|
|
|
|
V-Link® Wireless Voltage Node
Analog input datalogging transceiver for use in high speed wireless sensor
networks.
Features and Benefits
-
2.4 GHz direct sequence spread spectrum radio is license free worldwide
-
IEEE 802.15.4 open communication architecture
-
Supports simultaneous streaming from multiple nodes to PC
-
Datalogging rates up to 2048 Hz
-
Real-time streaming rates up to 4 KHz
-
On-board memory stores up to 1,000,000 measurements
- communication range up to 70m line-of-sight, 300m with high gain antennas
-
Regulated 3 volt sensor excitation supports most analog sensors
-
On-board bridge completion resistors
-
Includes internal resistor for wireless shunt calibration
-
Low power consumption for extended use
-
Internal rechargeable battery
|
|
|
|
Description
Fast, compact, and extremely versatile, V-Link® wireless voltage nodes are
designed to operate as part of a high speed wireless sensor network.
Featuring 2 KHz sweep rates, combined with 2 Mbytes flash memory, these little
nodes pack a lot of power in a small package. With every node in the wireless
network assigned a unique 16 bit address, a single host transceiver can address
thousands of multi-channel sensor clusters.
On-board sensor excitation, bridge completion, programmable gains and offsets,
and differential and single ended inputs provide an extremely versatile sensor
interface.
The bi-directional RF communications link can trigger a sample to be logged
from 70 meters, or request real-time data to be transmitted to the host PC for
data acquisition/analysis. The frequency agile system enables simultaneous
real-time streaming from up to 16 nodes in the 2.4 GHz range.
The scaleable system architecture and programmable sensor interface enables a
new generation of wireless sensor networks. The V-LINK® is compatible with a
wide range of analog sensors, including strain gauges, displacement sensors,
load cells, torque transducers, pressure sensors, accelerometers, geophones,
temperature sensors, inclinometers, and others.
A Software Development Kit is available, which includes fully commented source
code and a compiled executable for: Microsoft® C++ 6.0, Microsoft® Visual
Studio C++ .NET 7.1, Microsoft® VB 6.0, Microsoft® VB.NET 2003, Microsoft®
VB.NET 2005 and LabVIEW® 7.1.
June 3, 2007
|
Applications
Condition-based monitoring of machines
Health monitoring of civil structures and vehicles
Smart structures and materials
Experimental test and measurement
Robotics and machine automation
Vibration and acoustic noise testing
Sports performance and sports medicine analysis
Distributed security networks
|
|
Input Channels |
Up to 8 input channels: 4 full differential, 350 Ω resistance or higher
(with optional bridge completion), 3 single ended inputs (0-3 volts maximum),
and internal temperature sensor |
|
Temperature Sensor (channel 8) |
-25˚C to +70˚C range, accuracy 4˚C |
|
Measurement Accuracy |
0.1% typical |
|
Resolution |
1 bit (0.024%) |
|
DC Bridge Excitation |
+3 volts DC at 50 mA maximum (pulsed to sensors for sample rates of 100 Hz and
below to conserve power)
|
|
Programmable Gain |
Software programmable for differential input channels from 208 to 4845 (can be
reduced with hardware resistor change) |
|
Programmable Offset |
Software programmable, maximum allowable input offset is 1.5 volts |
|
Analog to Digital (A/D) Converter |
Successive approximation type, 12 bit resolution |
|
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 |
|
Sensor event driven trigger |
Commence datalogging when threshold exceeded |
|
Real-time streaming mode |
Transmit real time data from node to PC - rate depends on number of active
channels: 1 channel - 4 KHz, 2 channels - 2 KHz, 3 channels - 1.33 KHz, 4
channels - 1 KHz, 5 channels - 800 Hz, 6 channels - 666 Hz, 7 channels - 570
Hz, 8 channels - 500 Hz |
|
Low duty-cycle mode |
Supports multiple nodes on single RF channel, total update bandwidth of 500 Hz
divided by number of nodes |
|
Synchronization between nodes |
Datalogging 100 sec 50 ppm, LDC mode time stamped at PC |
|
Sample rate stability |
Datalogging and LDC mode (2Hz to 500 Hz) 25 ppm (90 msec/hour)
LDC mode (1 Hz to 2 samples /hour) 10% |
|
Wireless Shunt Calibration |
Channels 1 to 4. Internal shunt calibration resistor 499 KΩ |
|
Radio Frequency (RF) Transceiver Carrier |
2.4 GHz, direct sequence spread spectrum, license free worldwide (2.450 to
2.490 GHz) - 16 channels |
|
RF Data Packet Standard |
IEEE 802.15.4, open communication architecture |
|
RF Programming & Downloading |
8 minutes to download full memory
|
|
Range for Bi-directional RF Link |
70 m line-of-sight, up to 300 m with optional high gain antenna |
|
Internal Li-Ion Battery |
3.7 volt lithium ion rechargeable battery, 600 mAh capacity. Customer may
supply external power from 3.2 to 9 volts |
|
Power Consumption |
V-Link node only: real-time streaming - 25 mA, datalogging - 25 mA, sleeping -
0.5 mA
External sensors: 350 Ω strain gauge - 8 mA, 1000 Ω strain gauge -
3 mA (add sensor consumption to above to calculate total power consumption) |
|
Operating Temperature |
-20 to +60˚C with standard internal battery and enclosure, extended
temperature range optional with custom battery and enclosure. -40 to +85˚C
for electronics only |
|
Dimensions |
88 mm x 72 mm x 26 mm including mounting tabs and screw terminal block input
connector (board only 72 mm x 65 mm x 24 mm). For dimensioned print go to
www.microstrain.com |
|
Weight |
97 grams |
|
Case |
ABS plastic |
|
Software |
Agile-LinkT Windows XP® compatible
|
|
PC Comm |
Serial port, 115.2 kBaud |
Patents Pending
|
|
General Documentation
Technical Notes
Mechanical Prints
FAQ's
|
Please enter your Contact information. When finished, click SUBMIT button at
bottom of page.
To better serve your needs, the fields marked * indicate required information.
V-Link® Starter Kits
|
 |
V-Link Wireless Voltage Starter Kit
V-LINK-2400-SK2
Includes
(2) V-Link-2400-M, (1) USB base station, (1) USB cable, (1) V-Link power supply, (3) antennae, Windows XP compatible software
Part Number: 6312-0042
Online price: $2595.00
|
MicroStrain has identified your location as
United States. If this is incorrect please
contact sales at 802-862-6629 or sales@microstrain.com
|
 |
V-Link Wireless Voltage Starter Kit
V-LINK-2400-SKA
Includes
(1) V-Link-2400-M, (1) Analog output base station, (1) V-Link power supply, (1) Analog base station power supply, (2) antennae, Windows XP compatible software
Part Number: 6312-0011
Online price: $2395.00
|
MicroStrain has identified your location as
United States. If this is incorrect please
contact sales at 802-862-6629 or sales@microstrain.com
|
|
|
|
|
|
