초록

The invention provides methods and apparatus to reference or normalize optical measurements, by removing or accounting for background factors and artifacts, such as motion artifacts, that arise during use of optical catheters.

대표청구항 ▼

The invention provides methods and apparatus to reference or normalize optical measurements, by removing or accounting for background factors and artifacts, such as motion artifacts, that arise during use of optical catheters. mponents. 13. A method for supplying marking fluid in an imaging system i

The invention provides methods and apparatus to reference or normalize optical measurements, by removing or accounting for background factors and artifacts, such as motion artifacts, that arise during use of optical catheters. mponents. 13. A method for supplying marking fluid in an imaging system including an assembly of one or more imaging components, comprising: providing a marking fluid tank comprising a reservoir constructed and arranged to contain marking fluid; generating height signals indicative of relative marking fluid levels in the marking fluid tank reservoir; and computing a measure of marking fluid flow rate based upon multiple height signals generated during at least a portion of a startup period extending from a time when flow of marking fluid to the imaging assembly is insubstantial to a time when marking fluid in the marking fluid tank reservoir reaches a substantially steady-state level. 14. The method of claim 13, further comprising generating an instruction for manually adjusting the marking fluid flow rate based upon a comparison of the computed marking fluid flow rate measure and a target marking fluid flow rate value. 15. The method of claim 13, further comprising generating a control signal for automatically adjusting the marking fluid flow rate based upon a comparison of the computed marking fluid flow rate measure and a target marking fluid flow rate value. 16. The method of claim 13, wherein the marking fluid flow rate measure is automatically computed during startup periods of every print job. 17. The method of claim 13, further comprising waiting a preselected delay period after computing the marking fluid flow rate measure during a startup period of a given print job before automatically computing the marking fluid flow rate measure during a startup period of a subsequent print job. 18. The method of claim 13, wherein the marking fluid flow rate measure is automatically computed during a startup period of a print job immediately following replacement of a consumable component of the imaging system. 19. The method of claim 13, further comprising transmitting a triggering signal to one or more imaging components of the assembly based upon the computed marking fluid flow rate measure. 20. The method of claim 19, further comprising computing a trigger time when marking fluid levels in one or more imaging components will be sufficient for activation of the one or more imaging components.