The current status

A monthly updated status report of SONG-China telescope and instruments manufacturing.

0 0 1 27 156 NAOC 1 1 182 14.0 96 800x600 Normal 0 false false false EN-US JA X-NONE /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin:0cm; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:Calibri;} The kick-off meeting of China SONG telescope was held on April 27, 2010. After the period of discussion and revision, the preliminary design proposal was finished on August 13, 2010.

   



Telescope 3-D model with tags

Four monthes later, on Dec. 25, 2010, the CDR meeting was held on Nanjing to check the  telescope detail design and calculation from the view of feasibility, reliability, suitability and cost effective.

After CDR, telescope entered into the phase of manufacture. So far, the following work was or nearly finished:

-        Primary mirror is on the stage of milling;

-        The milling of secondary mirror has been finished, shown as following figure;

 

Secondary mirror after milling

 

-Signed the contract of large bearings for azimuth and elevation;

-Signed the contract of torque motors and corresponding amplifiers for azimuth and elevation;

-Signed the contract of encoders for azimuth and elevation;

-Signed the contract of controller(UMAC) with the U.S. Delta Tau company;

-Mechanical manufacture are going smoothly according to the schedule and this work will be finished by the end of next March;

Now, we are preparing the following contract:

-Contract of force actuators, force sensors and force controllers, which will be used to form the close-loop control of primary mirror shape with the help of S-H;

-Contract of S-H unit;

-Contract of 5-DoF hexapod, which will be used to align M2 with M1;

-Contract of echelle, CCD, Tip/tilt;

 

The work of the telescope will be updated periodically with the project going on this web. Please do not hesitate to contact This e-mail address is being protected from spambots. You need JavaScript enabled to view it. and This e-mail address is being protected from spambots. You need JavaScript enabled to view it. if you need further information about the telescope or have something to discuss with us.