User's Manual
Table Of Contents
- Welcome
- Supported Firmware and Software Versions
- Guide to Relevant Documents
- Overview
- Installation
- Starter Kits, Modules and Options
- Common Terms
- Operation
- Single Ended Input Channel
- Temperature Sensor
- Terminal Strip
- Radio and Antenna
- Node Addressing
- Sample Duration Calculations
- Time Stamping
- Power
- Power Profile
- Operating Temperature
- Sampling Rates
- Datalogging Memory
- Factory Calibration and Testing
- General Specifications
- Mechanical Drawing
- Electrical Block Diagram
- Software
- FCC (United States) Certification
- IC (Industry Canada) Certification
- Support
- Terms and Conditions
- Appendix 1: Host-to-Base Station Communication
- Appendix 2: Datalogging with Agile-Link™ software
- Appendix 3: Streaming with Agile-Link™ software
- Appendix 4: Low Duty Cycle with Agile-Link™ software
- Appendix 5: High Speed Streaming with High Speed Streaming s
- Appendix 6: Bridge Completion Resistors
MicroStrain, Inc.
Overview
The SG-Link® OEM is a wireless strain node and is a specialized member of
MicroStrain’s Agile-Link™ wireless data acquisition system. The Agile-Link™ system
comprises 3 main components: 1) wireless sensor nodes which acquire and transmit
strain, voltage, temperature, acceleration and/or other sensor data, 2) base stations which
receive and pass the data to a host, and 3) software which operates the system.
The SG-Link® OEM provides two external
measurement channels, being 1) a differential
input channel (strain channel) primarily designed
to support strain gauges of 350 ohm resistance or
greater, and 2) a single ended input channel
(analog channel) designed to support 0-3 volt
sensors. The combination of the two
measurement channels supports a wide range of
Wheatstone bridge type and analog sensors
including strain gauges, displacement sensors,
load cells, torque transducers, pressure sensors,
accelerometers, geophones, temperature sensors and inclinometers. The SG-Link® OEM
also has an on-board temperature sensor.
The SG-Link® OEM employs a 12 bit A/D converter to digitize the voltage on the
differential input, single ended input and temperature channels. The digital data is passed
to the on-board microprocessor, processed with the embedded algorithm, and in turn
either passed to its radio for immediate transmission or saved to the 2MB on-board flash
memory for later download.
Host computer software displays the data, provides analysis tools, records the data to file
and allows the user to configure and actuate the system. The SG-Link® OEM may also
be used with MicroStrain’s Analog base station for stand-alone applications.
The SG-Link® OEM may be remotely deployed up to 70 meters (line-of-sight) from its
base station, and 300 meters or more with added antenna options.
The SG-Link® OEM may be directly powered by external batteries, external regulated
power supply or other external.
Multiple SG-Link® OEMs may be deployed around a single base station, each
transmitting its data to the base station coincidentally, with the data being passed on to
the software for aggregation.
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