Point Micrometer
![]() |
| Powered by phpBay Pro |

How measure thickness (1mm) of a clear plastic piece accurate to the micron; the measure points are recessed?
The measurement points are recessed, but flat. In other words, super-accurate calipers (if they existed) wouldn't work because they wouldn't be able to touch the recesses on each side of the piece. A micrometer gage may work but it's pushing the limit. There are some optical systems out there, but I'm concerned about the light refraction (index of refraction) resulting in lots of math.
There are other simple thickness measurements based on the material itself.
you could use infra-red absorption. check to see if the plastic has an absorption spectrum. then, using the correct IR wavelength, the thickness is inversly proportional to the transmitted light.
this works for UV measurements as well.
IR Laser metrology is possible.
If this is done on a moving film, the recessed points will produce a digital signal. Thickness and quality limits could be established pretty easily.
CNC Ring Coiler/Continuous Kine-Coiler Four Slide
![]() |
![]() 2 to 25 x 00005 Electronic Digital Internal 3 Point Micrometer New US $400.00
|
![]() 35 40 3 POINT INTERNAL MICROMETER NEW US $389.00
|
![]() NEW SPI Electronic Point Micrometer 3 4 Range in Fitted Case US $372.80
|
![]() 30 35 3 POINT INTERNAL MICROMETER NEW US $349.00
|
![]() NEW SPI Electronic Point Micrometer 2 3 Range in Fitted Case US $341.30
|
![]() 25 30 3 POINT INTERNAL MICROMETER NEW US $329.00
|
![]() SPI 0275 035 000005 Electronic Three Point Internal Micrometer 13 541 8 US $257.99
|
![]() ◥◣MITUTOYO DIGITAL 0 1 OUTSIDE POINT MICROMETER◢◤ US $249.00
|
![]() 16 20 3 POINT INTERNAL MICROMETER NEW US $248.00
|
![]() 12 16 3 POINT INTERNAL MICROMETER NEW US $248.00
|
![]() 20 25 3 POINT INTERNAL MICROMETER NEW US $248.00
|
![]() SPI 13 542 6 3 Point Internal 035 425 Specialty Micrometer US $239.99
|
![]() 10 12 3 POINT INTERNAL MICROMETER NEW US $228.00
|
![]() 2 25 Electronic three point micrometer 13 550 9 NEW US $218.99
|
![]() NEW SPI Point Micrometer 1 2 Range in Fitted Case US $218.60
|
![]() SPI 13 545 9 Electronic Three Point Internal Micrometer 065 08 000005 US $217.53
|
![]() Mitutoyo Digimatic Point Micrometer No 342 301 US $205.00
|
![]() MITUTOYO TOOLS 0 1 POINT MICROMETER 112 285 NEW US $199.99
|
![]() Wilson Wolpert 270 06DDL Digitronic Point Micrometer US $150.00
|
![]() MITUTOYO TOOLS 0 25mm POINT MICROMETER 112 153 NEW US $149.99
|
![]() MITUTOYO TOOLS 0 1 POINT MICROMETER 112 273 NEW US $149.99
|
![]() NEW SPI Point Micrometer 0 1 Range in Fitted Case US $126.90
|
![]() ◥◣MITUTOYO 0 25MM POINT MICROMETER◢◤ US $125.00
|
![]() Mitutoyo 112 225 carbide point micrometer CPM30 1 US $125.00
|
![]() Starrett point 575 Micrometer tool screw thread 14 18 US $118.88
|
![]() Mitutoyo112 370 1 2 Point Micrometer 001 US $115.00
|
![]() NOS Blue Point USA made 1 2 Outside MICROMETER 0001 Grad MICB2 US $112.50
|
![]() Blue Point Micrometer Set 3pc US $150.00
|
![]() Mitutoyo 112 201 0 25MM POINT Micrometer AA1310 1 US $100.00
|
![]() Mitutoyo Point Micrometer 1 2 in Range US $100.00
|
![]() 3 Key Electronic Single Point Micrometer IP54 0 1 US $99.95
|
![]() 3 Key Electronic Single Point Micrometer IP54 1 2 US $99.95
|
![]() 3 Key Electronic Single Point Micrometer IP54 2 3 US $99.95
|
![]() Starrett point 585 1 2 Micrometer tool screw thread 4 1 2 to 7 US $97.88
|
![]() Starrett point 210 B Micrometer tool screw thread US $95.88
|
![]() SPI 12 398 4 1 2 0001 Point Micrometer US $83.15
|
![]() SPI 75 100mm 001mm Point Micrometer 14 073 1 US $82.49
|
![]() SPI 50 75mm Point Micrometer 14 072 3 AH2 US $81.55
|
![]() Mitutoyo 112 275 45° 1 2 001 Point Micrometer US $79.98
|
![]() Mitutoyo 0 1 001 142 225 Point Micrometer US $79.98
|
![]() SPI Point Micrometer 75 100mm 14 073 1 NEW AU3 US $79.95
|
![]() ◥◣MITUTOYO 112 225 0 to 1 OUTSIDE 30° DEGREE POINT MICROMETER◢◤ US $79.00
|
![]() Point Micrometer 1 2 NSK Japanese W 643 1 US $69.99
|
![]() FOWLER 0 1 Inch POINT MICROMETER 45 DEGREES w CASE SUPER CLEAN FREE SHIPPIN US $69.99
|
![]() Fowler 45° 1 2 001 Point Micrometer US $69.98
|
![]() SPI 12 398 4 Point Micrometer 1 2 0001 NEW AS5 US $69.95
|
![]() SPI 50 75mm 001mm Point Micrometer 14 072 3 US $66.74
|
![]() SPi 0 1 Mechanical Outside Point Micrometer 25mm 50mm 14 071 5 US $61.99
|
![]() 0 1 Mitutoyo Point Micrometer US $60.00
|
![]() Moore Wright Point Tip Micrometer 100 125mm 966mm US $59.99
|
![]() Mitutoyo 45° 0 1 001 Point Micrometer w case US $59.98
|
![]() Mitutoyo 112 273 45° 0 1 001 Point Micrometer US $59.98
|
![]() Starrett point 575 B Micrometer tool screw thread 14 to 20 US $59.88
|
![]() 3 Point Micrometers Resolution 00001” US $59.00
|
![]() SPI 12 397 6 Point Micrometer 1 2 001 NEW AS5 US $54.95
|
![]() SPI 12 395 0 0 1 001 Point Micrometer US $52.99
|
![]() 2 Point Micrometers Resolution 00001” US $52.00
|
![]() SPECIAL PRICE BRAND NEW 1 2 POINT MICROMETER US $49.99
|
| Powered by phpBay Pro |


US $899.95


































































































