标题: PTC?????ò?é
zona
超级版主
Rank: 8Rank: 8


UID 3
精华 0
积分 503
帖子 532
阅读权限 101
注册 2003-12-16
状态 离线
发表于 2004-3-13 13:15  资料  个人空间  短消息  加为好友 
PTC?????ò?é

??????????×è?????ò?é

????×?1950?ê????·??????????????ü????·???BaTiO3??????°??????ó?????????????????¨PTC???????????????????ü?????????????????????????±??????????·?????????????·??????????????ú?????¤???????????ü?????§???¨???????????÷???ì?ò???????????????±?????ó????·????????°??????

????????????×????????ò????PTC??????×è???????????????????????í?????????°??????????PTC????????????????????????????PTC???????????????????????????????à?????????×????PTC??????×è?÷?????????±??×??????????°?°????·??í??????????????????

??????×è?÷°???×è????????·??????????????¨PTC????????×è?÷?????????????¨NTC????????×è??×è?÷??PTC??Positive Temperature Coefficient??????????????????????????NTC??Negative Temperature Coefficient ??????????????????????????????PTC??????×è?÷???????????á±????÷????·?????????°????????????????????±???????????¨???±??????×è???á????????????±??????????????????ü??×è????????3--7????????????????×??ù±?????×è--??????????--???÷?????÷???±????????PTC??????????×è????·????????¤????×??è±????????°???????÷???¤???ú?·??????????×??????????????????÷±??¤???í?????????????????????????????????????±??×÷????

????PTC?????????????????????????°????????·????ú??????×è???????????ó??°??????????ò???÷??????

????PTC????????????????60?ê?ú??????×????????·???????§???????·???????????????????ó?????????ú????±?°??????????????÷?°????·??????????????????ú?·?à?????·?????????ì?????ó?ú?ú??????

????PTC????????????????60?ê?ú??????×???PTC?????·????×÷?????·?????????????????????ó??·????????ú????±??¤???????????????÷?°????·???????????????????±???PTC????×????????°???????ú??PTC??????????????1964?ê??60?ê?ú???????·????80?ê?ú?ó???÷???ú?·??????????????????

????PTC??????????·??§??·???·?????????·????????ú?·????·á?????????????????????à???????ù??????

??????????×è???÷??????
??×è--?????????¨R--T???????????????¨????????PTC??????×è?÷??????????×è??????×è??????????????????
????--???÷?????¨V??A??????????25????????????????????????????×è?÷?????????????????????????????????????????÷????????????
???÷???±???????¨A??T????????????????×è?÷?????????????????????÷???±????±????????????????????????????÷???????????÷???????±?????÷???????à???÷??

??????????×è??????


PTC??????×è?????·?????°?????÷????????
?????§???????????????·?????????????·??????±??¤???·??·?????????·????????í?????????????????????????÷????????????????????????????????????±????÷??×è???????÷???????÷???????ú?????????????????????÷±?°???????????????×??ò?÷?÷???????????ú????×??????????¨

PTC??????×è???????÷????????????
??????·??ú????·??ú???????ú?¨???????????????ú???????÷????·??ú???í·??÷???????????÷????·?ì????????????÷???????÷???????÷????????????????????????????????ì??·???????ú????????????·????ú

PTC??????×è????????????????
???????÷????±??¤×°?????ì???????÷???????????????÷???????????÷??·???×??????÷???????????????÷??????·????ú???????????ì??±í

[???ù±?zona??2004-03-13 13:25????±à??]



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???í?ì?????????????á°ò±?????
顶部
zona
超级版主
Rank: 8Rank: 8


UID 3
精华 0
积分 503
帖子 532
阅读权限 101
注册 2003-12-16
状态 离线
发表于 2004-3-13 13:16  资料  个人空间  短消息  加为好友 
????PTC????×??????????????????à×???????×è????????





???í?ì?????????????á°ò±?????
顶部
zona
超级版主
Rank: 8Rank: 8


UID 3
精华 0
积分 503
帖子 532
阅读权限 101
注册 2003-12-16
状态 离线
发表于 2004-3-13 13:27  资料  个人空间  短消息  加为好友 
PTC??????????

R????×è??Resistance( ?? )
Rc????????×è??Switch resistance
Rp??×??ó?¤×÷??×è
Maximum operational resistance
Rmax??×??ó??×è??Maximum resistance
Rmim??×?????×è??Minimun resistance
T??????Temperature( ?? )
Tc??????????Curie temperature
Tp??×??ó?¤×÷????
Maximum operational temperature
Tmax??×??ó??????Maximum temperature
Tmin??×?????????Minimun temperature
??????×è????????
Temperature coefficient




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???í?ì?????????????á°ò±?????
顶部
 



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