G-Link® -MIL

Submitted by scott on Thu, 11/10/2011 - 12:47

G-Link^® -MIL

Hardened Extended Range Synchronized Wireless Accelerometer Node

Overview

G-Link® -MIL, a ruggedized wireless accelerometer node, is EMI/EMC qualified to MIL-STD-461F, and designed for use in the most hostile environments. Combining triaxial accelerometers, embedded processing, wireless communications, and precision timekeeping, G-Link®- mXRS wireless nodes operate within a fast, synchronized, scalable network of wireless sensor nodes located up to 2 km from our WSDA® -MIL. G-Link® -MIL nodes include an internal replaceable battery pack and measure accelerations, vibrations, tilt angles and temperature.

Using exclusive MicroStrain® beaconing protocols to synch every sensor node’s precision timekeeper, WSDA®-MIL coordinates and receives data collection from all MicroStrain extended range, synchronized (mXRSTM) wireless sensor nodes. Users can easily program each node on the scalable network for simultaneous, periodic, or burst mode sampling with MicroStrain® Node Commander® software, which then automatically configures network radio communications to maximize the aggregate sample rate. The system offers a robust, flexible local interface for data storage, viewing and configuration.

Microstrain G-Link® -MIL Wireless Sensor Node

Applications

modal testing
inclination & vibration testing and control
security systems and fence monitoring
assembly line testing with “smart packaging”
condition-based maintenance and structural health monitoring
smart machines, smart structures, & smart materials
track and balance for fixed and rotary wing aircraft

support for hundreds of simultaneous sampling wireless sensor nodes
node to node synchronization up to ±32 microseconds
EMI/EMC qualified to MIL-STD-461F
flight certified and qualified to MIL-STD-810F and MIL-STD- 461F
ultra-stable on-board precision timing reference of ± 3 ppm over industrial temperature range
extended wireless communication range to 2km
ow power consumption for extended use
simple bolt-through design for quick, easy mounting

On-board accelerometers	triaxial MEMs accelerometers, Analog Devices AD22293 (± 2 g ) or ADXL210 (± 10 g )
Accelerometer range	± 2 g or ± 10 g
Measurement accuracy	10 m g
Resolution	1.5 m g RMS (2 g ), 9 m g RMS (10 g )
Temperature sensor	-40 ˚C to 70 ˚C range, typical accuracy ±2 ˚C (at 25 ˚C)
Anti-aliasing filter bandwidth:	-3 dB cutoff at 500 Hz (factory adjustable)
Analog to digital (A/D) converter	successive approximation type, 12 bit resolution
Sensor event driven trigger	commence datalogging when threshold exceeded
Synch sampling	supports many nodes on single RF channel, from 1 sample per hour to 512 Hz
Synchronization between nodes	± 32 µsec @ 10 second beacon interval
Sample rate stability	± 3.5 ppm
Data storage capacity	2 megabytes (approximately 1,000,000 data points)
Data logging mode	log up to 1,000,000 data points (from 100 to 65,500 samples or continuous) at 32 Hz to 2048 Hz
Radio frequency (RF) transceiver carrier	2.4 GHz direct sequence spread spectrum, license free worldwide (2.405 to 2.480 GHz) – up to 16 channels, radiated power programmable from 0 dBm (1 mW) to 20 dBm (100 mW)
RF data packet standard	IEEE 802.15.4, open communication architecture
RF data downloading	8 minutes to download full memory
Range for bi-directional RF link	2 km line-of-sight in extended range mode; 70 m in standard range mode
Battery	internal replaceable 2.4 AHr primary AA battery pack
Power consumption	synchronous sampling (128 Hz) - 2.4 mA, datalogging- 25 mA, sleeping - 0.1 mA
Operating temperature	-40 ˚C to +85˚C
Maximum acceleration limit	500 g
EMI/EMC qualification	MIL-STD-461F RE102 radiated emissions, RS103 radiated susceptibility
Environmental qualification	MIL-STD-810F
Enclosure	MIL-DTL-5541 Aluminum, NP3 (Electroless Nickel / Teflon) Plating
Dimensions	79 mm height x 54 mm diameter
Weight	222 g
Software	Node Commander® Windows XP/Vista/7 compatible
Compatible base stations	USB, RS-232, Analog, WSDA®

General Documentation
- G-Link MIL Datasheet

How To Order

To discuss configuration for your specific system requirements, please contact sales at sales@microstrain.com or call 802-862-6629.

For large quantity orders or OEM discussions, please contact mirobinson@microstrain.com.

G-Link® -MIL

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G-Link^® -MIL