University at Buffalo's
NEES Equipment Site
Instrumentation and Data Acquisition
Scot Weinreber*
Senior Instrumentation Specialist
Department of Civil, Structural and Environmental Engineering
UB Users Workshop
September 1818-19, 2006
Web Information resource
http://nees.buffalo.edu
http://nees.buffalo.edu/docs/labmanual/SEESLLabManual.pdf
UB Users Workshop
September 1818-19, 2006
Instrumentation and Data
Acquisition
UB Users Workshop
September 1818-19, 2006
Overview
• Instruments
• Calibrations
• Data acquisition systems
• User requirements
UB Users Workshop
September 1818-19, 2006
Instruments
• Standard Instrumentation
– Motion
•
•
•
•
•
•
Acceleration – Accelerometer (non-reference)
Acceleration - MEMS Accelerometers Array
Displacement - Potentiometer
Displacement - String pot
Displacement – Temposonic (sonic transducer)
Displacement / Rotation - LVDT / RVT
– Load
• Uniaxial load cell
• Strain gage
• Special Instrumentation
– Krypton
– 5 Component load cell
UB Users Workshop
September 1818-19, 2006
Standard Instruments
Potentiometer
String pot
Accelerometer
RVDT
Uniaxial load cell
Temposonic
Strain gage
UB Users Workshop
September 1818-19, 2006
Special Instruments
• Krypton Camera
– 3 D displacement measurement with 1 LED
– 6 D displacement measurement with 3 LEDs
• 5 Component load cell
– Axial load
– Shear in 2 directions
– Moment in 2 directions
UB Users Workshop
September 1818-19, 2006
Krypton video system
•
System overview
•
Hardware
•
Specifications and limitations
•
3D field of view
UB Users Workshop
September 1818-19, 2006
Krypton camera operation
The K600 camera system is a 3D measurement system based on
three linear CCD cameras. By triangulation the position of an infrared LED in space is calculated. This can be a
static or a dynamic measurement.
The field-of-view of the camera is determined by the overlap area of the three linear CCD-camera’s in the
camera unit, resulting in a pyramidal volume. The top angle of the pyramid is 34° (+17° / -17°): rule-ofthumb
says that the lateral visibility limit (measured from the symmetry plane of the camera) is half the
distance from the camera.
UB Users Workshop
September 1818-19, 2006
Krypton hardware
controller
LED strober
camera
Space probe
LED
UB Users Workshop
September 1818-19, 2006
Resolution : 0,002 mm at 2,5 mm
Noise (1s) : 0,010 mm
Accuracy :
Single Point : 0,060 mm
Volumetric : 0,090 mm + 0,010 mm/m
The indicated measurement uncertainty is expressed for a confidence level of 95%, according to the ISO
10360 II, VDI 2617 and ANSI / ASME B89.1.12M standards for acceptance of CMMs.
Acquisition frequency :
Important notice: The K400 camera system can not be used for dynamic measurements.
The measurement frequency for static measurements is set to 10Hz.
K600 CAMERA UNIT
Field-of-view: 17 m³, distributed into three accuracy zones as follows:
Resolution : 0,002 mm at 2,5 mm
Noise (1s) : 0,010 mm
Accuracy :
Zone Volumetric Accuracy
(± 2s)
Single Point Accuracy
(± 2s)
I 90mm + 10mm/m 60mm + 7mm/m
II 90mm + 25mm/m 60mm + 17mm/m
III 190mm + 25mm/m 130mm + 17mm/m
The indicated measurement uncertainty is expressed for a confidence level of 95%, according to the ISO
10360 II, VDI 2617 and ANSI / ASME B89.1.12M standards for acceptance of CMMs.
Acquisition frequency : depends on the number of LED’s:
1 LED : 1 kHz
1 frame (3 LEDs) : 800 Hz
2 frames (6 LEDs): 400 Hz
UB Users Workshop
September 1818-19, 2006
First floor braces with Krypton
Strobers
LEDS
UB Users Workshop
September 1818-19, 2006
3D Krypton field of view
LEDs in view ( green )
LED out of view ( red)
UB Users Workshop
September 1818-19, 2006
From LAB MANUAL
UB Users Workshop
September 1818-19, 2006
5 Component Load cells
• Load cell Overview
• Load cell wiring
• Load cell design specifications
• Capacity nomogram for Load cell cross section
• Example calibration data
UB Users Workshop
September 1818-19, 2006
5 Component Load cell
Top View
A
YAxis
B
X-Axis
C
D
Axial
Shear Moment
UB Users Workshop
September 1818-19, 2006
5 Component Load cell wiring
From LAB MANUAL
UB Users Workshop
September 1818-19, 2006
From LAB MANUAL
UB Users Workshop
September 1818-19, 2006
From LAB MANUAL
UB Users Workshop
September 1818-19, 2006
Calibrations
UB Users Workshop
September 1818-19, 2006
Calibration
methodology
Calibration
Calibration is the process of finding the relation between the mechanical
quantity measured and the electrical or digital output of the instrument. Calibration
process applies an excitation producing a known mechanical output an measures the
electrical / digital effect. Requires reference instrument or excitation .
