Batteries
FP Aude
Hello
I use a LEICA Disto X310 which has been modified to take distance, slope and azimuth measurements. (It's Swiss by origin, but no longer manufactured currently, except by China which bought the patents, but it's incompatible in some areas) It is rechargeable via USB. The battery is non-magnetic and as a precaution and for accurate analyses, the whole is tested and corrected each time it is used via "Topodroid".
My question is simply the use of 18650 batteries which are magnetic and disturb the other elements of the Caveaatron. It is true that it is advisable to calibrate the device often, but magnetic batteries systematically distort the data because they are included in the system.
Thank you for your answers
Bonjour,
J’utilise un LEICA Disto X310 qui a été modifié pour prendre les mesures de distances, pente et azimut. (C’est Suisse d’origine, mais plus fabriqué actuellement, sauf par la Chine qui a racheté les brevets, mais c’est incompatible sur certain domaines) Il est rechargeable via un USB. La batterie est amagnétique et par précaution et pour des analyses justes, l’ensemble est testé et corrigé à chaque utilisation via « Topodroîd ».
Ma question est tout simplement l’usage de batteries 18650 qui sont magnétiques et perturbes les autres éléments du Caveaatron. C’est vrai qu’il est conseillé d’étalonner l’appareil souvent, mais les batteries magnétiques fausses les données de façon systématique car elles sont incluses dans le système.
Merci de vos réponses
Rag Rastin
State that something is Swiss made must be good is absolute nonsense. I have been corrected from trusting that state while I was working for Swiss tech company producing machines labelled as "Swiss made" where 99% of components where from china ;)
From my experience most of LEICA Disto X310 mods currently used are dramatically bad calibrated. Or not even calibrated once since bought. I also have seen some compare test made by expert Marco Corvi. Where there Distox even properly calibrated was far below in accuracy to comparable products:
https://ia801800.us.archive.org/32/items/disto-xsap-bric-20200302/DistoXSapBric-20210329.pdf
As from design Cavatron is comparable in accuracy to BRIC4 or even BRIC5, I have seen some compares test but cant find them now. It also shares same RM3100 Magnetometer.
And at last to answer your question: Yes li-ion batteries are magnetic, but the interference is so little it may be negable. Especially when you finish build first step is calibration in aspect to avoid interference with internal components like batteries. The discharge process is not dramatically changing the magnetic influence of battery so it may be neglected. Most of the time you would use your cavatron between 100-80% charge.
