¼ÆËã»ú×é³ÉÔ­Àí-µÚËİæ¿ÎºóϰÌâ´ð°¸(ÍêÕû°æ)

½â£ºÉè×ÜÏß´ø¿íÓÃDr±íʾ£¬×ÜÏßʱÖÓÖÜÆÚÓÃT = 1/f±íʾ£¬Ò»¸ö×ÜÏßÖÜÆÚ´«Ë͵ÄÊý¾ÝÁ¿ÓÃD±íʾ£¬ ¸ù¾Ý¶¨Òå¿ÉµÃ£º

Dr £½ T / D = D ¡Á1/£æ£½8B¡Á70¡Á106/s = 560MB/ µÚÆßÕÂ

1. ¼ÆËã»úµÄÍâΧÉ豸ÊÇÖ¸£¨ £©

A£®ÊäÈë/Êä³öÉ豸 B. Íâ´æ´¢Æ÷

C. ÊäÈë/Êä³öÉ豸¼°Íâ´æ´¢Æ÷ D. ³ýÁËCPUºÍÄÚ´æÒÔÍâµÄÆäËûÉ豸 ½â£º D

2£®´òÓ¡»ú¸ù¾ÝÓ¡×Ö·½Ê½¿ÉÒÔ·ÖΪ£¨ £©ºÍ£¨ £©Á½´óÀ࣬ÔÚ£¨ £©Àà´òÓ¡»úÖУ¬Ö»ÓУ¨ £©ÐÍ´òÓ¡»úÄÜ´òÓ¡ºº×Ö£¬Çë´ÓÏÂÃæ´ð°¸ÖÐÑ¡ÔñÌî¿Õ¡£ A£® ÕëÐÍ´òÓ¡»ú B. »î×ÖÐÍ´òÓ¡»ú C. »÷´òʽ D. ·Ç»÷´òʽ

½â£ºC D C A

7£®ÊÔÍÆµ¼´ÅÅÌ´æÖüÆ÷¶Áдһ¿éÐÅÏ¢ËùÐè×Üʱ¼äµÄ¹«Ê½¡£

½â£ºÉè¶Áдһ¿éÐÅÏ¢ËùÐè×Üʱ¼äΪTb£¬Æ½¾ùÕÒµÀʱ¼äΪTs£¬Æ½¾ùµÈ´ýʱ¼äΪTL£¬¶Áдһ¿éÐÅÏ¢µÄ

´«Êäʱ¼äΪTm£¬Ôò£ºTb=Ts£«TL£«Tm¡£¼ÙÉè´ÅÅÌÒÔÿÃërתËÙÂÊÐýת£¬Ã¿Ìõ´ÅµÀÈÝÁ¿ÎªN¸ö×Ö£¬

ÔòÊý¾Ý´«ÊäÂÊ=rN¸ö×Ö/Ãë¡£ÓÖ¼ÙÉèÿ¿éµÄ×ÖÊýΪn£¬Òò¶øÒ»µ©¶Áдͷ¶¨Î»Ôڸÿéʼ¶Ë£¬¾ÍÄÜÔÚ

Tm¡Ö£¨n / rN£©ÃëµÄʱ¼äÖд«ÊäÍê±Ï¡£TLÊÇ´ÅÅÌÐýת°ëÖܵÄʱ¼ä£¬TL=£¨1/2r£©Ã룬 Óɴ˿ɵãº

Tb=Ts£«1/2r£«n/rN Ãë

8£®Ä³´ÅÅÌ´æÖüÆ÷תËÙΪ3000ת / ·Ö£¬¹²ÓÐ4¸ö¼ÇÂ¼Ãæ£¬Ã¿ºÁÃ×5µÀ£¬Ã¿µÀ¼Ç¼ÐÅϢΪ12288×Ö½Ú£¬×îС´ÅµÀÖ±¾¶Îª230mm£¬¹²ÓÐ275µÀ¡£ÎÊ£º

£¨1£© ´ÅÅÌ´æÖüÆ÷µÄÈÝÁ¿ÊǶàÉÙ£¿ £¨2£© ×î¸ßλÃܶÈÓë×îµÍλÃܶÈÊǶàÉÙ£¿ £¨3£© ´ÅÅÌÊý¾Ý´«ÊäÂÊÊǶàÉÙ£¿ £¨4£© ƽ¾ùµÈ´ýʱ¼äÊǶàÉÙ£¿ £¨5£© ¸ø³öÒ»¸ö´ÅÅ̵ØÖ·¸ñʽ·½°¸¡£ ½â£º

