- 317: Prop_Vane, Site all, Mon 29-Jul-2002 12:41:35 MDT, Post calibration: anemometer threshold
Each anemometer was tested in the tunnel from 0 to 4 m/s in .1 to .2 m/s
increments (.1 from 0 to 1 m/s, .2 from 1 to 4 m/s). The tunnel reference
propeller was used as the reference source. There were good agreements with the
reference speed once the test anemometers got going.
sensor site* starting threshold
00245 3 .68
00315 5 .65
00314 9 .52
00313 8 .45**
00318 7 .56
00319 6 .77
35500 2 2.2
38768 4 .30**
38769 1 .61
38770 spare .42**
*see entry 314
**started at same time as reference
- 262: Prop_Vane, Site 6, Wed 19-Jun-2002 11:14:48 CDT, Prop at station 6?
Station 6 prop may have bad bearings or the sonic is reading high.
A difference plot between the 10m prop and the sonic shows the
prop lower then the sonic. This change started taking place on the 17th.
Comparing the two sensors to station 4 and 5, the sonic seems to
be reading high.
- 145: Prop_Vane, Site 6, Sun 26-May-2002 17:38:22 CDT, Cycled powsr on Sbus to restart prop direction
Gordon recycled Sbus power in order to restart the prop vane. Its
direction was stuck at -99. We did not recalibrate the prop. Its
coefficients were:
COMMANDS: BD CD FC FR MR OD OS PH PM PO propXXX SAxx TW ZN ERROR: No response from sBus
Enter Command --> PO PIXEL COMPARE RATIOS: 058 056 060 061 062 063 066 067 067 068 071 074 077 078 081 081 082 083 085 085 087 089 089 091 092 092 094 095 095 096 097 097 097 099 099 100 100 100 098 098 097 097 095 095 092 091 090 088 087 086 083 083 081 080 079 077 076 072 071 070 068 067 064 062
ADDR: 12 PROP: 303 BOOM DIR: 176 UNIT CODE: 3 (0-KTS, 1-MPH, 2-KMPH, 3-M/S) RATE DELAY: 30 x 32.768 mS FLASH TIME: 07 ERROR: No response from sBus
Gordon looked for water in the TRH plug, which had accompanied the
same symptom at station 5. He found the plug to be dry.
- 75: Prop_Vane, Site 5, Thu 16-May-2002 10:00:27 CDT, Prop vane azimuth and PO output
after raising mast during site visit on May 12, checked the azimuths
with KVH data scope (declination=6.0 east)
From the sonic w and prop Spd data it appears the mast was lowered
at about 18:10 CDT and raised at 18:45, May 12
Shot angles with KVH data scope (declination=6.0 east)
Prop boom: 177
Prop BD was 176, John set it to 177. Here is the prop output:
Enter sensor address (00 -- ff) -> 12
Opening communications to "/tyCo/3". Type a D when done
COMMANDS: BD CD FC FR MR OD OS PH PM PO propXXX SAxx TW ZN
ERROR: No response from sBus
Enter Command --> PO
PIXEL COMPARE RATIOS:
046 045 048 050 051 051 052 057 059 060 061 062 065 066 068 070
073 074 076 078 080 083 086 087 086 092 094 095 096 098 099 100
098 099 099 097 097 097 098 097 096 095 094 094 093 091 091 089
089 088 086 085 083 083 080 077 079 076 073 072 070 070 067 064
ADDR: 12
PROP: 300
BOOM DIR: 176
UNIT CODE: 3 (0-KTS, 1-MPH, 2-KMPH, 3-M/S)
RATE DELAY: 30 x 32.768 mS
FLASH TIME: 03
ERROR: No response from sBus
Enter Command --> BD177
ERROR: No response from sBus
Enter Command --> PO
PIXEL COMPARE RATIOS:
046 045 048 050 051 051 052 057 059 060 061 062 065 066 068 070
073 074 076 078 080 083 086 087 086 092 094 095 096 098 099 100
098 099 099 097 097 097 098 097 096 095 094 094 093 091 091 089
089 088 086 085 083 083 080 077 079 076 073 072 070 070 067 064
ADDR: 12
PROP: 300
BOOM DIR: 177
UNIT CODE: 3 (0-KTS, 1-MPH, 2-KMPH, 3-M/S)
RATE DELAY: 30 x 32.768 mS
FLASH TIME: 03
ERROR: No response from sBus
Enter Command -->
Closing communications
- 49: Prop_Vane, Site 6, Sat 11-May-2002 16:56:15 CDT, Recalibrated prop vane direction encoder
The wind direction at site 6 was stuck at ~ 260 degrees. This was
fixed around 1830 GMT by recalibrating the prop vane direction encoder.
It appears from the sonic data that the mast was lowered
from 18:15 - 18:30 GMT, May 11.
- 41: Prop_Vane, Site 9, Sat 11-May-2002 08:31:51 CDT, prop and rad stand azimuths at site 9
Measured the bearing of the rad stand with the data-scope:
92.2 deg, 91.1 deg
Prop boom: 359.2, 359.1, 358.8.
Changed the prop BD parameter from 176 to 179.
Previously changed batteries in the KVH data scope
and did the cal procedure (passed with a good 8 grade!), with
a declination of 5 degrees east.