Calibration for individual experiments
Calibrations for accelerometers, string pots, temposonics, strain gages,
RVDTs, and independent uniaxial load cells ( not on actuators ) are performed for
each test. The instruments are calibrated using traceable standards and using the
wires and data acquisition channels for that experiment. This corrects for impedance
changes over line lengths.
Annual calibrations
Load cells associated with actuators are either calibrated by MTS (NEES),
or calibrated by a reference standard and are matched with a conditioner and cable.
Special calibrations
The 5 degree load cells are calibrated annually, and have matched pigtail
cables and either a matched conditioner or matched Pacific channels. These
calibrations require an experimental setup that involves several instruments
simultaneously and will be described latter in detail.
UB Users Workshop
September 1818-19, 2006
Calibration Overview
•
•
•
•
•
•
5 Component Load cells
Accelerometers
String pots
Strain gages
Krypton
Future calibration equipment
UB Users Workshop
September 1818-19, 2006
5 Component Load cell Calibration techniques
Low capacity
Large capacity
UB Users Workshop
September 1818-19, 2006
UB Users Workshop
September 1818-19, 2006
Example Calibration
UB Users Workshop
September 1818-19, 2006
Accelerometer calibration
Flip calibration
CALIBRATING THE ADXL202E/ADXL210
+1 G
-1 G
The initial value of the offset and scale factor for the ADXL202E
will require calibration for applications such as tilt measurement.
The ADXL202E architecture has been designed so that these
calibrations take place in the software of the microcontroller used
to decode the duty cycle signal. Calibration factors can be stored
in
EEPROM or determined at turn-on and saved in dynamic
memory.
For low g applications, the force of gravity is the most stable,
accurate and convenient acceleration reference available. A
reading
of the 0 g point can be determined by orientating the device
parallel
to the earth’s surface and then reading the output.
A more accurate calibration method is to make measurements at
+1 g and –1 g. The sensitivity can be determined by the two
measurements.
To calibrate, the accelerometer’s measurement axis is pointed
directly at the earth. The 1 g reading is saved and the sensor is
turned 180° to measure –1 g. Using the two readings, the
sensitivity
is:
Let A = Accelerometer output with axis oriented to +1 g
Let B = Accelerometer output with axis oriented to –1 g then:
Sensitivity = [A – B]/2 g
UB Users Workshop
September 1818-19, 2006
String pot calibration
The string pot is placed on the fixture,
magnets Locked into the washers, and
the string pot line fully retracted.
The first reading for the instrument is
taken, then the line is Placed in the
slotted post for the second reading.
UB Users Workshop
September 1818-19, 2006
Strain Gage Calibration
Precision resistor
Zero strain reading
Rc
Rg
Rg
Excitation
Rg
Rg
Signal
Shunt Calibration factors
Rg
Fg
Rc
∈s
gage resistance
gage factor
shunt resistance
microstrain value
Loaded strain reading
( Rg *1e6)
∈s =
(( Fg *( Rc + Rg ))
UB Users Workshop
September 1818-19, 2006
Krypton Calibration
Camera Calibration
The reference bar
The reference bar is a temperature-independent, carbon fiber bar, ending
in two cones. When measuring the distance between these cones, and
comparing them with the nominal distance, the software can estimate and
compensate environment influences on the camera.
Space probe Calibration
ProbeCheck
ProbeCheck is a software package that verifies if your Space® Probe operates as
it should. It tests the serial communication, the colored LED’s, the buttons and the
internal speaker. Should you experience any problems when ProbeCheck gives no
problems, you’ll have to search the problem in an erroneous configuration,
or a software problem.
