| 摘要 |
A method for calibrating the response time of a mass air flow sensor in which the sensors bridge offset voltage is measured and the constant CI is calculated from the initial value of the bridge offset voltage. CI is a constant of the heated resistor's resistance in the equation RH=C+(1/IH) CI. The response time of the mass air flow sensor is a function of CI. A bridge offset voltage required to give CI a desired value is calculated. A pair of biasing resistors are trimmed while monitoring the value of the bridge offset voltage until the monitored value of the bridge offset voltage is equal to the desired value. |
