If you have a rotary machine that utilizes lube-oil rather than ball-bearings, you probably are used to using proximity probes to determine various properties of the shaft and its rotation. For the past 40 years, almost all of the electronics drivers for the proximity / cable probe combination have been ANALOG – custom built for the specific probe type and cable length, and custom calibrated for the type of material of the rotor.
Metrix Vibration, who designed the first 4-20 mA vibration transmitter, now also has the first DIGITAL proximity system (DPS – either a driver or transmitter). One DPS can be programmed on-site for axial, radial, or thrust, with almost any type of probe, any length of cable, any type of material, and the be precision calibrated to give you the most accurate measurement possible.
Here’s a great animation showing the power of the DPS for an external mounting on a large machine case.