RST’s MEMS In-Place Tilt Meters measure tilt in either one or two axial planes perpendicular to the surface of the base plate. The digital bus allows several tiltmeters to be daisy-chained on a single cable up to 1200 meters in length.
Adding the RST MEMS Tiltmeter
You will need to add the device to the THREAD via the connectivity page.
Navigate to the Network Module.
Press the button directly on a THREAD to add a Device to it. If your THREAD does not appear here, you may still need to Add Your THREAD as a Connection.
You may also add a device from the button in the Devices & Sensors Section
Begin by typing in "RST Tiltmeter" and select the name once it autocompletes in the search box
Select the THREAD communication port that the device is plugged into, Device 1 or 2.
Select the Segment Information by clicking Edit Configuration and add in the tiltmeter serial number here. If you are bussing multiple sensors select the number of segments and add all serial numbers here.
Press to write the settings. Your device should now connect to sensemetrics indicated by a green icon
To start viewing all Tiltmeter calculations, certain setup parameters will need to be entered. Below is a list of the modifiable parameters and the metrics it will affect.
Navigate to the sensor configuration page of the Tiltmeter you wish to modify.
REFERENCE DATE - ∆
The reference date will specify the first date used when calculating delta metrics indicated with the ∆
Specify the Reference date to use any ∆ Delta calculations
Note: If no reference date is chosen, delta calculations will automatically use the first data point in your time range selected as the reference date.
DEVICE AZIMUTH - Northing/Easting
The Tiltmeter does not inherently know North/East. In order for North/East to be correctly represented, you will need to specify the Device azimuth. This is done by measuring the angle from North to the B axis in a clockwise direction.
Specify the Sensor Azimuth to use Northing/Easting calculations
STRUCTURE AZIMUTH - Transverse/Longitudinal
This field will allow you to orient the Transverse/Longitudinal Axis in any desired direction. It is useful for finding movement in the direction of a specific structure or any point of reference. See the Structure Azimuth Section on instructions on how to properly set it up.
Specify the Structure Azimuth to use Transverse/Longitudinal calculations
GAUGE LENGTH - X/Y
Enter the Gauge Length or the Height of the structure from the base to top of the structure. This will use a trig calculation with the Tilt X/Y angle to create a X/Y Vector at the top of the structure.
Specify the Structure Height to use X/Y calculations and allow vectors in Map View.
The X/Y Axis displayed in sensemetrics will always be fixed relative to the Tiltmeter's A and B.
X = A+
Y = B+
For the rest of the common sensor parameters, see the Sensor Configuration Article.
Please sign in to leave a comment.