I am 100% sure that one of the outputs from the yoke is just a pulse either going out from a sensor coil or a simple mechanical microswitch. A simple reverse engineering of the input connectors to the dekatron box should lead you to the right one. I can lend a hand if you can get hold of simple schematics or a description of what you see. Regards Gastón
On Wednesday, December 11, 2019 at 7:02:23 PM UTC-3, Bill Notfaded wrote: > > That's helps a lot X you explained it well. I was trying to imagine how > the disc enabled adjusting the test somehow because it's obviously > graduated. I wish it had a test mode... I don't see anything like that on > it... I was thinking to simulate turning the magnetic field so you could > get the dekatrons going without having to spin the axis potentially fast or > with force. > > Thanks, > > Bill > > On Wed, Dec 11, 2019, 7:38 AM GastonP <[email protected] <javascript:>> > wrote: > >> It is a dynamometer, and as such, it measures force. In this case, >> torque. It is based in the electromagnetic brake principle and dynamic >> balance and all of this is done to measure the force of a motor or other >> rotating device in a dynamical way. >> Probably there is an electromagnet either in the box behind the dial or >> within the thick axis. The axis rotates at a speed imposed by the DUT >> (Device Under Test), which we cannot know what it was but we can assume it >> was some kind of motor/engine. >> The electromagnet generates a field that is induced in the axis/disc, >> which in turn generates a counterfield that attracts the axis to the >> electromagnet. This results in a braking effect. Changing the current >> through the electromagnet changes in turn the amount of force. The disc >> must have some kind of spring behind which is calibrated in force units. >> When the disc is in the "0" position, the force imposed by the rotating >> axis equals the one in the disc, thus balancing the system. One reads the >> force as a proportion to the magnetic field / current through the >> electromagnet. >> I hope I could explain it well, but the principle is really simple. The >> idea of using a magnetic brake is that there are few losses in the system >> (no friction as in a mechanical brake) and the calibration is easier and >> last a lot longer. >> >> On Wednesday, December 11, 2019 at 2:51:31 AM UTC-3, Bill Notfaded wrote: >>> >>> Maybe it's not the wheel but the post on the axis and the wheel has some >>> adjustment on it? >> >> -- >> You received this message because you are subscribed to a topic in the >> Google Groups "neonixie-l" group. >> To unsubscribe from this topic, visit >> https://groups.google.com/d/topic/neonixie-l/Q0d0fpt3DWs/unsubscribe. >> To unsubscribe from this group and all its topics, send an email to >> [email protected] <javascript:>. >> To view this discussion on the web, visit >> https://groups.google.com/d/msgid/neonixie-l/2d8f7026-ea68-4fcf-9d9f-0def00dfa145%40googlegroups.com >> >> <https://groups.google.com/d/msgid/neonixie-l/2d8f7026-ea68-4fcf-9d9f-0def00dfa145%40googlegroups.com?utm_medium=email&utm_source=footer> >> . >> > -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/ee7eb452-c12d-4cdb-93b9-93341307bf54%40googlegroups.com.
