Nicholas Charles Lee

4 Questions 30 Answers 0 Followers

Questions related from Nicholas Charles Lee

What control algorithm for position control of BLDC gimbal motor?

I have a brushless gimbal motor (with 12N14P windings) whose rotor shaft position is measured by means of a high-resolution absolute optical encoder. (The motor has no hall-sensors) The amount of...

18 July 2018 9,321 11 View

Can you recommend a supplier of 'Giant' Electrorheological Fluid?

I am looking for a suppier of electrorheological Fluid exhibiting the "Giant Electrorheological" (GER) phenomena, but have been unable to locate one. (NB: I am based in the UK) Typically the GER...

16 May 2013 2,199 5 View

Can you help me choose an Electrorheological fluid?

I have an application requiring relatively fast acting(10 to 100Hz) electrically activated fluidic valves that open and close 1mm diameter holes in a 1.6mm thick insulating plate. I am hoping to...

09 April 2013 9,733 0 View

Can you help me to choose the right soft magnetic materials to use in a miniature solenoid?

I am trying to design an efficient DC solenoid which is only 3mm across, and 5mm long. I need to choose the material for the central plunger, which would be 1mm in diameter. I also need to choose...

22 March 2013 5,247 20 View