Parts are available in frequency ranges of 0.25 to 5 cy/mm, 2.5 to 50 cy/mm, and 25 to 500 cy/mm.
Equivalent cycles increase logarithmically; with two full cycles in each range. Ideally suited for scanning and micro densitometry. Each group of 2 bars and 2 spaces is progressively smaller in size.
|Billable Weight:||2 lbs|
1in. x 3 in. – 25.4mm x 75.2mm
Equivalent to 2.50 to 50 cy/mm