UB Users Workshop
September 1818-19, 2006
Krypton calibration – coordinate set up
Line:
a straight line through at least two points
Origin: N/A
Direction: positive from the first point towards the last point
Tolerance: applicable when more than 2 points are fitted
Intersect two or more elements: this operation intersects two or more geometric
elements and generates the intersection element. The type of the element depends on
the intersecting elements
Coordinate system
Using the measured lines the
performing the intersection for the
origin the coordinate system can be
generated with the 2 measured lines
and the intersection point
UB Users Workshop
September 1818-19, 2006
Future calibration equipment
Accelerometer calibration
Displacement calibration
UB Users Workshop
September 1818-19, 2006
Data Aquisition
UB Users Workshop
September 1818-19, 2006
Data Acquisition Systems
•
Instrument / Data flow
–
–
•
Internal conditioning
External conditioning
Analog input only systems ( No signal conditioning)
–
MEGADAC
•
–
Labview
•
–
•
External Conditioning
Pacific
•
308 conditioned and filtered channels, 8 Thermocouple channels
Digital systems
–
•
32 single ended (16 differential) analog input
Analog input (systems with signal conditioning)
–
•
128 channels analog input
Krypton
Video systems
–
Camera
•
•
Video
Still
UB Users Workshop
September 1818-19, 2006
Internal conditioning
Patch panel
DAQ patch
panel
Patch panel
Instrument
amplifier
filter
Wire
A/D
Excitation
voltage
6032 DAQ card
HUB
GPIB interface
PC
Data
Pacific
UB Users Workshop
September 1818-19, 2006
External conditioning
DAQ patch
panel
Patch panel
Instrument
amplifier
filter
Patch panel
Wire
Conditioner
Excitation
voltage
885
HUB
GPIB interface
PC
Data
MEGADAC
UB Users Workshop
September 1818-19, 2006
MEGADAC Data Acquisition System
•
Hardware ( MEGADAC )
– Chassis
– Cards ( type and quantity )
•
Connections
– Transducer connections
•
Location and interfacing
– Patch panel
UB Users Workshop
September 1818-19, 2006
MEGADAC Data Acquisition System
MEGADAC 5414 AC
UB Users Workshop
September 1818-19, 2006
AD 885 SH-1
8 analog input channels
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September 1818-19, 2006
AD 684-1
4 channels with conditioning
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September 1818-19, 2006
AD 682-1
2 channels with conditioning
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September 1818-19, 2006
AD 5884TD
8 thermocouple channels
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September 1818-19, 2006
MEGADAC channel availability
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September 1818-19, 2006
MEGADAC interconnect system
Main access panel
Patch panel
Secondary access panel
UB Users Workshop
September 1818-19, 2006
LabView
Dell Workstations – Portable DAQ
These systems (3 total) each consist of 16 channels of
National Instruments 16 bit data acquisition input channels,
4 analog output channels, and LabView 7 Express data
acquisition development system. The systems are portable
and can be used in the NEES/SEESL environment as
well as in the various teaching labs located
throughout CSEE.
UB Users Workshop
September 1818-19, 2006
Analog Signal conditioners
Temposonic conditioner
2310 conditioner
2100 conditioner
The temposonic conditioner supplies the
Excitation required for operation and
Offers a zero adjust for the output
Both the 2310 and the 2100 supply excitation
Voltage and amplification to a transducer.
The 2310 also offers filtering and an auto balance
feature. The can be used for any strain gage base
Instrument as well as potentiometers and
String pots.
UB Users Workshop
September 1818-19, 2006
Pacific Data Acquisition
System
•
Hardware ( Pacific )
–
–
–
•
Chassis
Cards ( type and quantity )
Calibration of amplifiers
Connections
–
•
Transducer connections
Location and interfacing
–
–
DAQ patch panel
Lab patch panels location and channel
count
UB Users Workshop
September 1818-19, 2006
Data Acquisition System Hardware
Model 6000 Mainframe
FEATURES
Mounting for 16 input/output modules providing up to 128
channels expandable to 4096 channels
High-speed IEEE-488 interface for control and data
Optional PCM telemetry and SCRAMNet data output
Fast hardware-based alarms with digital outputs
2M Sample ring buffer for event capture
Built-in fans and cable tray
The 6000 Mainframe has an IEEE-488 interface, digital data selector
(DDS) and 16 input/output module slots. Additional input/output
modules mount in 6001 Slave enclosures. All enclosures are for
mounting in 19-inch, EIA-310C type cabinets.
