| 摘要 |
<p>An apparatus and method for controlling a ligth source in Cavity Ring-Down Spectroscopy. The apparatus comprises a controller that generates a control signal to activate and deactivate the light source based on a comparison of an energy signal from a resonant cavity and a threshold. The light source is activated for a predeterminated period based on the stabilization_time of the light source and the time neccesary to provide sufficent energy to the resonant cavity. Thereafter the controller deactivates the light source for a predeterminated time period by interrumping its current source so that light energy in the cavity ring downs and so that the presence of analyte can be measured. The light energy from the light source is directly coupled to the resonant cavity from the light source.</p> |
