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METHOD OF ELIMINATING TEMPERATURE FLUCTUATIONS IN AMBIENT MEDIUM OF THERMAL-CONDUCTIVITY VACUUM GAUGE AND DEVICE FOR REALISING SAID METHOD

机译：消除导热率真空计周围介质中温度波动的方法及实现所述方法的装置

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FIELD: physics.;SUBSTANCE: dissipation power of a heated thermistor is measured at two different fixed temperatures of the thermistor which exceed the maximum possible temperature of the surrounding gas and the measurement results are used to calculate the differential thermal scattering coefficient which is independent of temperature of the surrounding gas, from the value of which the measured pressure value is determined. The vacuum gauge has a thermistor, a measuring bridge, a model fixed resistor, auxiliary fixed resistors, an analogue switch and an operational amplifier. The vacuum gauge also has an analogue-to-digital converter, a microprocessor, a digital indicator device and an interface device.;EFFECT: complete elimination of effect of fluctuation of temperature of the surrounding gas on vacuum gauge readings.;2 cl, 1 dwg

机译：领域：物理学;实质：在热敏电阻的两个不同的固定温度下测量加热的热敏电阻的耗散功率，该固定温度超过周围气体的最大可能温度，并且测量结果用于计算与温度无关的差分热散射系数周围气体的温度，由其值确定测得的压力值。真空计具有热敏电阻，测量电桥，模型固定电阻器，辅助固定电阻器，模拟开关和运算放大器。真空计还具有一个模数转换器，一个微处理器，一个数字指示器和一个接口装置;效果：完全消除了周围气体温度波动对真空计读数的影响。; 2 cl，1 dwg

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公开/公告号RU2389991C2

专利类型
公开/公告日2010-05-20

原文格式PDF
申请/专利权人 FGUP KURSKIJ ZAVOD MAJAK;
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申请/专利号RU20080114989
发明设计人 OVSJANNIKOV JURIJ ALEKSANDROVICH;BONDAR OLEG GRIGOREVICH;DREJZIN VALERIJ EHLEZAROVICH;POLJAKOV VALENTIN GENNADEVICH;
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申请日2008-04-16
分类号G01L21/22;
国家 RU
入库时间 2022-08-21 18:29:42

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