YSI_Prog_E - 第202页

4-42 4 Inspection status 1.15 Height measurement (option) T his inspection status can be used if equipped with the optional laser height sensor . T he height of the inspection object is measured u sing the laser height s…

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Inspection status
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Perform a step test.
1. Press the [Step] button to perform a test for the created step. Test results and detection data are
displayed when testing is complete.
2. Take a note of and check the detection data, and then press the [End] button. When doing so,
there is no problem if the test result is "NG".
Screen after a step test is finished
Test resultDisplays detected data.
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Detection data
Height Offset= : This is the height offset value used to correct board warp.
Threshold No. : This is the threshold No. applied to inspection.
Void Num.= : This is the number of detected voids.
Occupancy= : This is the void occupancy ratio.
6
Review each parameter and perform a step test again.
If the test result is judged incorrectly, review all parameters.
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Inspection status
1.15 Height measurement (option)
This inspection status can be used if equipped with the optional laser height sensor. The height of the
inspection object is measured using the laser height sensor to check whether the result lies within the standard.
After measuring with the board surface and so on as the reference height at "Height Measure" screen, the
height of the inspection object position is measured, and the difference between the reference height is taken
as the parts height. For details, see "Laser Height Sensor" at the end of the Operator's Manual.
1
Make a "step" setting for reference height measurement.
1. Create a step frame.
2. Open the "Basic" tab, and set the "Status" in the basic parameters to "Height measure".
Status (Inspection mode)
Height Measure
Set to "Height Measure".
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Set the "Detect" parameters.
Open the "Detect" tab and set the following parameters.
[Detect] tab
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Measure Type
Select "Reference" from the drop-down list.
Measure Angle
Select the laser beam emission direction (angle) when measuring the parts height as the laser unit
rotates from a drop-down list.
If "AUTO" is selected, the laser emission direction will be the part outer direction.
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Inspection status
Measure Method
Select the method used to obtain the height measurement value from the following four types.
• Spot
Measures the height at the coordinate position in the center of the step.
• ScanMaximum
Measures the height along the step length direction center line and takes the maximum height as
the measurement value.
• ScanMean
Measures the height along the step length direction center line and takes the average height as the
measurement value.
• ScanMinimum
Measures the height along the step length direction center line and takes the minimum height as the
measurement value.
3
Create a step frame for height measurement.
Copy and paste the reference height measurement step created at Step 1, and move it to the
measurement location.
4
Set the "Detect" parameters.
Open the "Detect" tab and set the following parameters.
[Detect] tab
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Measure Type
Select "Point measurement" or "Line measurement" from the drop-down list.
• Pointmeasurement
Measures the height at the coordinate position in the center of the step.
• Linemeasurement
Measures the height along the step length direction center line.
Sampling Pitch (mm)
This is displayed if "Line measurement" is selected for the "Measure Type". Sets the pitch at which height
measurement is performed.
Reference value: 0.001 mm
Retry
Sets whether to retry height measurement. Measurement is performed as follows if "Use" is selected.
• Ifthemeasurementtypeis"Pointmeasurement",measurementisperformedafterrotatingthehead
180°.
• Ifthemeasurementtypeis"Linemeasurement",theheadperformsmeasurementasitmovesand
returns.