£¨1£© ÿµÀ¼Ç¼ÐÅÏ¢ÈÝÁ¿ = 12288×Ö½Ú Ã¿¸ö¼ÇÂ¼ÃæÐÅÏ¢ÈÝÁ¿ = 275¡Á12288×Ö½Ú

¹²ÓÐ4¸ö¼ÇÂ¼Ãæ£¬ËùÒÔ´ÅÅÌ´æ´¢Æ÷×ÜÈÝÁ¿Îª £º 4 ¡Á275¡Á12288×Ö½Ú = 13516800×Ö½Ú

£¨2£© ×î¸ßλÃܶÈD1°´×îС´ÅµÀ°ë¾¶R1¼ÆË㣨R1 = 115mm£©£º D1 = 12288×Ö½Ú / 2¦ÐR1 = 17×Ö½Ú / mm ×îµÍλÃܶÈD2°´×î´ó´ÅµÀ°ë¾¶R2¼ÆË㣺

R2 = R1 + £¨275 ¡Â 5£© = 115 + 55 = 170mm D2 = 12288×Ö½Ú / 2¦ÐR2 = 11.5 ×Ö½Ú / mm £¨3£© ´ÅÅÌ´«ÊäÂÊ C = r ¡¤ N

r = 3000 / 60 = 50 ÖÜ / Ãë N = 12288×Ö½Ú£¨ÐŵÀÐÅÏ¢ÈÝÁ¿£©

C = r ¡¤ N = 50 ¡Á 12288 = 614400×Ö½Ú / Ãë £¨4£©Æ½¾ùµÈ´ýʱ¼ä = 1/2r = 1 / (2¡Á50) = 10ºÁÃë

£¨5£©´ÅÅÌ´æÖüÆ÷¼Ù¶¨Ö»ÓÐһ̨£¬ËùÒԿɲ»¿¼ÂÇ̨ºÅµØÖ·¡£ÓÐ4¸ö¼ÇÂ¼Ãæ£¬Ã¿¸ö¼ÇÂ¼ÃæÓÐ275¸ö´Å

µÀ¡£¼Ù¶¨Ã¿¸öÉÈÇø¼Ç¼1024¸ö×Ö½Ú£¬ÔòÐèÒª12288 ¡Â1024×Ö½Ú = 12¸öÉÈÇø¡£Óɴ˿ɵÃÈç ϵØÖ·¸ñʽ£º

14£®ÓÐһ̨´ÅÅÌ»ú£¬Æäƽ¾ùѰµÀʱ¼äΪÁË30ms,ƽ¾ùÐýתµÈ´ýʱ¼äΪ120ms£¬Êý¾Ý´«ÊäËÙÂÊΪ500B/ms£¬´ÅÅÌ»úÉÏ´æ·Å×Å1000¼þÿ¼þ3000B

µÄÊý¾Ý¡£ÏÖÓû°ÑÒ»¼þÊý¾ÝÈ¡×ߣ¬¸üкóÔÚ·Å»ØÔ­µØ£¬¼ÙÉèÒ»´ÎÈ¡³ö»òдÈëËùÐèʱ¼äΪ£º

ƽ¾ùѰµÀʱ¼ä+ƽ¾ùµÈ´ýʱ¼ä+Êý¾Ý´«ËÍʱ¼ä

ÁíÍ⣬ʹÓÃCPU¸üÐÂÐÅÏ¢ËùÐèʱ¼äΪ4ms, ²¢ÇÒ¸üÐÂʱ¼äͬÊäÈëÊä³ö²Ù×÷²»ÏàÖØµþ¡£ ÊÔÎÊ£º

£¨1£© ÅÌÉÏÈ«²¿Êý¾ÝÐèÒª¶àÉÙʱ¼ä£¿

£¨2£© Èô´ÅÅ̼°ÐýתËٶȺÍÊý¾Ý´«ÊäÂʶ¼Ìá¸ßÒ»±¶£¬¸üÐÂÈ«²¿Êý¾ÝÐèÒª¶àÉټ䣿

½â£º£¨1£©´ÅÅÌÉÏ×ÜÊý¾ÝÁ¿ = 1000¡Á3000B = 3000000B

¶Á³öÈ«²¿Êý¾ÝËùÐèʱ¼äΪ 3000000B ¡Â 500B / ms = 6000ms ÖØÐÂдÈëÈ«²¿Êý¾ÝËùÐèʱ¼ä = 6000ms ËùÒÔ£¬¸üдÅÅÌÉÏÈ«²¿Êý¾ÝËùÐèµÄʱ¼äΪ £º

2¡Á£¨Æ½¾ùÕÒµÀʱ¼ä + ƽ¾ùµÈ´ýʱ¼ä + Êý¾Ý´«ËÍʱ¼ä £©+ CPU¸üÐÂʱ¼ä

= 2£¨30 + 120 + 6000£©ms + 4ms = 12304ms

(2) ´ÅÅÌ»úÐýתËÙ¶ÈÌá¸ßÒ»±¶ºó£¬Æ½¾ùµÈ´ýʱ¼äΪ60ms£» Êý¾Ý´«ÊäÂÊÌá¸ßÒ»±¶ºó£¬Êý¾Ý´«ËÍʱ¼ä±äΪ£º 3000000B ¡Â 1000B / ms = 3000ms

ÁªÏµ¿Í·þ£º779662525#qq.com(#Ìæ»»Îª@)