???? ???? ?????? ?? ???? ????? ?????? ??????? ????? ?????? ????? ?????? ?????? ?????? ???? ?? 10 ????? ?? ?????? ?? ??? ??????.
??? ?? ??? ???? ????? ????? 4-20 ???? ????? ?????? ????? ????? ???? ??????? ???????? ?
?? ??????? ???????? ??? ???? ??????????? ????? ???????? ????? ????? ??? ?????? ?? ??????? ??????? ???????? ??? ?????? ???????. ??????? ????? ?????? ?? ??????? ??? ????????? ?? ????? ???? ???????? ??? ???? ???? ???? ???????? ?? ??????? ???????? ?? ????? ????????? ??????? ??????? ????? ????? ???? ??????? ???????? ?? ????? ????????.
???? ????? ???? ??????? ???????? ?? ???? ????? ???? ??????? ???????? ??? ?????? ???????? ???? ?????? ?????????. ????? ??? ??? ??????? ???? ????? ??????? ?????????? ??? ?????? ????????? ??? ???? ???????. ???????? ?? ??????? ??? ???? ???? ???? ??????? ?????? ??? 4 ?20 ???? ????? ???? ???????? ?????????. ????? ?????? ???? 4-20 ???? ?????? ??????? ?????? ????????? ???? ????? ???????? ???????? ???????? ?? ??????? ??????? ??????? ??????? ??? ??????? ?? ??????? ?? ???? ??? ????? ?????? ??? ??????? ????? ??????? ??? ??? ????? ????? ????. ???? ?????? ?????? ?? 20 ???? ????? ?????? ????? ??????? ????????: ??????? ???????? ??????? ?? ????? ?????? ???? 20 ???? ????? ??? ????? ?????? ?????. ??? ???? ??????? ??? ????? ??? 0 ???? ????? ????? ?????? ??? ??? ?????? ??????? ?? ?? ??? ?? 4 ???? ????? ????? ??????? ??????. ??? ?????? ?? ????? ???? ???? ????? ?????? ??????? ??? 0. ?????? ?? ??????? 2 ???? ????? ????? ????? ??????? ??????. ???? ????? ????. ??? ??????? ?? ???? ???????? ???? ??? ?? ?? 4-20 ???? ????? ?????? ???? ?????? ?? ?? ??????? ??? ??? ??????? ???? ?????? ?? ??? ?????? ?4 ???? ????? ?????? ???? ??????? ?????? ??????? ????? ??????? ????????. ??? ?? ??? ???? ????? ????? ?????? 4-20 ???? ????? ????? ????? ???? ??????? ????????? ????? ???????: ① ????? ?????? ??? ???????? ② ????? ????? ????? ?????? ???? ??????? ??????? ?? ????? ???????? ③ ????? ????? ?????? ??? ????? ???????? ?? ??? ???? ?????? ???? ??????. ????? ????? ????? ④ ????? ??? ???? ?????? ?????. ??? ???? ??? ??????? ?????? ????????? ???? ???? ????? ??????? ??????? ?????? ?????? 4-20 ???? ?????. ??? ?????? Uo ?? ??? ??????? ????? ???????? ???? ?????? ?? ?? Uo≥Umin ??? ????? ?????? (?????? Iu003d20mA). ??: ????? ???? ??????? ???? ???? ???? ?????? ????? ????? ???? ???? ??????? ??? ???? ??? ?????. ????????: ????????: U<sub>eu003d24V</sub>? I<sub>u003d20mA</sub>? RL<sub>u003d250Ω</sub>? U<sub>minu003d12V</sub>. ???? ?????? ?????? ?? r ????? 175Ω. ????? ????? ???? ?????? ???????? ?? ?????: ρ——???????? ??????? (?????? ?????? 0.017? ?????? ?????????? 0.029) L——??? ???? (??????: ???) S——???? ???? (??????: ?????? ????) ??????: ?????? ???? ???????? ?????? ?? ??? ????? ??????? ?? ????? ????? ??????. ????? ??? ??? ?????? ???? ???????? ????? ??? ????? ??? ???????. ????? ????? ??????? ?????? ??????? ρu003d = 0.017 Ω·mm?/m? ?? ?? ?????? ??? ????? ?????? ???? ???? u200bu200b1mm? ???? 1 ??? ?? 0.017Ω. ????????? ??? ??? ????? ???? ???? ??????? 175Ω ???????? ?????? ???? ???? 1 ??? ?? 175/0.017u003d10294 (?). ????? ?? ??????? ???????? ???? ?? ??? ????? ??????? 4-20 ???? ????? ??? ????? ?????? ?? ??????? (???????? ??? ????? ??? ???? ??????? ???????? ????? ??? ????? ????? ???????). ??? ????? ?? ???? ????? ??? ?????? ??????? ?????? ??????? ??????? ?????? ??? ?? ???? ?? ??????? GB/T 3369.2-2008 "???????? ????????? ?????? ?????? ?? ???????? - ????? 2: ?????? ??? ?????? ???????": "??? ??? ?????? ???? ?????? ??????? ????????? ??????? ?? ??????? GB/T 3369.1-2008? ?? ????? ??????? ????? ??? ?????? ??????? ????????? ??????? ?? ??? ????? ??????? ??????? ?????". ?????? ??????? ?? ?? ????? ????? ????? ??? ??????? ??????? ?????? ??? ???? ???? ???????.??? ??? ???? ?? ????? ????? ????? ??????? ????????? ??????? ??????? ???????? ??? ????? ?????? ?????? ???????? ???? ?????????? ?? ?????? ??????.
???? ??? Rika Sensors ?????? ??? ???? ????? ?? ??? ???? ???????? ?? ???????.
?????? ?????? ?? ????? ???? ?????????? ????? ???????? ??????? ??????? (OEM).
???? ?? ?????? ????? ?? ??????? ?????? ?????? ?????? ???????? ??? ??? ?????? ?????? ??????? ?????? ????????.
???? ????????:info@rikasensor.com
???? ?? ??? ?????:support@rikasensor.com
????: +86 13367318895
?????? | ?? ???
+86 13367318895
???????: ?????? 104? ?????? B1? ????? ???????? 877 ???? ??????? ????? ?????? ???????? ?????? ????? 410116? ?????.