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
Legal Disclaimer Notice
Vishay Precision Group, Inc.
Disclaimer
ALL PRODUCTS, PRODUCT SPECIFICATIONS AND DATA ARE SUBJECT TO CHANGE WITHOUT NOTICE.
Vishay Precision Group, Inc., its affiliates, agents, and employees, and all persons acting on its or their behalf
(collectively, “VPG”), disclaim any and all liability for any errors, inaccuracies or incompleteness contained herein or in
any other disclosure relating to any product.
The product specifications do not expand or otherwise modify VPG’s terms and conditions of purchase, including but
not limited to, the warranty expressed therein.
VPG makes no warranty, representation or guarantee other than as set forth in the terms and conditions of purchase.
To the maximum extent permitted by applicable law, VPG disclaims (i) any and all liability arising out of the
application or use of any product, (ii) any and all liability, including without limitation special, consequential or
incidental damages, and (iii) any and all implied warranties, including warranties of fitness for particular purpose,
non-infringement and merchantability.
Information provided in datasheets and/or specifications may vary from actual results in different applications and
performance may vary over time. Statements regarding the suitability of products for certain types of applications
are based on VPG’s knowledge of typical requirements that are often placed on VPG products. It is the customer’s
responsibility to validate that a particular product with the properties described in the product specification is suitable for
use in a particular application. You should ensure you have the current version of the relevant information by contacting
VPG prior to performing installation or use of the product, such as on our website at vpgsensors.com.
No license, express, implied, or otherwise, to any intellectual property rights is granted by this document, or by any
conduct of VPG.
The products shown herein are not designed for use in life-saving or life-sustaining applications unless otherwise
expressly indicated. Customers using or selling VPG products not expressly indicated for use in such applications do
so entirely at their own risk and agree to fully indemnify VPG for any damages arising or resulting from such use or sale.
Please contact authorized VPG personnel to obtain written terms and conditions regarding products designed for such
applications.
Product names and markings noted herein may be trademarks of their respective owners.
Copyright Vishay Precision Group, Inc., 2014. All rights reserved.
Document No.: 63999
Revision: 15-Jul-2014
www.vpgsensors.com
1
/20180930715430_pdf/pg_0001.png)
MicroPython Open Source section
京公网安备 11010802033920号
EEWORLD/20180930715430_pdf/1.png)
/20180930715430_pdf/2.png)
/20180930715430_pdf/pg_0002.png)
