Introducing NI Data Acquisition Devices
Allison You
NI Taiwan Applications Engineer
Allison You 游謹綸
Applications Engineer
National Instruments
Education
•National Taiwan University
MS, Electronics Engineering
- Master thesis on the behavior of the
DNA molecules in alternating current fields
•National Chiao Tung University
BS, Electronics Engineering
- Theoretical physics project on quantum
computing by numerical simulation
20 Years | NI Data Acquisition
1987 NUBUS
1991 AT/PC/XT/EISA
1993 E Series
1997 PXI DAQ
2005 USB DAQ
2004 M Series
2008 Wi-Fi DAQ
2006 NI CompactDAQ
NI-STC3 Timing and Synchronization
Technology
NI-STC3 Timing and Synchronization
Technology
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Counter improvements
100 MHz timebase
New digital I/O timing engines
Retriggering on every subsystem
X Series Multifunction DAQ
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•
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Up to 32 Analog Inputs, up to 2 MS/s (16-bit resolution)
Up to 4 Analog Outputs, up to 3.33 MS/s (16-bit resolution)
Up to 48 digital I/O lines, up to 10 MHz
Four 32-bit counters on each device
Counter Improvements
• You no longer need to “burn” a counter to time other
subsystems
• Each one has more functionality than before
Counter Improvements
• You no longer need to “burn” a counter to time other
subsystems
• Each one has more functionality than before
Counter Improvements
• Finite pulse train now only
takes one counter
X Series Key Features
NI-STC3 timing and
synchronization
technology
NI-DAQmx software optimizations
High-throughput, native
PCI Express interface
100 MHz Timebase
produces more accurate sampling rates
Timebase
Programmable
Clock Divider
Analog or
Digital I/O
Clock
• How to create a 1.25 MS/s sample clock?
– 20 MHz/16 = 1.25 MS/s
– 100 MHz/80 = 1.25 MS/s
• How to create a 1.23 MS/s sample clock?
– 20 MHz/17 = 1.18 MS/s
– 100 MHz/81 = 1.235 MS/s
Digital Timing Engines
M Series:
Correlated
X Series:
No more correlated
Retriggerable Operations
M Series:
Retriggerable Operations
X Series:
X Series devices support retriggering on analog I/O, digital I/O and counter I/O
NI-DAQmx Software Optimizations
• Easy multicore application development
with LabVIEW and NI-DAQmx
• Optimizations for low latency and
single-point control
• Easy multidevice synchronization and data
logging
Synchronizing Multiple Devices
M
X Series:
Data Logging
Configure Logging.vi
The easiest AND fastest way to log acquired data to disk
X Series Specifications
New Features
•Three AI Timing Engines
•Built In BNC Triggers
•Four Counters
•Locking USB Cable
•9-30 VDC Power
•Screw Terminals
•Four Slot Chassis
10 Hz
100 Hz
10 kHz
More Features, More Tests
What Customers See
What Test Engineers See
Advanced controller boards
Digital I/O
“Ultra quiet” operation
NVH test
noise, vibration,
harshness
Multiple temperature zones
Thermal gradient
testing
Energy Star compliance
Power consumption
AI Modules
Low Speed Modules
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Sample Rate < 100 S/s
Measurements
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Temperature
DC Voltage/Current,
Pressure/Load
monitoring
Example Modules
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–
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NI 9211
NI 9213
NI 9219
Dynamic Modules
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Sample Rate 50 kS/s/ch
Measurements
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Dynamic strain
Frequency analysis
Sound/Vibration
Example Modules
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NI 9237
NI 9225/29/39/27
NI 9233/34
High Speed Modules
Sample Rate > 100kS/s
Measurements
High Speed Voltage
Example Modules
NI 9201/21
NI 9215
NI 9205
Appliance Test with Multiple Sensors
Block Diagram: Original Chassis
Power Calculation
Vibration Analysis
Temperature Chart
Block Diagram: New Chassis
cDAQ-9174 (Four-Slot CompactDAQ)
Differences from cDAQ-9178
• 4 slots
– Different panel mount holes
• No external BNC triggers
Everything else is identical
• Timing engines
• Counters
• Power consumption
• All other features
Physical Updates
Locking USB Cable
BNC Trigger Lines (8 slot only)
Screw Terminal Option for Power
(DC 9-30V)
More Features, Less Wattage
11 Channels at 50k (24bit)
4 Channels at 100k (16bit)
Under 5 Watts
Measured with CompactDAQ system
•cDAQ-9174
•NI 9225 (Voltage up to 300 Vrms)
•NI 9227 (Current up to 5 Arms)
C Series
• Busses
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–
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USB
Ethernet
Wi-Fi (802.11)
Embedded
• Chassis
– 1-slot
– 4-slot
– 8-slot
• Modules
– Over 50
Digital Timing Engines
cDAQ-9174/78
cDAQ-9172
Independent timing engine removes need to use counter resource to clock
the DIO.
