On 8/10/20 12:17 PM, Christian Kennedy via cctalk wrote: > > > On 8/7/20 4:34 PM, Warner Losh via cctalk wrote: > >> The OCO looks nice. Timing gear maybe? > > Looks like a mid 70's - early 80's three-axis fluxgate magnetometer. > The precision of a fluxgate is a direct function of the stability of the > frequency source that is driving the drive winding, so an OCXO makes > perfect sense. > > My offhand guess would be oil and gas exploration. >
I recall that the petroleum industry was among the earliest of adopters of NMR logging, hailing back to the late 1950s/early 1960s for use in oil exploration. Medical use was much later. --Chuck
