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Home › Applications › Measurement Repeatability

Measurement Repeatability

The complete collection of Vektrex news and articles posts related to IESNA LM-85. Vektrex offers equipment to meet LM-85 requirements.

Measurement repeatability is the science of light measurements that are repeatable; at your facility or another facility.  Measurement methods are presented in the LM-85 standard.  LM-85 references the LM-92 standard that is focused on light measurements of UV and UVC devices.  All measurement standards/procedures are focused on repeatability.

Measurement Repeatability

The History of LM85

Spectrometer Int Time

Measurement Repeatability

LM-85 Light Measurements for High Power LEDs

Short Pulses Better Measurements

Measurement Repeatability

Short Pulses For Better Measurements

Repeatable Measurements

Measurement Repeatability

About Current Source Induced LED Photometric Measurement Variations

Plot data normalized for 100% output at 1A, the nominal max current for this device

Source Measure Unit

Use Sub-50µs Pulses to Characterize LED Droop

Seeing a great square pulse is believing it is posible

Measurement Repeatability

A Comparison of LM-85 LED Measurement Techniques

Repeatable Measurements

Measurement Repeatability

Video: Repeatable Measurements – Why they matter and how to get them.

dead reckoning longitude errors

Articles

The Industry Needs Better LED Measurements

Repeatable Measurements with Vektrex SMU

Articles

Is Your Light Measurement Method Undervaluing Your LEDs?

Light measurement repeatability

Videos

Video: Three Steps to Improved LED Light Measurements: Repeatability

Accurate current = better measurements

Videos

Video: Three Steps to Improved LED Light Measurements: Accuracy

Power to drive LED improves measurements

Videos

Video: Three Steps to Improved LED Light Measurements: Power

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