,(,330034):,40120,0.2,,:;;:TG115.28:A:100026656(2001)0320106202DEVELOPMENTOFCLOSE-FLASHPOINTMEASURINGINSTRUMENTFORPENETRANTTANGJi-hong,CHENYu-bao(NanchangInstituteofAeronauticalTechnology,Nanchang330034,China)Abstract:Thedevelopmentofaclose2flashpointmeasuringinstrument(electronicthermometerwithdigitalindication)forpenetrantisintroduced.Itissmallinsize,wideinscope(40120)andhighinprecision(within0.2).Theinstrumentcanmeettheneedsofflashpointsurveyingandcanbewidelyused.Keywords:Penetrant;Temperaturemeasuring;Digitalindication,,,,,1,,(),10,,1s,,,,,,,,,,,:2000207228,,,,21,12.1,,,,,,60123320013NDTVol.23No.3Mar.2001©1995-2004TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.,,,,-70+40MWFT212.2,,;,,,2,,22.32(LED),,,,5G14433AöDMC14035G4511BCD25G14133,,5G14433AöD,5G4511,,5G1403,5G14433VR,5G1413,3(DS)5G14133,,,(),11VVV402.011653.257904.503452.260703.507954.753502.509753.7661005.002552.578804.0051055.215603.007854.2551105.501,$0.2(50mVö),0.3%,,,4,,,,,:[1].[M].:,1993.[2].CMOS[M].:,1985.[3].[M].:,1990.[4],.[M].:,1989.[5].AöDDöA[M].:,1992.42001,:42237,,6.00701:©1995-2004TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.