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Wireless Sensor Networks

Wireless Torque Monitoring for Unmanned Rotorcraft Flight Test Applications


Energy Harvesting Helicopter Rotor HUM System Development

Helicopter transmission health and usage monitoring is mature and operating on many helicopters worldwide. Attention is now being given to improving the monitoring of rotor systems, in order to 1) further enhance safety by the early detection of incipient failures, and 2) reduce the maintenance burden by minimising or ultimately replacing high-frequency on-aircraft rotor component inspections.

I have connected my WSDA -1000 directly to my PC, why can't I communicate with it?

The most common cause of this issue is that the customer connects the WSDA directly to the PC via the ethernet cable without setting the WSDA -1000 up for Static IP first.  If you refer to page 3 of the quick start guide http://files.microstrain.com/WSDA-1500_QSG_(8501-0057).pdf

I have connected my WSDA -1000 directly to my PC, why can't I communicate with it?

The most common cause of this issue is that the customer connects the WSDA directly to the PC via the ethernet cable without setting the WSDA -1000 up for Static IP first.  If you refer to page 3 of the quick start guide http://files.microstrain.com/WSDA-1500_QSG_(8501-0057).pdf

Why does the time-stamp look wrong in Microsoft Excel?

Excel displays our time stamp incorrectly.  If you were to open the data file in Notepad you would see the correct time format.  To correct the data in Excel, Highlight all of column A, right click on the highlighted region and select Format Cells.  Under the Number tab select Custom, Scroll to the bottom of the list that appears and select “m/d/yyyy h:mm”.  You will need to add “:ss.000” to the end of this, so it looks like this “m/d/yyyy h:mm:ss.000” .  Setting the cells to this will give you the highest resolution that Excel can show.

Can I change the time zone of data collected?

We use Universal Coordinated Time (UTC) to collect data on all of our devices.  There is no provision to set the time to a local time zone. 

Which Integrated Electronics Piezoelectric (IEPE) accelerometers work with the IEPE-Link-LXRS?

The IEPE-Link™ -LXRS® accepts inputs from most IEPE sensors using the industry standard 10-32 mini-coaxial connector and 2.3 mA constant current excitation.

 

 

Does the ENV-Link Mini support wind speed and wind direction indicators?

Yes. The ENV-Link-Mini provides support for wind speed and wind direction indicators.

An example of instruments that have been proven are:

Is there a self-test for the backplane of the analog base station?

There is no self-test function on the WSDA-Base-101 Analog Base Station to test the analog outputs.

However, each channel can be tested by using whatever wireless node you have.

What is the Float function in the analog pairing screen of Node Commander?

In Node Commander software, on the analog pairing screen, there is a check box for "Float". What is the function of this check box?

If the node is configured to send data to the base station in floating point mode, you need to enable this checkbox and set the 0-3 volt scaling.

 

 

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