•Not “wasting” a counter
•Easier to program
NI CompactDAQ
New Features/Lower Price
•Three AI Timing Engines
•Built In BNC Triggers
•Four Counters
•Locking USB Cable
•9-30 VDC Power
•Screw Terminals
•Four Slot Chassis
NI WSN-9791
Wireless Sensor Network Ethernet Gateway
Features
•2.4 GHz, IEEE 802.15.4 radio
•10/100 Ethernet
•Outdoor range up to 300 m
•9-30 VDC power input
Specifications
•2U Compact Form Factor
•Panel or DIN rail mounting
•Industrial ratings
•Operating temperature -30 to 70 ºC
•50 grms shock 5 g vibration
•Status LEDs
NI WSN-3202 and NI WSN-3212
Wireless Sensor Network Measurement Nodes
Common Features
• 2.4 GHz IEEE 802.15.4 radio
•Outdoor range up to 300 m
•Greater than 3 year battery life with 4 AA batteries
• Optional 9-30 VDC power input
•Configurable as a mesh router
•Four bi-directional DIO lines
• Industrial ratings
• Operating temperature -40 to 70 ºC
•50 grms shock 5 g vibration
Node
AI
DIO
Sample
Interval
Sample
Rate
Resolutio
n (bits)
Features
NI WSN-3202
Analog Input Node
4
4
1 second
60
samples/mi
n
16
Sensor power: 20 mA @
12V Input Ranges: ±10 V,
±5 V, ±2 V, ±0.5 V
NI WSN-3212
Thermocouple Input
Node
4
4
2
seconds
30
samples/mi
n
24
Supports types J, K, R, S, T,
N, B, E
2.4 GHz Standards
Power Consumption,
Cost, and Complexity
High
Low
(Battery)
WLAN
IEEE 802.11
Wi-Fi
Transmission
Distance
Long
WPAN
Bluetooth
Medium
Short
IEEE 802.15.4
ZigBee, NI-WSN
100 k
1M
10 M
Data Rate (b/s)
100 M
Wireless Sensor Networks
NI Wi-Fi DAQ
NI WSN
Up to 250 kS/s
< 10 S/s
Up to 100 m
Up to 300 m
Star
Mesh
Power
Line / Wall-Powered
Battery
Security
WPA2 (IEEE 802.11i)
N/A
Throughput /
Bandwidth
Range
Topology
Visit ni.com/wireless for more information
NI-WSN (IEEE 802.15.4)
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Based IEEE 802.15.4-2006
Integration with LabVIEW
Up to 3 year battery life at 1 minute sample interval
Data Rate: 250 kbits/s
Provides:
• Mesh Routing - Ability for network to detect alternative
paths
• Sleep Mode – Ability end node conserve power and
maintain reliable communication
NI WSN Software
NI Measurement & Automation
Explorer (MAX) Integration
• Network configuration
• Add/remove WSN nodes
• Set wireless channel
• Update firmware
• Configure nodes as routers
NI WSN Software
LabVIEW Project Integration
• Autodetection of WSN nodes
• Drag-and-drop variables
LabVIEW WSN Module Pioneer
• Extend battery life
– Transmit meaningful data (threshold, averaging, and deadband)
– Adapt sample and transmission rates to operating conditions
• Perform custom analysis
– Convert raw data into meaningful information
– Interface to sensors
• Reduce response time with embedded
decision making
– Control actuators without host interaction
The Power of DAQ along with
Graphical System Design