Encapsulating microcrystalline glass slurry, thin film platinum resistor temperature sensor and preparation method thereof

The invention relates to encapsulating microcrystalline glass slurry, a thin film platinum resistor temperature sensor and a preparation method thereof. The encapsulating microcrystalline glass slurry comprises 52-60wt% of encapsulating glass powder and 40-48wt% of an organic carrier, wherein the encapsulating glass powder is prepared from the following components in percentage by mass: 48 to 54 percent of SiO2, 14 to 21 percent of B2O3, 6 to 9 percent of CaO, 3 to 5 percent of WO3, 3 to 6 percent of Al2O3, 3 to 6 percent of Na2O, 3 to 6 percent of K2O and 6 to 12 percent of ZnO. The encapsulating microcrystalline glass slurry is sintered at the temperature of 920-950 DEG C to form the encapsulating microcrystalline glass with calcium tungstate as a crystal phase. Compared with common encapsulating glass, the encapsulating microcrystalline glass disclosed by the invention has good chemical stability, electrical insulating property, glass softening temperature and thermal shock resistance, is suitable for enca