to convert an instrument driver from labwindowscvi c source to a labview wrapper dll. Mar 22, 2019 ni labview is an intuitive development environment for creating custom applications that interact with realworld data and signals. The engine runs at 850 rpm under controlled conditions of 25.
The data you get back can be converted into rpm very easily have a look at counter timer examples in labview you want to do a frequency measurement. First things first let me explain how the rotational speed of a microgas turbine can be found as there. You dont have to worry about the thickness of the rotor2. First of all, you should read these basic labview tutorial. Some time we required to check the rpm of the motor while creating projects. Labview stands for laboratory virtual instrument engineering workbench, which is a software development environment for creating custom applications that are able to monitor and control the realtime data in engineering and science field applications. The main idea is to generate a trapezoidal signal which drives the dc motor and then to measure the rpm with a counter. Graphical display of measurement data, zoomed observation, file saving, and dynamic transfer of data to excel spreadsheet software. Labview, from national instruments, is a graphical programming environment designed specifically for scientists and engineers who need to acquire, analyze, and present scientific data or to control automated processes. To demonstrate how to calculate the revolution per minute rpm of incoming digital pulses description. There will be five different buttons on the gui for clockwise rotation, counter clockwise rotation, stopping the stepper motor, accelerating and deaccelerating the stepper motor respectively.
The counter can be accessed by using dio 0, 1, 2, and 3 to interface with the counter lines of the counter chip. If you have issues downloading or installing labview, please contact national instruments support using the account you created. Measuring rpm with labview there appears to be two ways of measuring the rotational speed with labview, one of which is easier than the other. Weve written many tutorials and informational blogs about the mydaq. Ni labview 2016 is a virtual environment for the running the programs written in a visual programming language g. Sampling rate sound and vibration sound and vibration.
The ni mydaq is a versatile data acquisition device that can be used with ni labview software. Counter output pin where the counter can generate various ttl pulse waveforms. Included are four channels for a quick and easy way to add vernier sensors without external wiring or signal conditioning. From hardware configuration to debugging, labview generates fast results and turn your acquired data into real business solutions. The following drivers can be installed using the attached files. Use the built in sensor vis to start getting data to your pc in seconds or use the peripheral vis to access your devices digital io, analog io, spi, i2c, uart, pwm and more. After your 7 day trial expires, you will be asked during each. All we have to do is use the arduino to do is count that data. Designed for engineers and scientists, labview offers tools and programming options to help you complete your projects faster. This video only helps with the difficult task of turning encoder pulses into rpms. Labview daq with ulx for ni labview is software for quickly developing data acquisition. Therefore, pulse counter continues the counting of speed pulses as long as the velocity pulse is high11. Today we are going to learn how to read the rpm of a pc fan. When dealing with robotics and other electronics projects, it can be important to know how many revolutions a motor is making.
So in this article, i am going to explain you about diy digital. But until i get the flywheelpulleys and make some manual measurements. My problem is, i cant find a way to make numeric variables in labview. Reading pc fan rpm with an arduino the makers workbench. Pdf synchronous generator model based on labview software. Labview 2016virtual instrument engineering workbench free. Revolutions per minute rpm measurement is crucial when controlling or monitoring the speed of motors, conveyors, turbines, etc. This module introduces digital and counter io concepts using ni labview software. Labview is a systemdesign platform that provides visualization to all aspects of your application.
We provide data acquisition solutions for electrical, physical, mechanical, acoustic and signal routing applications up to 50ghz. The usb2408 series of usb data acquisition daq devices have 24bit resolution for highly accurate measurements. The sensordaq interface is perfect for teaching ni labview or for building sensorcontrol student projects using ni labview software. Labview enables you to immediately visualize results with builtin, draganddrop engineering user interface creation and integrated data viewers. Harmonic of the rotational speed of rotating machinery. Using counters and digital io national instruments. See table below for the lines used by the counter and what each correlates to. When the terminal count is reached can be determined in hardware by using the counter output event property in daqmx. This page is meant to be included in other pages and is not intended to be used as a stand alone page. Every time i would write a new digital value to a pin, the other pins would also change. Data streams from this counter to the computer over an rs232 serial port. Using counters and digital io on usb data acquisition devices. Development and implementation of virtual instrumentation based. The labview instrument driver export wizard allows you to convert a labview 8.
Detecting the stoppage of a rotating shaft zerospeed detection is significant in many applications, for example, to determine whether a conveyor has failed. Then the counter is reset, the gate is opened for ten seconds so that the counter can increment on each positive transition of the input signal and then the gate is closed. Find instrument drivers that are available for this instrument for use in labview, labwindowscvi, or measurement studio. Measure position and velocity of angular encoder using one. Apr 27, 2017 i will made a simple gui graphical user interface for stepper motor speed control in labview. Production of torque is owing to the fundamental interaction between these two counter balancing magnetic fields. Make sure shorter lead connected to digital pin 2 and longer lead to ground. In continuation with my previous instructable, rc car that you can find on this linkrc car using infraredive decided to upgrade the car with rpm measurement using hall sensor and a neodymium magnet. Engineering with national instruments labview vernier. Measurement computings usb1208fsls1408fs series 12 and 14bit multifunction daq devices offer 8 analog inputs, and 2 analog outputs. So the objective of this paper is to design and develop a labview based speed and direction control of dc motor. Stepper motor speed control in labview the engineering.
Design and development of labview based dc motor speed. Incremental count on button press labview general lava. The attached rpm addon files can be executed in order to support the installation of nis drivers through your linux distributions package manager. Connect the daq hardware that supports the counter input ni 9361 features. If you want to use a simple frequency counter to measure frequency to the nearest tenth of a hz, you will have to have a gate that is opened to the counter for ten seconds. Use the unwrap vi in order to accommodate jumps from 360 to 0. When you perform runup or rundown tests, the measurement results are highly dependent on the accuracy of the tachometer pulse measurement.
If you do not have this icon, then open your start menu and type labview 2017. To download ni software, including the products shown below, visit downloads. Pdf labview based motor control and monitoring system. For example, in the case of a shaft rotating at 6,000 rpm, the first order component occurs at a frequency of 100 hz 600060, whereas the third order component occurs at a frequency of 300 hz. Linx provides easy to use labview vis for interacting with common embedded platforms like arduino, chipkit and myrio. When you click on one of the links, youll be brought to nis website. Sensors like encoders on wheels, hall effect devices on metal gears and mechanical switches on turnstiles generate pulse trains. This module introduces digital and counter io concepts using ni labview.
But when i attempted to use the latest labview drivers about 6 months ago, i had problems. Labview user manual, quickstart guide, upgrade notes, g programming reference manual, cin reference manual, vxi reference manual, and labview function and vi reference manual. One way to measure velocity and position from one counter is to set up a counter task to take buffered position measurements. Pdf fpga labview programming, monitoring and remote control. It begins with an overview of counters including counter signals, the parts of a counter, the pins you connect a counter signal to, basic counter terminology, and different types of counter chips. It is a complete standalone offline installer for windows. Download labview a diagram creator that allows scientists to solve problems by gathering and processing data for advanced instruments and measurement systems. Not all manuals may be applicable to all platforms e. Bandwidth analyzer pack bap is designed to help you better understand your network, plan for various contingencies, and track down problems when they do occur.