| 摘要 |
PCT No. PCT/DE95/01181 Sec. 371 Date Mar. 24, 1997 Sec. 102(e) Date Mar. 24, 1997 PCT Filed Sep. 1, 1995 PCT Pub. No. WO96/09536 PCT Pub. Date Mar. 28, 1996The invention relates to a method and a circuit arrangement for actuating a measuring sensor for determining an oxygen concentration in a gas mixture, particularly in exhaust gases of internal combustion engines, wherein a detector voltage corresponding to the oxygen concentration and supplied by a reference probe is transferred into a pump voltage for a measuring probe by a circuit arrangement. It is provided that a curve of the detector voltage (UD) is used directly for determining the curve of the pump voltage (UP), with a first input (38) of the circuit arrangement (36) being connected to a first input (46) of an adder (48) at whose second input (50) an add voltage is applied and whose output (54) is connected to the second input (40) of the circuit arrangement (36) via an amplifier (58).
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