Toughts about Rangefinder

Hello, guys

I'd like to know what are your experiences using Lightware and TeraRanger rangefinders.

I know they have different sizes and different operational voltages also.

But which of them is more precise and realible for landing?

I'm always flying over trees and grass, so using a sonar is not something I am considering.

Thanks for your thoughts.

You need to be a member of diydrones to add comments!

Join diydrones

Email me when people reply –

Replies

  • We are having difficulties getting SF/11c to work properly with Pixhawk.  When plugged in we are getting oscillating altitudes in loiter and alt hold.  These variations in altitude are quite abrupt and are around 5-10 meters in variation.  If we unplug the rangefinder, bird flies fine.  Plug it back in and it bounces.  We have double and triple checked parameters but cannot narrow down issue.  Anyone have any ideas?  Thanks. 



  • Olivier said:

    +1

  • I've been flying Lightware's SF11 series on Pixhawk 1 on copter. A breeze to install, five minutes and absolutely plug and play with a  few clicks to configure with Ardupilot and Mission Planner. Works flawlessly, including automatic switch to barometer when out of range at higher altitude. Alt hold mode a foot off the ground at good speed on up and down sloping terrain no problem.

  • @Pedro - The expert on this subject is Dr Andrew Tridgell. You can find him on this forum here or drop a question onto the ArduPilot development forum here.

  • Hello!

    Do you know someone who has used it to precisely land fixed wings? Do you know their experience?

    Thanks in advance!

    Laser Developer said:

    Hi Pedro - I work for LightWare and we supply lots of SF11/C and SF10/A rangefinders for use during final approach and landing. These products measure trees and grass reliably.

    Unfortunately I can't comment about other products to give you a comparison, but perhaps you could take a look at Cala's blog here to get an independent review of the SF11/C.

  • Hi Pedro - Greg here from Terabee, makers of the TeraRanger sensors. We also have many drone users using our sensors as a precision altimeter. What they tell us they like is the low weight (only 8g) and small size and the plug and play simplicity, as well as the fast update rates (upto 1000 times a second in Fast mode). Trees and grass etc are no problem and in fact our 3 degree FoV can often be an asset in these situations. A number of use case videos can be found here. - Clearly we are happy to help with any questions you may have. Contact details are on the contact page of www.teraranger.com. Best regards. Greg.

  • Hi Pedro - I work for LightWare and we supply lots of SF11/C and SF10/A rangefinders for use during final approach and landing. These products measure trees and grass reliably.

    Unfortunately I can't comment about other products to give you a comparison, but perhaps you could take a look at Cala's blog here to get an independent review of the SF11/C.

This reply was deleted.

Activity

DIY Robocars via Twitter
RT @IndyAChallenge: Here is the ROS-based small-scale vehicle platform showing the ROS Visualization (Rviz) screen with multiple ROS nodes…
6 hours ago
DIY Robocars via Twitter
RT @IndyAChallenge: Here is Black & Gold Autonomous Racing's simulated racecar running a lap @IMS and showing the team's code overtaking ot…
6 hours ago
DIY Robocars via Twitter
6 hours ago
DIY Robocars via Twitter
RT @donkey_car: New Maintainers! Donkey Car 4.0 and more! Here is our September Newsletter! https://donkeycar.substack.com/p/september-donkey-newsletter?r=2ji2t&utm_campaign=post&utm_medium=web&utm_source=copy
7 hours ago
DIY Robocars via Twitter
RT @chr1sa: Kinda cool that we just hit 2,500 members of our Bay Area self-driving car racing league. More than 10k globally. Fast, cheap…
7 hours ago
DIY Robocars via Twitter
RT @chr1sa: Our next @DIYRobocars virtual AI car race is next Saturday. Compete from home using the @donkey_car simulator -- no physical ca…
yesterday
DIY Robocars via Twitter
RT @RoboticMasters: Students from @Sydney_Uni working hard on improvements and changes to @donkey_car simulator. @diyrobocars @adafruit…
yesterday
DIY Robocars via Twitter
Practice virtual race this Saturday; the real thing will be on Oct 3 https://www.meetup.com/DIYRobocars/
Wednesday
DIY Robocars via Twitter
Wednesday
Derrick Davies liked lisa TDrones's profile
Wednesday
DIY Robocars via Twitter
Sep 21
DIY Robocars via Twitter
RT @SahikaGenc: AWS DeepRacer & Hot Wheels Track https://youtu.be/4H0Ei07RdR4 via @YouTube
Sep 14
DIY Robocars via Twitter
Sep 8
DIY Robocars via Twitter
RT @davsca1: We are releasing the code of our Fisher Information Field, the first dedicated map for perception-aware planning that is >10x…
Sep 8
DIY Robocars via Twitter
RT @SmallpixelCar: How this works: 1)object detection to find cones in single camera image, 30 frames/sec on @NVIDIAEmbedded Xavier. 2)comp…
Sep 8
DIY Robocars via Twitter
RT @SmallpixelCar: Use two color cones to guide the robocar. No map needed, on onsite training needed. Just place the cones and it will fol…
Sep 7
More…