Connect students to science and technology.
With NI myDAQ
& LabVIEW
Hunter Smith
K‐12 Coordinator
More than 30,000 companies
Including 90% of Fortune 500 manufacturing companies
Stay ahead of the class.
110+ Countries. 6,000+ Universities. Every discipline. 4
Meet The New STEM
Teaching Platform
NI LabVIEW
For viewing and manipulating information.
NI myDAQ
For collecting and processing data
Mini‐System
For sending project‐specific signals to and from myDAQ.
myDAQ Hardware & LabVIEW Software together create a platform for showing students real world lab experience. 5
DAQ = Data Acquisition
DAQ | dak |
(short for data acquisition)
The industry‐proven process of sampling real‐world physical conditions so the resulting values can be used on a computer.
DAQ is powerful, but was once too difficult or too expensive for education. Until myDAQ.
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NI myDAQ
Student Data Acquisition Device
NI LabVIEW software
Designed by engineers
at National Instruments
Interfaces with popular classroom hardware
Built on the software used in universities and industry
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• Custom getting started experience
– Video training
– Open ended challenges
• Simplified Menus
• Priced for Teachers
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NI myDAQ Features
Plug & Play Instruments
DMM * Oscilloscope * Func Gen
Bode * DSA * ARB * Digital I/O
LabVIEW &
Multisim
Integration
Integrated DMM
V, I, Ω, Diode
USB Bus Powered
±15 V and 5V
Power Supply
8 TTL Digital
In/Out
Analog In/Out
200ks/s +-10V
16 bit
3.5mm
Audio In/Out
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NI myDAQ Features
Plug & Play Instruments
DMM * Oscilloscope * Func Gen
Bode * DSA * ARB * Digital I/O
LabVIEW &
Multisim
Integration
Integrated DMM
V, I, Ω, Diode
USB Bus Powered
±15 V and 5V
Power Supply
8 TTL Digital
In/Out
Analog In/Out
200ks/s +-10V
16 bit
3.5mm
Audio In/Out
11
USB Integration
•
•
•
•
Uses standard A‐B USB cable
No extra power plug needed
Highly portable (w laptop / or tablet)
Operating system support – Full support for Windows
• XP/Vista/7
– Partial support for Mac
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NI myDAQ Features
Plug & Play Instruments
DMM * Oscilloscope * Func Gen
Bode * DSA * ARB * Digital I/O
LabVIEW &
Multisim
Integration
Integrated DMM
V, I, Ω, Diode
USB Bus Powered
±15 V and 5V
Power Supply
8 TTL Digital
In/Out
Analog In/Out
200ks/s +-10V
16 bit
3.5mm
Audio In/Out
13
Frequency
• How fast is the signal?
• Measured in Hertz (Hz)
– number of signals per second
• Humans hear sound
– 20Hz ‐ 20kHz
• CD Audio
– 44.1kHz
• DVD Audio
– XkHz
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Amplitude
• How big/loud is the signal?
• Measured in Volts (V)
– Often scaled or converted
• Two ended measurement
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Analog vs. Digital
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Analog Signals
• Measures 200,000 samples per second – 200 kHz
• Signal Range ‐10V to 10 V
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Bit Resolution
• 3‐bit resolution can represent 8 voltage levels
• 16‐bit resolution can represent 65,536 voltage levels
16-Bit Versus 3-Bit Resolution
(5kHz Sine Wave)
10.00
111
8.75
Amplitude
(volts)
7.50
110
6.25
101
3‐bit resolution
100
5.00
011
3.75
010
2.50
001
1.25
0
16‐bit resolution
|
0
000
|
|
|
|
50
100
Time (ms)
150
200
• CD’s use 14 or 16 bit
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Analog Exercise
• Use myDAQ and LabVIEW to read in an audio signal from a microphone
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Analog Review
• Frequency – How often does the signal change
• Amplitude – How big is the signal
• Sampling Rate – How fast you read the signal
– Samples per second, acquisition speed
• Resolution – How accurate you read the signal
– Bit depth, accuracy, precision, • Converters – Digital to Analog (DAC) / Analog to Digital (ADC)
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Analog Signals
Input
• Temperature
• Force / Strain
• Sound
• Angle
• Position
Force sensor
• Color
• Acceleration
Output
• Sound
• Light (brightness)
• Controlling external devices
• Motor
Flex sensor
DC Motor
Accelerometer
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NI myDAQ Features
Plug & Play Instruments
DMM * Oscilloscope * Func Gen
Bode * DSA * ARB * Digital I/O
LabVIEW &
Multisim
Integration
Integrated DMM
V, I, Ω, Diode
USB Bus Powered
±15 V and 5V
Power Supply
8 TTL Digital
In/Out
Analog In/Out
200ks/s +-10V
16 bit
3.5mm
Audio In/Out
22
Digital Signals
• On / Off, Boolean, digital
• Better for storing and sending signals
• Used by computers
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Amplitude
• On or Off
• Logic Levels
– TTL
• 0‐5 V
– LVTTL
• 0‐3V
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Button/Switch Wiring
+5V
DIO 0
Resistor
DGND
DIO 7
Digital Signal Examples
Inputs
• Buttons
• Limit Switches
Outputs
• Lights (on/off)
• Buzzer (on/off)
• External control
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NI myDAQ Features
Plug & Play Instruments
DMM * Oscilloscope * Func Gen
Bode * DSA * ARB * Digital I/O
LabVIEW &
Multisim
Integration
Integrated DMM
V, I, Ω, Diode
USB Bus Powered
±15 V and 5V
Power Supply
8 TTL Digital
In/Out
Analog In/Out
200ks/s +-10V
16 bit
3.5mm
Audio In/Out
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Virtual Instrumentation
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ELVISmx Virtual Instruments
•
•
•
•
•
•
•
Digital Multi‐Meter (Volt meter)
Oscilloscope
Function Generator
Bode Meter
Dynamic Signal Analyzer
Arbitrary Waveform Generator
Digital Logic Analyzer
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Plug it in. Watch it go.
