| 摘要 |
PURPOSE:To automatically execute the calibration of the concn. detection of a CO2 sensor without requiring a skilled person by constituting the above detector of the sensor, a max. output value memory means, concn. computing means and concn. outputting means. CONSTITUTION:The CO2 sensor 1 sends a signal to the max. output value memory means 2 and sends a signal to the concn. computing means 3. The max. output value memory means 2 updates and stores the max. value within the prescribed time upon receipt of the signal from the CO2 sensor 1 and sends the max. value to the concn. computing means 3. The concn. computing means 3 computes the concn. of the CO2 by taking the signal of the CO2 sensor 1 and the max. value of the max. output value memory means 2 therein and sends the CO2 concn. to a concn. outputting means 4. The concn. outputting means 4 outputs the CO2 concn. to the outside. The need for using a standard gas for the calibration of the detection accuracy is eliminated in this way and the calibration of accuracy, etc., after the end of the initial operation is not needed at all and, therefore, this detector is economical. |