The 6000 Mainframe supports up to 31 Slave enclosures or up to
4096 channels of transducer signal conditioning or digital I/O. All
enclosures have fans providing air circulation and an integral cable
tray that routes the input and output cables from the front of the
modules to exit the rear of the enclosure.
The digital data selector (DDS) inserts digitized data acquired by
Series 6000 input modules in the output data stream according to a
user-defined scan table. It also adds a header containing a 32-bit
synchronization word, sample counter and start and trigger flags. A
1 Million word FIFO provides data output buffering during periods
when the interface or computer is unavailable to receive data. This
assures a continuous stream of uninterrupted data to the computer
or other data recording device.
The mainframe includes a ring buffer that stores up to 2 million data
samples. It may be triggered by an alarm or external TTL input to
save specified amounts of pre and post-trigger data. Optional data
outputs include PCM telemetry and SCRAMNet. SCRAMNet provides
the lowest latency for control applications.
UB Users Workshop
September 1818-19, 2006
UB Users Workshop
September 1818-19, 2006
Pacific sample rate
Note: The aggregate rate does not take into consideration the bandwidth of the card
UB Users Workshop
September 1818-19, 2006
Model 6032
4 Channel Transducer Amplifier-digitizer
FEATURES
Programmable excitation, remote sensing
Programmable input configuration
Shunt and voltage calibration
Automatic zero and balance
Gains 1 to 5,000 with 0.05% accuracy
0 to 20 kS/s ADC rate with 16-bit resolution
Continuous 10 Volt analog outputs
The 6032 input module has four channels of high performance
signal-conditioning amplifier-digitizers for strain gages and bridge
transducers. Each channel has programmable excitation with remote
sensing, voltage calibration, local or remote shunt calibration,
programmable gain instrumentation amplifier and four-pole low pass
filter. The high level outputs are multiplexed and digitized to 16 bits
then output to the 6000 data bus. In addition to the digitized output,
each channel provides a continuous analog output
The 6032 is used with quarter, half and full bridge transducers,
potentiometers and low-level voltage signals in demanding
applications such as load control. The EM option adds continuous
excitation monitoring with out-of-limit alarms. The PF option adds a
four-pole, 4 to 1,000 Hz programmable filter with 1 Hz resolution.
Voltage substitution using an external voltage standard is provided
for traceable gain calibration. Internal or external shunt calibration
is provided for transducer calibration. Transducer balance, zero and
gain calibration are automatic. Two programmable alarms
with upper and lower limits are checked for each digitized output.
The high-level analog outputs provide a means to independently
monitor or record each channel.
UB Users Workshop
September 1818-19, 2006
UB Users Workshop
September 1818-19, 2006
Model 6013
8 Channel Instrumentation Amplifier-Digitizer
FEATURES
Voltage, thermocouple and DC-LVDT
Optional thermocouple reference junction
Gains 1 to 5,000 with 0.05% accuracy
Automatic zero and gain calibration
Four-pole, low-pass filter
10 kS/s with 16-bit ADC
Programmable alarm levels
Analog outputs
The 6013 input module has eight channels, each with programmable
gain instrumentation amplifier, low pass filter and sample and hold.
The high level outputs are multiplexed and digitized to 16 bits then
output to the 6000 data bus. A ninth reference temperature channel
conditions the output of the temperature sensors in Model 6015 and
6084 thermocouple reference junctions. The 6013 provides
regulated DC power for transducers with integral electronics. Each
channel has a continuous, wideband analog output.
The 6013 is used with low-level voltages, thermocouples and
transducers like DC-LVDTs that have built-in electronics and a
voltage output. The power supply may be configured for ±12 or ±15
Volts DC.
Voltage substitution is provided for channel gain calibration utilizing an
external voltage standard. A calibration attenuator enables the voltage
standard to be used on its highest accuracy ranges and provides a
postattenuator
output for calibration and verification. Using Pacific’s PI660
software zero and gain calibration and correction are automatic.
The four-pole, low-pass filter uses an easily changed plug-in module
to set bandwidth. Either the wideband or filtered output may be
digitized and sent to the 6000 data bus. Two programmable alarms
each with upper and lower limits are checked each time the outputs
are digitized. The high-level analog outputs provide a means to
independently monitor or record each channel.
UB Users Workshop
September 1818-19, 2006
UB Users Workshop
September 1818-19, 2006
Model 6047
IRIG Time Code Reader
FEATURES
IRIG A, B and G
1 Microsecond resolution
100 mV to 10 Volt peak-to-peak input
Days, hours, minutes, seconds, milliseconds and microseconds
Simultaneous BCD and binary outputs
Time kept by disciplined clock if IRIG signal is lost
The 6047 IRIG Time Code Reader provides precision time references
for measurement data acquired by the 6000 data acquisition system.