Oscilloscope
Function Generator
Arbitrary Waveform Generator Digital Multimeter
Digital Reader
Bode Analyzer
Digital Writer
Dynamic Signal Analyzer
With LabVIEW, myDAQ replicates thousands of dollars in instrumentation. And lets you make your own too. 30
Soft Instruments Exercise
• Open a few of the soft instruments and explore
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NI myDAQ Features
Open Integration
Open Integration
Open Integration
Open Integration
Open Integration
Open Integration
Open Integration
Open Integration
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Design your own solution
ET1
Give students easy access to the same tools National Instruments has provided to engineers for over 30 years.
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Slide 33
ET1
I actually think we may not need this one. by the time I got to it in the presentation, I felt like I had already talked about it and was
more saying "and this slide just reiterates that this is industry technology"
Emily Thomson, 5/11/2011
Do‐it‐yourself‐ers. Go nuts.
myDAQ connects the PC to hundreds of sensors
and controls—from home‐made to high‐tech. 34
What will you connect?
Degrees of Freedom • Low Current • Alcohol Gas • Voltage Current • Barcodes • Barometric Pressure • Sound • Capacitance •
Carbon Monoxide • Camera • Light • Color Compass •
Temperature Accelerometer • Fingerprints • Flex Force • Gas •
Geiger Counter Gyro • Hall Effect • Humidity Infrared • Liquid Level • Load Magnetic Card • Methane Photocell • Touch Keypad • Optical Dust • Motion • Polar Heart Rate • RFID • Tilt •
Ultrasonic Range Finder • Voice Recognition Module • Weather Meters • Wiper/Actuator
myDAQ talks to sensors you already have,
and plenty you haven’t tried yet.
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Vernier Integration
Magnetic Field Sensor
Accelerometer
Force Plate
CO2 Sensor
Ion Sensitive Electrodes
Photogate
Soil Moisture Sensor
Rotational Motion Sensor
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The Infinity Project
Teach outside the box.
Right out of the box.
•
•
•
Start teaching with myDAQ today.
Rely on professionally designed lessons.
Fit all your activities into a proven curriculum.
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NI myDAQ Features
Plug & Play Instruments
DMM * Oscilloscope * Func Gen
Bode * DSA * ARB * Digital I/O
LabVIEW &
Multisim
Integration
Integrated DMM
V, I, Ω, Diode
USB Bus Powered
±15 V and 5V
Power Supply
8 TTL Digital
In/Out
Analog In/Out
200ks/s +-10V
16 bit
3.5mm
Audio In/Out
38
LabVIEW Camera Integration
• USB Webcam integration
– Must be “Direct Show Compliant”
– Included in Infinity Curriculum
• Powerful LabVIEW image processing tools
– Included in LV for Education (June 2011)
Educator Resource
.com
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NI1
Support and inspiration.
A click away.
Discover K12Lab.com for support, classroom ideas and full myDAQ lesson plans you can start using today.
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Slide 41
NI1
I liked the old slide looked better than this one (I'm okay with the computer screen, but can we move the rest of it back to the old
look? The text looks squished on this one.
Emily, 4/1/2011
NI myDAQ Features
Plug & Play Instruments
DMM * Oscilloscope * Func Gen
Bode * DSA * ARB * Digital I/O
LabVIEW &
Multisim
Integration
Integrated DMM
V, I, Ω, Diode
USB Bus Powered
±15 V and 5V
Power Supply
8 TTL Digital
In/Out
Analog In/Out
200ks/s +-10V
16 bit
3.5mm
Audio In/Out Analog ICs Supplied by
For more info
With NI myDAQ
& LabVIEW
Bernoulli's Principle
Force • Velocity • Pressure
• Explore how a wing generates lift according to airspeed.
• Show them the correlation between physical motion and on‐screen data.
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Newton’s st
1 Law
Force • Mass • Acceleration •
Friction • Potential Energy
• The familiar “inclined plane”
activity, reinvented for a digital generation
• Let students create theories and test them instantly.
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Green Energy
Energy • Power • Sustainability
• Explore the challenges of harnessing usable wind energy.
• Let students design their own system for maximum efficiency.
• Measure and discuss energy lost to inefficiency.
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Circuits & Electronic
s
Voltage • Current • Resistance • Explore Ohms law and electronics theory with the Multisim circuits teaching environment
• Have students understand the how and why of a circuit mini‐
system before building the real thing themselves
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Multisim / Ultiboard
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NI Multisim
• Circuit layout and simulation tool
• Create and test virtual circuits
• Used in
– Engineering
– Career Tech
– Electronics
– Circuits
NI Ultiboard
• Printed Circuit Board (PCB) Layout tool
• Design and create your own circuit boards
• Used in
– Engineering
– Career Tech
– Electronics
– Circuits