MM120-001633

StudentDAQ Student Strain Gage Data Acquisition Device FEATURES • Single-channel strain gage data acquisition • Hardware and software support for full-bridge, halfbridge, 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 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 3-Wire Quarter Bridge MM01-120 120 Ω MM01-350 350 Ω MM01-1K 1000 Ω 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) 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. 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) Block Diagram StudentDAQ 1 8 1 8 Single Channel Data Acquisition Device +2.5 V P+ 1 kΩ + S+ Strain Gage Document No.: 11375 Revision: 14-Feb-2017 Dummy 1 kΩ P– S– – 24-bit ADC uController USB GUI Software For technical questions, contact mm@vpgsensors.com 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 FRONT 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. 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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