Visual Go/No Go Gages
Visual Go/No Go Gages
(OP)
Does anyone know of a standard or a best practice for tolerancing a visual gage. The gage is used in conjuction with an individuals sight to determine pass or fail condition. Even assuming perfect eyesight can you actually differentiate between 0.1mm, 0.01mm, 0.001mm, and 0.0001mm.
What can the human eye actually see accurately?
We would like to correctly tolerance these sight gages on their prints, keeping a accuracy ratio of 10:1. We don't want to over tolerance the gage and add additional cost to our process.
There has to be some type of standard or best practice for this type of measurement.
What can the human eye actually see accurately?
We would like to correctly tolerance these sight gages on their prints, keeping a accuracy ratio of 10:1. We don't want to over tolerance the gage and add additional cost to our process.
There has to be some type of standard or best practice for this type of measurement.





RE: Visual Go/No Go Gages
Northern Gauge Sherwood Park Ab
RE: Visual Go/No Go Gages
My question is how do I determine the accuracy of the eye. What error am I introducing into my measurement using these devices. They are adequate, but adequate is the question.
RE: Visual Go/No Go Gages
Hypothetically, the accuracy of the gage is essentially the line width of the reticle marking, but eye-relief and other factors could change that.
TTFN