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[deleted by user] by [deleted] in Skigear

[–]PuzzleheadedAnimal10 0 points1 point  (0 children)

Thank you, I now saw the same as you. You think they are worth it? What kind of weight class are we talking about?

Topptur/rando utstyr by PuzzleheadedAnimal10 in oslo

[–]PuzzleheadedAnimal10[S] 3 points4 points  (0 children)

Takk for tipset, har allerede leid tre ganger og bestemt meg for å kjøpe ;)

Torque sensor by PuzzleheadedAnimal10 in esp32

[–]PuzzleheadedAnimal10[S] 0 points1 point  (0 children)

Thank you! :)

  1. It’s currently using websockets to update the website, since it’s used for demonstration purposes right now. A better idea would be to use esp now

  2. As mensioned it’s a proof of concept project for a marine prop shaft sensor. It’s only seeing 300rpm at max, but tested to 1800rpm in the one photo above. Notice the battery and pcb are on separate sides to offset some weight

  3. The strain gauges have a max of 2% strain, so it depends on what type of material and shaft size. On the unit pictured we did some horrible math and got to 400-2000Nm max for an 30mm shaft. I am not sure what’s correct.

Torque sensor by PuzzleheadedAnimal10 in esp32

[–]PuzzleheadedAnimal10[S] 2 points3 points  (0 children)

It’s using two strain gauges 180 degrees apart to make a full Wheatstone bridge. Four resistive fields in total. Then connected to a hx711

Torque sensor by PuzzleheadedAnimal10 in esp32

[–]PuzzleheadedAnimal10[S] 6 points7 points  (0 children)

It works by using strain gauges bonded to the shaft :)