Time is acquired from time code signals, IRIG A, B or G, applied to
the BNC input. Time data is captured by the 6000's sample clock
and can be selectively output in the multiplexed data stream with
measurement data at any available sample rate. It enables data
processing or export software to determine the measurement time of
each data point. The 6047 occupies one slot in a 6000 series
mainframe or slave enclosure.
The IRIG Time Code Reader derives a 1 MHz clock from the IRIG
signal that is accumulated to provide current time with 1 microsecond
resolution. Current time is loaded into binary and BCD
output registers (days, minutes, seconds, milliseconds and
microseconds) by the 6000's sample rate clock assuring that the time
recorded matches data sampled by all series 6000 input and output
cards.
A stabilized oscillator is disciplined to the IRIG time source. If the
time source is lost, the time reader continues to maintain and
output time, however time accuracy will be limited by the stability of
the local clock.
Using the 6000 digital I/O cards provides a means of recording the
time of event inputs or the time an event is output.
UB Users Workshop
September 1818-19, 2006
UB Users Workshop
September 1818-19, 2006
Note: the 6013 has a fixed filter of 10 Hz
UB Users Workshop
September 1818-19, 2006
Card Calibration
UB Users Workshop
September 1818-19, 2006
Instrumentation connections
• Generic instrument interface to 6032 card
• Patch panel wire layout (new lab)
• Lab interconnect layout (new lab)
UB Users Workshop
September 1818-19, 2006
Pacific Interfacing
Half bridge
Full bridge
Quarter bridge
Potentiometer / string pot
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September 1818-19, 2006
Instrument and connector layout
UB Users Workshop
September 1818-19, 2006
Location and interfacing
DAQ system
Portable DAQ
Instrument cable
Break out box plug box
Break out box
Extension cable
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September 1818-19, 2006
Patch Panel layout
UB Users Workshop
September 1818-19, 2006
Video equipment
• Video cameras
– HD
– Web
web video
• Still cameras (SLR)
UB Users Workshop
September 1818-19, 2006
Web base video
Live video and remote monitoring –
with standard TCP/IP networks
Increased memory and performance
High quality motion-JPEG images at
up to 30 frames / second
Support for Pan, Tilt, Zoom units
Built-in Web Server
HD video
For video recording of experiments, lab is equipped with one HD (High Definition)
camcorder and One SD (Standard Definition) camcorder and 12 PTZ cameras.
HD camcorder is JVC DIGITAL HD CAMCORDER JY-HD10U that has following features:
• High Definition Recording Capability:
o 720/30P (MPEG2)
o 480/60P (MPEG2)
• High Definition Playback Capability:
o 1080/60i
o 720/60P
o 480/60isn
o 480/60i 4:3
• Standard definition Recording/Playback
• 480/60i 4:3 Recording on Standard Mini DV Tape
• Lens for HD video image x10, F1.8
• Optical image stabilizer system: with on/off switch
• 1/3-inch 1.18 Mega-pixel progressive scan CCD (Single chip)
• 16:9 still image capture, MPEG-4 clip capture with SD memory card
• Real time video streaming possible via USB interface to PC
UB Users Workshop
September 1818-19, 2006
Still Cameras
3.7.1.5. Images – Still
Lab is equipped with two Digital SLR cameras: Canon EOS 10D and 20D for
still image photography of the experiments.
Table 15: 10D and 20D Specifications
EOS-20D
EOS-10D
Sensor Type 22.5 x 15.0mm CMOS w/ RGBG filter 22.7 x 15.1mm CMOS
w/ RGBG filter
Sensor Resolution (total) 8.8 mega pixels
6.5 mega pixels
Sensor Resolution (effective)
8.25 mega pixels
pixels
Lens Compatibility
EF and EF-S
EF only
mage Processor
DIGIC II
DIGIC
Connectivity USB 2.0
USB 1.1
Flash Metering
E-TTL II
E-TTL
6.3 mega
UB Users Workshop
September 1818-19, 2006
Information for user
test requirements
– Type and quantity of instruments.
•
Inventory
–
–
–
Location of point of measurement (layout drawing).
Expected full scale range of measurement.
Nomenclature of channels to be used, involving
descriptors of location.
