Optical Flat

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why do you have 2 secondary coils and 1 primary coil in an LVDT where as 1 each in a transformer?

please give me applications of
1. lvdt
2. load cell
3. thermocouples
4. pressure gauge
5. optical flat
6. tool makers microscope

LVDT is used as a position sensor and the emfs induced in the two secondaries are compared to determine the position of the object primary is attached to. Example is a machine tool.
Load cell senses weight. It is a strain gauge. Any weighbridge, or weighing machine.
Thermocouples are used to measure temperature, for example in a furnace.
Pressure gauge - Tyre pressure
Optical flat - Tooling
tool makers microscope - Tooling

Discover Optical Flat On eBay Below:

Fowler Micrometer Calibration Sets with Optical Flats 53 670 002
Fowler Micrometer Calibration Sets with Optical Flats 53 670 002
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MITUTOYO 157 901 OPTICAL FLATS PARALLELS
MITUTOYO 157 901 OPTICAL FLATS PARALLELS
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PT 03PB High Precision Optical FlatAluminum Alloy Platform
PT 03PB High Precision Optical FlatAluminum Alloy Platform
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Glass Optical Flat Parallel Set 90 mm
Glass Optical Flat Parallel Set 90 mm
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Glass Optical Flat Parallel Set 40 mm to testing micrometer 25 50 mm NEW USSR
Glass Optical Flat Parallel Set 40 mm to testing micrometer 25 50 mm NEW USSR
$45.00
NEW Carl Zeiss Glass Optical Flat Parallel Set 24 24370mm Glasprfmae 2
NEW Carl Zeiss Glass Optical Flat Parallel Set 24 24370mm Glasprfmae 2
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Optical Flat Parallel Micrometer Calibration 100mm 1965s RARE Glass Platten
Optical Flat Parallel Micrometer Calibration 100mm 1965s RARE Glass Platten
$199.99
Mitutoyo Optical Flat Parallel Micrometer Calibration RARE Glass Platten
Mitutoyo Optical Flat Parallel Micrometer Calibration RARE Glass Platten
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Optical Flat Parallel Micrometer Calibration 60mm Flchig Glass Platten NOS
Optical Flat Parallel Micrometer Calibration 60mm Flchig Glass Platten NOS
$33.99
Optical Flat Parallel Set Micrometer Calibration 90mm 1964s RARE
Optical Flat Parallel Set Micrometer Calibration 90mm 1964s RARE
$149.99
Optical Flat Parallel Micrometer Calibration 80mm 1961s RARE Glass Platten
Optical Flat Parallel Micrometer Calibration 80mm 1961s RARE Glass Platten
$99.99
Optical Flat Parallel Set Micrometer Calibration PM 40mm Flchig Glass Platten
Optical Flat Parallel Set Micrometer Calibration PM 40mm Flchig Glass Platten
$49.99
Optical Flat Parallel Set Micrometer Calibration 15mm Flchig Glass Platten
Optical Flat Parallel Set Micrometer Calibration 15mm Flchig Glass Platten
$33.99
Optical Flat Parallel Set Micrometer Calibration PM90 Flchig Glass Platten
Optical Flat Parallel Set Micrometer Calibration PM90 Flchig Glass Platten
$99.99
Optical Flat Parallel Set Micrometer Calibration PM65 Flchig Glass Platten
Optical Flat Parallel Set Micrometer Calibration PM65 Flchig Glass Platten
$99.99
Optical Flat Parallel Set 0 1 0 25mm Micrometer Calibration Flchig Glass
Optical Flat Parallel Set 0 1 0 25mm Micrometer Calibration Flchig Glass
$60.00
Davidson Optronics 3 Optical Flat 0000006 Flatness
Davidson Optronics 3 Optical Flat 0000006 Flatness
$175.00
Optical Flat Parallel Top 60mm Metrology Planglas interference control
Optical Flat Parallel Top 60mm Metrology Planglas interference control
$26.00
Optical Flat Parallel Bottom 60mm Metrology Planglas interference control
Optical Flat Parallel Bottom 60mm Metrology Planglas interference control
$29.00
Optical Flat Parallel Set Micrometer Calibration15mm ULTRA RARE 1964s USSR NOS
Optical Flat Parallel Set Micrometer Calibration15mm ULTRA RARE 1964s USSR NOS
$79.99
Optical Flat Parallel Micrometer Calibration 60mm ULTRA RARE 1967s USSR NOS
Optical Flat Parallel Micrometer Calibration 60mm ULTRA RARE 1967s USSR NOS
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SPEEDFAM CHEK FLAT Optical Flatness Measuring System w Case Anvils and Manuals
SPEEDFAM CHEK FLAT Optical Flatness Measuring System w Case Anvils and Manuals
$1,200.00
Set Optical Flat Parallels 40mm D 30mm Metrology Planglas Parallel NEW 405
Set Optical Flat Parallels 40mm D 30mm Metrology Planglas Parallel NEW 405
$39.00
Optical Flat Parallel Micrometer Calibration 120mm Flchig Glass Platten
Optical Flat Parallel Micrometer Calibration 120mm Flchig Glass Platten
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Optical Flat Parallel Glass Plate PI 120 D120mm USED USSR Flchig Glass Platte
Optical Flat Parallel Glass Plate PI 120 D120mm USED USSR Flchig Glass Platte
$35.00
MINT Tesa RSD Optical Flat  Gage Blocks Boxed Set Made in Switzerland
MINT Tesa RSD Optical Flat Gage Blocks Boxed Set Made in Switzerland
$157.50
Optical Flat Parallel Bottom 60mm
Optical Flat Parallel Bottom 60mm
$65.99
Optical Flat Parallel Top 60mm
Optical Flat Parallel Top 60mm
$59.99
Optical Flat Parallel Micrometer Calibration 60mm RARE Glass Platten NOS
Optical Flat Parallel Micrometer Calibration 60mm RARE Glass Platten NOS
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Fowler 53 684 003 Calibration Set with Ceramic Blocks and Optical Flats
Fowler 53 684 003 Calibration Set with Ceramic Blocks and Optical Flats
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Optical Flat Parallel Bottom 100mm Flatness 000007mm 00000028
Optical Flat Parallel Bottom 100mm Flatness 000007mm 00000028
$79.95
Lot of 1 USSR Optical Flat Parallel Set Micrometer Calibration 65mm
Lot of 1 USSR Optical Flat Parallel Set Micrometer Calibration 65mm
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USSR Optical Flat Parallel Set Micrometer Calibration 65mm
USSR Optical Flat Parallel Set Micrometer Calibration 65mm
$39.95
USSR Optical Flat Parallel Set Micrometer Calibration 40mm
USSR Optical Flat Parallel Set Micrometer Calibration 40mm
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Optical Flat Parallel Bottom 60mm Flatness 000007mm 00000028 NOS Perfect
Optical Flat Parallel Bottom 60mm Flatness 000007mm 00000028 NOS Perfect
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Van Keuren 2  3 Optical Flat Lot
Van Keuren 2 3 Optical Flat Lot
$100.00
Optical Flats with Two Parallel Faces TESA 02510000 1200mm 12375 mm
Optical Flats with Two Parallel Faces TESA 02510000 1200mm 12375 mm
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Vintage New old stock DoALL Optical Flat Glass 3 000001 accuracy double flats
Vintage New old stock DoALL Optical Flat Glass 3 000001 accuracy double flats
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15x 3 4 Optics Glass Blank Optical FlatI am unsure if this is a flat ET46
15x 3 4 Optics Glass Blank Optical FlatI am unsure if this is a flat ET46
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