PURPOSE: To remove effect as caused by a thermoelectromotive force in a lead to individual resistances and a contact potential at a switch.
CONSTITUTION: This method is to determine a voltage drop in a stabilized reference resistance of a temperature characteristic for the measurement of temperature. In this method, four voltage drops are measured and a difference is formed from two each of the voltage drops. A quotient is obtained from the difference using it as yardstick for a measuring quantity. In this manner, the four voltage drops are determined to obtain a voltage drop. Hence, a measuring current (Im+) flows through a measuring resistance and a negative measuring current(Im-)flows through a measuring resistance. The positive measuring current (Im+) flows through a reference resistance and the negative measuring current (Im-) flows through the reference resistance. Then, a difference is generated between first and second measured values, a difference is generated between third and fourth measured values and then, a quotient is formed between both the differences.
| JPH07109378 | INDUSTRIAL APPLICABILITY: Weight measuring method |
| WO/1992/008279 | TRANSMITTER WITH MULTIFUNCTION ADJUSTMENT |
| JPS6097231 | PRESSURE CONVERTER |
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