Основы измерений. Долгополов В.Т. - 50 стр.

                                         Jbk. 58.
        Bgl_jn_ckgZy ieZlZ dhfivxl_jZ kh_^bgy_lky k ijb[hjZfb ki_pbZevghc rbghc,
dhlhjZy khklhbl ba 16 ebgbc, ih^jZa^_eyxsboky gZ ljb ih^rbgu, dZ`^Zy ba dhlhjuo
\uihegy_l kh[kl\_ggmx nmgdpbx.
  RbgZ \\h^Z-\u\h^Z ^Zgguo (DIO). Khklhbl ba \hkvfb ebgbc. >Zggu_ ij_^klZ\e_gu
iZjZee_evgh i_j_^Z\Z_fufb [blZfb b ihke_^h\Zl_evgh i_j_^Z\Z_fufb [ZclZfb. (L._ gZ
dZ`^mx ebgbx rbgu ih^Z_lky h^gh\j_f_ggh kb]gZe 0 beb +5<, qlh khhl\_lkl\m_l
h^ghfm [Zclm. Ihke_ lh]h, dZd wlhl [Zcl kqblZg, dhfZg^Z , khhl\_lkl\mxsZy bgnhjfZpbb
[ZclZ \uiheg_gZ, i_j_^Z_lky ke_^mxsbc [Zcl). I_j_^ZqZ ^Zgguo hkms_kl\ey_lky
Zkbgojhggh, k ihfhsvx ijhp_^mju «d\blbjh\Zgby», \ dhlhjhc mqZklgbdb h[f_gb\Zxlky
«d\blZgpbyfb».
  RbgZ d\blbjh\Zgby. Khklhbl ba lj_o ebgbc, bkihevam_fuo ^ey i_j_^Zqb kb]gbeh\ ,
mijZ\eyxsbo ihlhdhf ^Zgguo ih rbg_ \\h^Z-\u\h^Z ^Zgguo DIO: ebgbb «^Zggu_
]hlh\u» ( data valid, DAV), ebgbb «g_ ]hlh\ d ijb_fm ^Zgguo» (not ready for data, NRFD) b
ebgbb «^Zggu_ g_ ijbgylu» (not data accepted, NDAC). Lhevdh ihke_ lh]h, dZd kZfuc
f_^e_gguc mqZklgbd aZdhgqbl ql_gb_ ^Zgguo, rbgZ DIO hk\h[h`^Z_lky ^ey ke_^mxs_]h
^_ckl\by. < kemqZ_, _keb h^bg ba mqZklgbdh\ hdZau\Z_lky g_ \ khklhygbb \u^Zlv kb]gZe
]hlh\ghklb, rbgZ hklZ_lky aZ[ehdbjh\Zgghc. Qlh[u ba[_`Zlv \_qghc [ehdbjh\db,
dhgljhee_j q_j_a g_dhlhjh_ «\j_fy h`b^Zgby» ^he`_g \hkklZgh\blv ghjfZevguc j_`bf
jZ[hlu gZ rbg_.
  RbgZ mijZ\e_gby. Khklhbl ba iylb ebgbc, bkihevam_fuo ^ey lh]h, qlh[u h[_ki_qblv
mihjy^hq_ggmx i_j_^Zqm khh[s_gbc.
       Gbadh_ agZq_gb_ gZijy`_gby gZ ebgbb khhl\_lkl\m_l eh]bq_kdhc _^bgbp_
(«bklbgZ»), gZijy`_gb_ +5< –gmex («eh`v). JZaebqZxl q_luj_ khklhygby ijb_fgbdZ,
bg^bpbjm_fu_ ih khklhygbx lj_o ebgbc rbgu d\blbjh\Zgby: «ijb_fgbd g_ ]hlh\»
(acceptor not ready state, ANRS), «ijb_fgbd ]hlh\» (accetor ready state, ACRS) , «ijbgbfZx
^Zggu_» (accept data state, ACDS) b «ijb_fgbd `^_l gh\h]h pbdeZ» (acceptor wait for new
cycle state, AWNS). >ey bklhqgbdZ kb]gZeZ bf__lky lZd`_ q_luj_ khklhygby: «khklhygb_
]_g_jZpbb» (source generate state, SGNS), «khklhygb_ aZ^_j`db bklhqgbdZ» (source delay
state, SDYS), «khklhygb_ i_j_^Zqb» (source transfer state, STRS), b gZdhg_p, «bklhqgbd
`^_l gh\h]h pbdeZ» (source wait for new cycle state, SWNS).