| 摘要 |
PROBLEM TO BE SOLVED: To provide a system and a method for enabling a newer, inexpensive, and accurate oxygen sensor which becomes usable in an existing device, such as a data logger and a controller. SOLUTION: An interface module is used, in combination with a newer sensor, such as a fluorescence oxygen sensor and an older legacy device. The legacy device supplies a polarizing voltage and predicts the measurement current of 0 to 100 nA. The newer sensor does not require polarizing voltages and delivers an output of 0-10 volts in one embodiment, and 4-20 mA in another embodiment. The interface module receives the output from the sensor and converts it into a signal which is usable by the legacy device. In another embodiment, the interface module includes a number of outputs, such that both legacy devices and newer devices can simultaneously communicate with the sensor. The interface module can be used, in conjunction with a reactor chamber or other pharmaceutical process. COPYRIGHT: (C)2011,JPO&INPIT |
