| 摘要 |
FIELD: measurement equipment.SUBSTANCE: device comprises a source of electric energy, a reference resistor, a resistive sensor, a relay with a closing contact, a connecting three-wire line, voltage metres, a control unit, a memory device and a calculating unit. The device additionally includes four keys and two additional resistors. The controlled connection of the sensor to the source and storing of measured values makes it possible within three cycles of measurements to calculate the value of all resistances that participate in the measurement, including the sensor resistance.EFFECT: improved reliability.1 dwg |
