Abstract: A method and system for process model translation is disclosed herein. The method includes generating a common process model based upon a first process model capable of being utilized by a first simulation program. A second process model is then generated based upon the common process model, the second process model being capable of being utilized by a second simulation program.

Abstract: A physical quantity sensing device includes a bridge circuit that has first and second input points, to which an AC voltage is applied, and first and second output points connected to a differential amplifier. The bridge circuit includes a first bridge arm for electrically connecting the first input point to the first output point, a second bridge arm for electrically connecting the first output point to the second input point, a third bridge arm for electrically connecting the first input point to the second output point and a fourth bridge arm for electrically connecting the second output point to the second input point. The first bridge arm includes a first sensor element, of which the impedance changes with a physical quantity to be measured, and the second bridge arm includes a second sensor element, of which the impedance also changes with the physical quantity to be measured. The total impedance of the first and second bridge arms is smaller than that of the third and fourth bridge arms.

Abstract: A gas detection device includes a gas sensing portion, a heater, and an insulating layer provided between the gas sensing portion and the heater. The gas detection device further includes a control section and a portion of an engine control device for controlling operations of the gas sensing portion and the heater, the control section ensuring that timing of changing a current supplied to the heater is synchronized with a detection operation by the gas sensing portion. The gas detection device prevents detection errors of a gas sensor even when noise associated with temperature control of a heater occurs.

Abstract: A physical quantity sensing device includes an AC voltage generator for generating an AC voltage and a bridge circuit that has first and second input points, to which the AC voltage is applied, and first and second output points connected to a differential amplifier. The bridge circuit includes first and second sensor elements, the impedance of which change with a physical quantity to be measured. The first and second sensor elements have a positive temperature characteristic in which sensitivity increases as temperature rises. The AC voltage generator includes an amplitude limiter which has a negative temperature characteristic that decreases the amplitude of the AC voltage with a rise in temperature, thereby compensating for temperature dependence of a differential voltage produced between the first and second output points.

Abstract: A physical quantity sensing device includes an AC voltage generator for generating an AC voltage and a bridge circuit that has first and second input points, to which the AC voltage is applied, and first and second output points connected to a differential amplifier. The bridge circuit includes a first sensor element, the impedance of which changes with a physical quantity to be measured, and a second sensor element, the impedance of which also changes with the physical quantity to be measured. The first and second sensor elements have a positive temperature characteristic in which sensitivity increases as temperature rises. The AC voltage generator includes an oscillator and an amplitude limiter for supplying the AC voltage, the amplitude of which is limited within a predetermined range, in response to an output signal of the oscillator.

Abstract: A physical quantity sensing device includes a bridge circuit that has first and second input points, to which an AC voltage is applied, and first and second output points connected to a differential amplifier. The bridge circuit includes a first bridge arm for electrically connecting the first input point to the first output point, a second bridge arm for electrically connecting the first output point to the second input point, a third bridge arm for electrically connecting the first input point to the second output point and a fourth bridge arm for electrically connecting the second output point to the second input point. The first bridge arm includes a first sensor element, of which the impedance changes with a physical quantity to be measured, and the second bridge arm includes a second sensor element, of which the impedance also changes with the physical quantity to be measured. The total impedance of the first and second bridge arms is smaller than that of the third and fourth bridge arms.

Abstract: A method and system for process model translation is disclosed herein. The method includes generating a common process model based upon a first process model capable of being utilized by a first simulation program. A second process model is then generated based upon the common process model, the second process model being capable of being utilized by a second simulation program.