This shows you the differences between two versions of the page.
Both sides previous revision Previous revision Next revision | Previous revision | ||
p2017a [2020/02/21 04:27] k0ry add missing paren |
p2017a [2020/06/14 21:33] k0ry [Project 2017b Microcontroller Nixie Clock] Fix p2017b -> p2017a in page title |
||
---|---|---|---|
Line 1: | Line 1: | ||
- | ====== Project 2017b Microcontroller Nixie Clock ====== | + | ====== Project 2017a Microcontroller Nixie Clock ====== |
* 10 MHz XO | * 10 MHz XO | ||
* 1x6 Multiplex Display (IN-12 Tubes) | * 1x6 Multiplex Display (IN-12 Tubes) | ||
Line 7: | Line 7: | ||
- | HP5335A is measuring time from 'every other 1PPS' clock debug signal to XLI 1PPS out. | + | <del>HP5335A</del> HP5334A is measuring time from 'every other 1PPS' clock debug signal to XLI 1PPS out. |
The unwrapped TIC data is really just a simple remapping of [0,1] to [-0.5, 0.5]. | The unwrapped TIC data is really just a simple remapping of [0,1] to [-0.5, 0.5]. | ||
- | Temperature measurements from Acromag 965EN (loaner unit courtesy of WV7U. TNX!) "Clock" channel thermocouple is in the air about 2 inches from the 10 MHz crystal. "Window" channel thermocouple is leaning against the window (about 18 inches from the clock). | + | Temperature measurements from Acromag 965EN. "Clock" channel thermocouple is in the air about 2 inches from the 10 MHz crystal. "Window" channel thermocouple is currently unavailable (was leaning against the window, about 18 inches from the clock). |
==== Last 24 hours ==== | ==== Last 24 hours ==== | ||
Line 25: | Line 25: | ||
{{:wiki:p2017a:raw_tic_full.png|}} | {{:wiki:p2017a:raw_tic_full.png|}} | ||
- | === Freshness Label === | + | |
+ | === Frequency Error vs. Temperature === | ||
+ | {{:wiki:p2017a:scatter_freq_error_vs_temp.png|}} | ||
+ | |||
+ | ==== Freshness Label ==== | ||
<php> | <php> | ||
include "data/media/wiki/p2017a/time_of_last_update.html"; | include "data/media/wiki/p2017a/time_of_last_update.html"; |