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|     Written By: Tom Bonar     |     DatePosted: 07-20-2012     |
HRXL-MaxSonar-WR Tank Test

Tank sensors are an important part of industrial automation. MaxBotix Inc., recently performed a liquid level measurement test at our facility. This test ran from July 13, 2012 until July 16, 2012. The test was conducted by filling a bin with water and recording readings from the ultrasonic sensor using the serial connection while the liquid was allowed to drain.

The graph below shows the range reported by the sensor in millimeters as the tank was drained. The plotted graph is the first 100,000 readings that were reported.

Readings were very stable, rarely changing by more than 1-mm (except where secondary reflections from the sides of the tank caused acoustic phase cancellation and readings from the tank sensor were
+/- 2mm). The raw data collected during the test is available to the public here: Tank Sensor Draining Test.

The HRXL-MaxSonar-WRM sensors are the recommended ultrasonic sensors for tank level measurement. The MB7369 and MB7389 sensors ignore smaller targets and only reports the range to target with the largest acoustic return. The Most-Likely filter is designed to report the distance to the largest acoustic return while ignoring smaller targets. When targets are of similar amplitude reflections, preference is given to the closest target.

Pictures of our test set up can be seen below.

 
 
 
Author: TB & KO  Date: 03/26/2014
UCXL-MaxSonar-WR
The condensation issue in tanks and other moisture-prone environments is solved!
The SCXL‑MaxSonar sensor series, based on our popular HRXL-MaxSonar-WR product line, features a self-cleaning protocol gently heats the face of the transducer, atomizing any condensation to prevent moisture buildup.
Author: Tony Szczodroski  Date: 02/22/2014
HRUSB-MaxSonar-EZ 3d CAD pictures, MaxSonar CAD Files
Good news Designers – we now have downloadable 3D CAD models (in multiple formats) of our ultrasonic sensors! Designers and
Engineers can utilize these models for System integration design or free designing, and will save you time, money, and resources.
Author: Kurt Olsen  Date: 02/13/2014
UCXL-MaxSonar-WR
Our most popular sensor is now available in a new design which is physically shorter than any of our current outdoor sensors.
Our new UCXL‑MaxSonar‑WR series sensors are flexible, customizable products.
Author: Tom Bonar  Date: 12/04/2013
FIRST Robotics 2014, MaxBotix, MaxSonar
MaxBotix Inc., would like to welcome back all returning students to this years' F.I.R.S.T® competition. Last year we had an enjoyable
time watching teams creating robots during Ultimate Ascent competitions. We are excited to see what this years competition holds and the creativity that will be shown by all the students.
 
 
 
Author: Tom Bonar     Date:06/18/2012
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