JAI SP-5000M-CXP4 User Manual

Contents

JAI SP-5000M-CXP4 User Manual Manual pdf 34 page image

SP-5000M-CXP4 / SP-5000C-CXP4- 32 -7.2.1 Exposure ModeThe exposure mode can be selected from the following three ways.Table35. Exposure modeExposure Mode setting Exposure operationOFF No exposure control (free-running operation)TimedExposure operation at the value set in Exposure Time. Setting value is usec unit.・If Trigger Mode setting is OFF, the camera is in free-running operation.・If Trigger Mode setting is ON, the exposure operation depends on the setting ofTrigger Option.Trigger Width The exposure is controlled by the pulse width of the external trigger.・Trigger Mode is forced to ON.For trigger operation, Exposure Mode must be set to something other than OFF and Trigger Mode ofFrame Start must be ON.If Exposure Mode is set at Timed, the exposure operation can be selected as follows by settingTrigger OptionTable36. Trigger optionTrigger Option setting Exposure operationOFF Timed (EPS) modeRCTReset Continuous Trigger mode. The exposure operation is the same as free-runningoperation but it is re-set at the trigger input timing. The video signal is output only ifthe trigger signal is input.This mode is useful, if automatic exposure is needed when the trigger mode is used.PIVPIV (Particle Image Velocimetry) mode. A strobe light is used as the light source. Onetrigger pulse generates two image acquisitions. As for the exposure time, 1st frame isthe exposure time and 2nd frame is the value when the exposure mode is OFF (dependson the frame rate).The effect of the combination of Exposure Mode, Trigger Option and Trigger Mode is as follows.Table37. The combination of Exposure Mode, Trigger Option and Trigger ModeExposure Mode Trigger Option Trigger Mode(Frame Start) OperationOFF N/A N/AFree-running operationExposure control by Exposure Time isnot possibleTimedOFFOFFFree-running operationExposure can be controlled byExposure TimeONTimed (EPS) OperationExposure can be controlled byExposure TimeRCTOFFFree-running operationExposure can be controlled byExposure TimeONRCT OperationExposure can be controlled byExposure TimePIVOFFFree-running operationExposure can be controlled byExposure TimeONPIV OperationExposure can be controlled byExposure TimeTrigger Width N/AOFFFree-running operationExposure control by Exposure Time isnot possibleON Exposure is controlled by the pulsewidth of the external trigger