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    Re: Is this a "digital sextant"?
    From: Don Seltzer
    Date: 2019 Aug 16, 15:26 -0400
    Likely a synchro resolver which is something like a motor but used as a sensor. Typically used to transmit rotary position to a second twin unit, but sometimes connected to electronics that could convert the signal to an analog voltage proportional to angle.

    Don Seltzer

    On Fri, Aug 16, 2019 at 1:18 PM Bill Lionheart <NoReply_Lionheart@fer3.com> wrote:

    Found on the online collection of the Royal Greenwich Museum https://collections.rmg.co.uk/collections/objects/256558.html  The description says the micrometer is motorized. My first thought was it was a rotary encoder rather than a motor. Any ideas?

    Bill L.

       
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