一、技术参数(Technical parameters) 1.1标称电阻值:R25=47.00KΩ±1%; Rate zero-resistance value: R25=47.00KΩ±1%; 1.2B值参数:B25/50=3950K+1% B value:B25/50=3950K+1% 1.3绝缘电阻:空气中500VDC,大于100MΩ; Insulation resistance :100MΩMin,500VDC in air 1.4耐电压:空气中,在传感器外壳与导线之间施加1800VAC,3秒、无闪络、击穿现象; Puncture voltage: no flash and breakdown.1800VAC, 3S,between coating and line ,in air . 1.5耗散系数(δ):不小于4.2mW/℃; Dissipation constant(δ):4.2mW/℃over; 1.6热时间常数(τ): 15S Thermal time constant (τ):15S 1.7使用温度范围:-50℃-+250℃; Operation temperature range:-50℃-+250℃; 二、可靠性试验: (Reliability tests) 2.1高温存储Hot temperature storage 将传感器存放于180℃+5℃干燥环境中,1000hrs后,测试其电阻值R25、B值, Store in hot still air at 180℃+5℃ for 1000hrs.|△R/R|≤3%,|△B/B|≤1%; and test |△R/R|≤3%,|△B/B|≤1%; 2.2低温存储(Low temperature storage) 将传感器存放于-30℃-+5℃干燥环境中,1000hrs后,测试其电阻值R25、B值, Store in dry still air at –30℃-+5℃ ...