Product Features
Adopting imported Philips long-life tungsten halogen lamps to meet the needs of long-term use of projectors;
The workbench has a large range of motion and strong load-bearing capacity, suitable for measuring large-sized parts;
The projection screen has a large area, which allows for complete display and high measurement efficiency when comparing and measuring various large-sized and complex parts;
High precision objective lens turntable, easy to change magnification, accurate positioning;
The workbench can rotate ± 15 °, making it easy to measure parts with helix angles and the like;
Adopting advanced grating sensor digital display technology and data processing system, with small errors and high efficiency;
JT7A is equipped with a digital display box, which can facilitate digital display and has data processing functions;
JT7B is equipped with a computer, PCI card, two coordinate measurement software, and a handheld control box, which can achieve electric control measurement;
JT7E adopts Renishaw metal grating with CNC automatic control, which can achieve fully automatic control of measurement and data processing.

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Product Usage
This instrument can conveniently measure parameters such as length, angle, contour, and surface shape of various complex shaped parts, such as gears, cams, threads, various templates, various cutting tools, hydraulic components, etc. It is particularly suitable for measuring the shape and size of large-sized workpieces and is widely used in steam turbine factories, aerospace engine factories, tool and mold manufacturing factories, and related mechanical manufacturing industries.

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technical parameter
Projection screen
Projection screen size: Φ1 2 0 0 mm
Rotation differentiation value: 1′
Workbench
Table size: 800×230
Measurement range:
Vertical: 400 mm
Vertical direction: 250 mm
Rotation: ±15°
Horizontal (focusing): 150 mm
Measurement resolution: 0.001 mm
Instrument accuracy: （4+L/50）μm， Where L is the length of the test piece, unit: mm
objective lense:

Optical axis of objective lens
Maximum distance from the tabletop: 255mm
Minimum distance from the countertop: 55mm
Top needle holder
Maximum allowable diameter: φ300mm
Maximum allowable length: 450mm
Vertical workbench light hole size: 310mm×205mm
Vertical circular workbench light hole size: φ130mm
Lighting source
Translucent tungsten halogen lamp 24V250W
Reflective lighting incandescent lamp 16V150 W
Instrument dimensions (mm)
(Length x Width x Height) 3500 x 2320 x 2250
Instrument weight: 4000kg
Software functions:
Two coordinate measurement software
1、 Collection function: Collect points, lines, circles, and arcs.
2、 Build function: Collect points to construct lines, circles, and arcs.
3、 Combination calculation function:
Combining points to calculate the distance between two points and the coordinates of the midpoint;
Calculate the distance between points and lines by combining them;
Calculate the coordinates and angles of intersection points using the combination of "intersecting lines";
Calculate the centerline information of two straight lines using the combination of "line to line centering";
Combining circles to calculate intersection points and center distance information;
Combine "circle and line" to calculate intersection points, center to line information.
4、 Geometric tolerance processing function:
Roundness measurement of circles and arcs
Straightness measurement
Coaxiality measurement
Symmetry measurement
Position measurement
5、 Coordinate system transformation:
Coordinate transformation between Cartesian coordinate system and polar coordinate system
Establish new coordinates and correct coordinates
6、 Data output:
Can be exported to AUTOCAD, EXCEL, WORD for input
One step data processing.

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