StudentDAQ
Student Strain Gage Data Acquisition Device
FEATURES
• Single-channel strain gage data acquisition
• Hardware and software support for full-bridge, half-
bridge, and quarter-bridge circuits
• Built-in bridge completion
• 3-wire strain gage connection
• 80-Hz data rate
• Fixed excitation of 2.5 V
• Input range of ±16,000 µε
• Powered via the USB interface
• Intuitive, user-friendly software
• No calibration is needed
• Units: µε, mV/V, and engineering units (user defined)
• Time stamped recorded data
SPECIFICATIONS
Input Connections
Type:
RJ-45 Modular
Quantity:
1
Bridge Configurations
Types:
Quarter, half, and full bridges
Internal bridge completion:
Quarter bridge: 120 Ω, 350 Ω, 1000 Ω
Half bridge: 1000 Ω
Data Conversion
A/D converter:
24-bit delta-sigma with a low-noise amplifier
(gain of 50)
Measurement Range
Strain range:
±16,000 µε at GF=2.000
Resolution:
1µε (GF = 2.000)
Accuracy:
1% of reading (GF = 2.000)
Balance Control
Type:
Software
Control:
Manual
Bridge Excitation
Value:
2.5 VDC nominal
Control:
Fixed
Communication Interface
Universal serial bus (USB)
Case material:
Plastic
Size and Weight:
1.0 W x 1.0 H x 3.5 L inches (25.4 x 25.4 x 88.9 mm)
0.05 lb (0.023 kg)
DESCRIPTION
The Student Data Acquisition Device is a single-channel,
USB-powered measurement device for use with resistive
strain gages. Internal bridge completion supports full-,
half-, and quarter-bridge configurations.
Model
MM01-120
MM01-350
MM01-1K
3-Wire Quarter Bridge
120
Ω
350
Ω
1000
Ω
This device is designed for use in applications where
a convenient, low-cost, easy-to-use strain gage
measurement is required. It is ideal for classroom
environments or gage installation verification.
Operation of the StudentDAQ is performed with
commands sent via a USB connection. User-friendly
application software is provided to control the
StudentDAQ with a Microsoft
®
Windows
®
-based personal
computer. Complete source code, written in National
Instruments
®
LabVIEW
®
is provided. A .NET interface is
also included.
Block Diagram
Single Channel Data Acquisition Device
+2.5 V
P+
PIN
1: P+
2: D
3: S–
4: P–
5: P+
6: S+
7: P–
8: S–
TOP
quarter bridge/half bridge
quarter bridge
quarter bridge/half bridge
half bridge
full bridge
full bridge
full bridge
full bridge
StudentDAQ
1
8
1 kΩ
S+
+
–
24-bit
ADC
uController
USB
GUI Software
Strain
Gage
Dummy
1 kΩ
P–
S–
FRONT
1
8
Document No.: 11375
Revision: 14-Feb-2017
For technical questions, contact
mm@vpgsensors.com
www.micro-measurements.com
1
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Copyright Vishay Precision Group, Inc., 2014. All rights reserved.
Document No.: 63999
Revision: 15-Jul-2014
www.vpgsensors.com
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