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Explore Scientific TDM Telescope Drive Master Ver. 2: Encoder and Electronics Set |
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Explore Scientific TDM Telescope Drive Master Ver. 2: Encoder and Electronics Set
Designed to attach to popular,
modestly-priced equatorial mounts.
Item #E0721000
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Intoducing the Telescope Drive Master!
Designed to attach to popular,
modestly-priced equatorial mounts, the Telescope Drive Master™ (TDM)
uses a mount-specific adapter, an ultra-high resolution encoder, and an
electronics package that transforms your drive system into a
super-performance, research-grade drive. This device does not require
tedious PEC training, just turning on the TDM almost eliminates all of
the periodic and non-periodic tracking error of your equatorial mount.
How Does the TDM Work?
The electronic controller unit compares the signals incoming from
the high precision rotary encoder mounted onto the RA shaft with the
time signal of its quartz oscillator. Any deviations of the angular
velocity of the RA shaft from the prescribed drive rate, are compensated
by feedback regulation in real time by accelerating or slowing down the
drive.
If further correction is needed because of errors other than
periodic drive error (e.g. dirty bearings, worm gear slipping on its
shaft, etc.), the TDM allows auto-guider input as well.
Which Mounts Does it Work On?
There
are adapters to fit many popular mounts, including select models from
Celestron, Meade, Losmandy, Synta, Orion, Vixen, and Astro Physics.
How Much Better Can My Drive Perform?
A typical
mount can easily have 20-30" (or higher) periodic error as "out-of-box
result", Telescope Drive Master can improve it down to 2-2.5"
peak-to-valley total or less, which is often better than the same
feature of the very expensive premium category mounts. Certainly, the
better quality of mounts will also be able to provide higher accuracy
(even less than ±1" or 2" total) using Telescope Drive Master.
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