Changes between Version 55 and Version 56 of RoboDIMM

Timestamp:

Dec 3, 2010, 11:08:55 AM (16 years ago)

Author:

giebink

Comment:

--

RoboDIMM

@@ -437 +437 @@
 The potential for skin seeing at PS1 is being investigated in two ways. A temperature monitoring system has been installed and series of seeing measurements has been initiated.
 
-=== __Dual RoboDIMMs August 25, 2010__ ===
+=== __Skin Temperature Monitoring System__ ===
+
+To investigate whether a "skin seeing" issue exists at PS1 a monitoring system has been installed to measure dome skin and adjacent ambient temperatures. The system consists of three Resistance Temperature Detectors (RTDs) and a RTD input module. The photos show the placement of the sensors. The first dangles in the end a piece of 3/4" PVC. The sensor is shaded but the bottom of the tube is cut out to allow air flow. The sensor is approximately 2' away from the dome. The second sensor is taped to the dome with aluminum tape. The third is held against the dome surface by a 1" x 1" x 1/2" piece of closed-cell foam epoxied to the surface. Sensors two and three have a coating of thermal conductive paste. The sensors are wired to an ADAM-6015 RTD input module through the unused vent 3. The input module is polled every minute by a script on Otis 7. The data is recorded in /export/home/otis/skintemp/data with file names yyyymmdd.skintemp.dat
+
+=== __Dual DIMM Measurements__ ===
+
+ * Dual DIMM Calibration
+
+On May 28, 2010, two RoboDIMMs collected data pointing at Polaris from the PS2 dome. 
+
+ * Dual RoboDIMMs August 25, 2010
 
 The RoboDIMMs were set up south of PS1 so they point at Polaris along the west side of the dome. To get the star to appear just off the widest part of the dome the DIMMs were placed about 20' off the road in the area leading toward the former location of the ATST tower. To locate the DIMM measuring seeing near-dome the DIMM was moved east until the images were blocked by the dome then moved west until they were just clear. The other DIMM was placed 5' to the west.