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Duzhi Instrument (Shanghai) Co., Ltd
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Duzhi Instrument (Shanghai) Co., Ltd

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    15921165535

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    No. 418 Huajing Road, Shanzhong Science and Technology Park, Waigaoqiao Free Trade Zone, Pudong New Area, Shanghai

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East China Taylor Contour Instrument Agent Form Talysurf PGI 840

NegotiableUpdate on 01/11
Model
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Overview
The FomTalkysuriPG1840 roughness profiler has a 200mm horizontal travel drive box that can move vertically along the column within a range of 450mm to accommodate measurements of workpieces at different heights. The drive box is equipped with a horizontal reference with high straightness accuracy to ensure measurement accuracy
Product Details

product description


FormTalysurf PG1840 roughness profiler

The FomTalkysuriPG1840 roughness profiler has a 200mm horizontal travel drive box that can move vertically along the column within a range of 450mm to accommodate measurements of workpieces at different heights. The drive box is equipped with a horizontal reference with high straightness accuracy to ensure measurement accuracy. There is a PGI type sensor under the drive box, which has a large range and extremely high resolution. The sensor is equipped with a measuring needle. During measurement, the measuring needle contacts the surface of the workpiece and moves horizontally. The up and down swing of the measuring needle is transmitted to the electrical box and computer through the sensor, analyzed by computer software, and printed by a printer. The movement of each axis of the instrument can be controlled by a joystick or computer.

Precision machining machines, such as single point diamond lathes, make it possible to process non spherical lenses with very small tolerance requirements, and the wavefront difference is also reduced to negligible values. In order to achieve such high levels of accuracy, there must be corresponding levels of measurement. The Form Talysurf PGI 840 has various functions required, and the measurement results of this measurement system can be directly input into the machine tool, forming a 'feedback loop'. Special measuring needles can be designed to meet the needs of users, making the application range of PGI 840 more extensive.


Function description:

The FormTalysurf PGl840 roughness profiler is a specialized tool produced by the British company Taylor Hopson for measuring shape errors and analyzing roughness on various optical component surfaces, including planar, spherical, non spherical, and diffractive optical surface profile measurements. Its main functions are as follows:
1. Shape error measurement, including non spherical shape error measurement, linear shape error (straightness), and circular arc.
2. Contour measurement, including radius and angle analysis;
3. Surface roughness measurement. The system has optimized processing capabilities that interface with most optical processing equipment, allowing measurement data to be applied to processing equipment




Main features:

The 120mm drive box has a straightness of 0.25 μ m and 120mm
8mm range, 0.8nm vertical resolution
The range of the measuring needle arm with a length of 120mm can reach 16mm
The low noise of the system (RMS only 2nm) provides the market with the ability to measure optical surface roughness at an advanced level





PGI 840- Outstanding New Generation Instrument

PGI 840 has industry-leading specifications

Form Talysurf has continuously developed over the past 20 years, providing continuous improvement for our clients.

The PGI 840 non spherical measurement system provides a new level of performance for the following applications:

Diamond turning or ultra precision grinding molds for plastic or glass optical components
Non spherical mirrors for laser applications
• Digital cameras, projectors, etc
Infrared and diffractive optical elements with a diameter of up to 120 millimeters



Form Talysurf PGI 840 is specifically developed for the optical industry. Every aspect of manufacturing

All have reached a high level, thus achieving excellent system performance.
120mm drive device, straightness 0.25 μ m, 120mm
8mm range, 0.8nm vertical resolution
The 120mm measuring needle arm can achieve a measurement range of 16mm
2nm RMS system noise provides excellent optical surface smoothness measurement function

A wide range of optional accessories, including measuring needles suitable for demanding applications



Non spherical analysis software


Taylor Hobson's Aspherics analysis software integrates many specialized tools

New features designed to meet the needs of Aspherics Optics manufacturers, including:


• Aspheric Form Analysis
• User Selectable Radius Optimisation and
λs Filter
• Report Generation Capability
• SAG Tables
• Astigmatism Analysis
• Derived Coefficients Module (optional)
• Asphero-Diffractive Analysis (optional)



Intended to meet research and production needs

Precision machining machines, such as single point diamond lathes, enable non spherical surfaces with minimal tolerance requirements

The processing of the lens becomes possible, and the wavefront difference is reduced to negligible values. In order to obtain

This high level of accuracy requires a corresponding level of measurement. Form Talysurf PGI 840

Having various functions as required, the measurement results of this measurement system can be directly input into the machine tool

Thus forming a 'feedback loop'. Special measuring needles can be designed according to user needs to enable PGI 840

The application scope is broader.




PGI840Specifications:

Horizontal performance
Drive length
120 mm / 0.1 mm (4.7 in / 0.004 in)
Measurement speeddegree
0.1 mm/s, 0.25 mm/s, 0.5 mm/s & 1 mm/s
Drive speed
10 mm/s max (0.39 in/s max)
Small data sampling interval on the x-axis (high)
0.125 µm over 120mm length (5 µin over 4.7 in length)
Small data sampling interval on the x-axis (standard)
0.125 µm [ 0.1 mm to 15 mm length ] ( 5 µin [0.004 in to 0.6 in] )
0.25 µm [ 15 mm to 30 mm length ] ( 10 µin [0.60 in to 1.2 in] )
1 µm [ 30 mm to 120 mm length] ( 40 µin [1.20 in to 4.7 in] )

traightnesserror[Pt](X= length)2
250nm/120mm or [50 + 1.7X] nm (10µin/4.7in or [2 + 1.7X] µin)
Vertical performance
Nominal range(Z)
8mm [ 60mm stylus arm] (0.31 in [2.36 in] )
16mm [120mm stylus arm] (0.62 in [4.72 in] )

resolving power(Z)3
0.8nm@8mm range (0.03 µin@0.31 in) range
Ratio of range to resolution
10,000,000 : 1
Measuring needle arm length, needle tip size, force measurement

60mm arm, 2µm radius conisphere diamond stylus, 1mN force
120mm arm, 0.5mm radius ball, 20mN force

Z-axis nonlinearity (Z=sensor displacement))
(0.07+0.03 Z [mm]) µ m (3+30 Z [inches]) µ in - after calibration
Z-axis indication repeatability (plane diamond probe)
0.1 µm (4 µin)
Z-axis indication repeatability (surface diamond probe)
0.08 µm (3 µin)
Z-axis indication repeatability (curved spherical measuring needle)
0.12 µm (4.5 µin)
Calibrate PT
0.2μm (8μin)


Calibrate with a spherical calibrator

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