– Test protocol and Test nomenclature
– Required output file format
• ASCII
• DaDisp
UB Users Workshop
September 1818-19, 2006
Information for user test requirements
– Type and quantity of instruments.
• Inventory
– Location of point of measurement (layout
drawing).
– Expected full scale range of measurement.
– Nomenclature of channels to be used, involving
descriptors of location.
– Test protocol and Test nomenclature
– Required output file format
• ASCII
• DaDisp
UB Users Workshop
September 1818-19, 2006
Example test
Zipper frame
Macarena Schachter
Ph.D. candidate
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September 1818-19, 2006
UB Users Workshop
September 1818-19, 2006
Zipper frame instrumentation layout drawings
Strain gage placement
Accelerometer and displacement
Krypton LED
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September 1818-19, 2006
Test predictions
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September 1818-19, 2006
Predicted full scale readings
Time history of acceleration at third floor. LA22yy, simulated, 120% PGA.
Time history of displacement first story. LA22yy, simulated, 120% PGA.
600
1
400
0.5
0
0
0
5
10
15
20
25
0
D [in]
A [IN/S ^ 2]
200
5
10
15
20
25
-0.5
-200
-1
-400
-600
-1.5
t [s]
t [s]
Time history of μstrains at midpoint of the right column. LA22yy, simulated, 120% PGA.
Time history of moment of right column at midpoint. LA22yy, simulated, 120% PGA.
150
0.005
0.004
100
0.003
50
M [kip-in]
μ strains []
0.002
0.001
0
0
5
10
15
20
25
0
0
5
10
15
20
25
-50
-0.001
-100
-0.002
-0.003
-150
t [s]
t [s]
UB Users Workshop
September 1818-19, 2006
UB Users Workshop
September 1818-19, 2006
Pacific Wiring Chart
DDAS
patch
0: 0: 0
A-1
T2T2-A-0
Beam 1st floor north bottom, location 2.
0: 0: 1
A-2
T2T2-A-1
SG1BMQNB3
Beam 1st floor north bottom, location 3.
0: 0: 2
A-3
T2T2-A-2
4
SG1BMQNB4
Beam 1st floor north bottom, location 4.
0: 0: 3
A-4
T2T2-A-3
5
SG1BMQNT1
Beam 1st floor north top, location 1.
0: 1: 0
A -5
T2T2-A-4
6
SG1BMQNT2
Beam 1st floor north top, location 2.
0: 1: 1
A-6
T2T2-A-5
7
SG1BMQNT3
Beam 1st floor north top, location 3.
0: 1: 2
A-7
T2T2-A-6
8
SG1BMQNT4
Beam 1st floor north top, location 4.
0: 1: 3
A-8
T2T2-A-7
9
SG1BMQSB1
Beam 1st floor south bottom, location 1.
0: 2: 0
A-9
T2T2-A-8
10
SG1BMQSB2
Beam 1st floor south bottom, location 2.
0: 2: 1
A-10
T2T2-A-9
11
SG1BMQSB3
Beam 1st floor south bottom, location 3.
0: 2: 2
A-11
T2T2-A-10
12
SG1BMQSB4
Beam 1st floor south bottom, location 4.
0: 2: 3
A-12
T2T2-A-11
13
SG1BMQST1
Beam 1st floor south top, location 1.
0: 3: 0
B-1
T2T2-A-12
14
SG1BMQST2
Beam 1st floor south top, location 2.
0: 3: 1
B-2
T2T2-A-13
15
SG1BMQST3
Beam 1st floor south top, location 3.
0: 3: 2
B-3
T2T2-A-14
16
SG1BMQST4
Beam 1st floor south top, location 4.
0: 3: 3
B-4
T2T2-A-15
17
SG1BMVB1
Beam 1st floor, shear rosette, bottom location1.
0: 4: 0
B-5
T2T2-B-0
#
NAME
TYPE
1
SG1BMQNB1
Beam 1st floor north bottom, location 1.
2
SG1BMQNB2
3
Location
NOTES
UB Users Workshop
September 1818-19, 2006
UB Users Workshop
September 1818-19, 2006
Web Information resource
http://nees.buffalo.edu
http://nees.buffalo.edu/docs/labmanual/SEESLLabManual.pdf
UB Users Workshop
September 1818-19, 2006
Hybrid Experiment
UB Users Workshop
September 1818-19, 2006
Thank You !
Questions ?
UB Users Workshop
September 1818-19, 2006