Non-Contact Surface Roughness/Profile Measuring ...

Non-contact surface roughness/profile measuring Instruments

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A non-contact measuring instrument uses light in place of the stylus of used in a contact-type measuring instrument. These instruments come in multiple types, such as confocal and white light interference, and vary depending on the principle used. There are also a variety of contact-type detectors that have been changed into non-contact instruments by replacing the probe with optical sensors and microscopes. We will use KEYENCE's 3D laser scanning microscope, the VK-X Series, as an example to explain the principles of confocals.

A 3D laser scanning microscope uses the confocal principle, and a laser as the light source, to measure the asperity of the target's surface.

The system is configured as shown in the figure on the right. Set the sample on the XY stage of the measurement unit and perform the 3D scan.

With KEYENCE's VK-X Series, an X-Y scanner is embedded in the measurement unit. The laser light source scans across the surface of the target in the X and Y directions and acquires the surface data.

The scanning principles are explained below.

3D laser scanning microscope measurement principles

1. 1. The laser beam emitted from the laser light source scans the target surface.
2. 2. The laser light is reflected from the target surface, passes through the half mirror, and enters the light-receiving element. At this point, the laser intensity of the received reflection, as well as the height position of the lens, are recorded by the microscope. The laser microscope acquires 1024 data points in the X direction and 768 data points in the Y direction, and records the intensity and lens height for each point (1024 x 768 = 786432 points).
3. 3. When the scan of one surface finishes, the objective lens moves in the Z direction by the specified pitch.
4. 4. The same surface scan is performed again for the surface that the objective lens has moved to, and the laser’s reflected light intensity is checked over 1024 × 768 points. The reflected light intensity of each pixel is compared with the reflected light intensity recorded in memory as “v”. If the new reflected light intensity is higher, the reflected light intensity data and lens height position data are overwritten.
5. 5. The operations of steps (2) to (4) are repeated for the specified Z distance.
6. 6. Finally, for each of the 1024 × 768 pixels, the reflected light intensity and lens height position are recorded in memory at the time when the strongest laser light reflection was received.
7. 7. For optical microscopes, the WD (Working Distance: the distance from the objective lens to the target) when the objective lens is in focus is constant. If it is assumed that the image is in focus when the reflected light intensity is at maximum, it is possible to obtain 3D data in the observation area (1024 × 768 pixels) of the microscope by stitching together the lens height positions from the different times that the image was in focus, that is, when the reflected light intensity was at its maximum.

3D laser scanning microscope accuracy

The ability to accurately read the peak value of the reflected light intensity has a large effect on the measurement accuracy of laser confocal measurement systems.

There are many ways to construct a confocal optical system. The pinhole confocal method used in KEYENCE's 3D laser scanning microscope is explained below:

With the pinhole confocal method, a pinhole is placed in front of the light-receiving element. The pinhole has a diameter of just tens of micrometers and has the role of blocking reflected light when the image is not in focus.

When the image is in focus (see figure below), the reflected light is received by the light-receiving element in both the normal optical system and the laser confocal optical system. When the image is not in focus, the reflected light (out-of-focus light) enters the light-receiving element for normal optical systems, but is blocked by the pinhole when using the pinhole confocal method. In other words, the structure is such that the reflected light only enters the light-receiving element when the image is in focus.

The pinhole's effect on the received light is illustrated in the figure on the right. With the laser confocal, the reflected light intesntiy peaks at the focal point. On the other hand, the normal optical system results in a gently sloping curve.

The lack of a peak at the focal point makes it difficult to detect when the target is in focus.

Laser XY-direction resolution

For non-contact systems, the light beam spot corresponds to the stylus of contact-systems. Non-contact systems do not directly touch the target, therefore they do not have the disadvantages of stylus wear and the risk of scratching a sample. The size of the beam spot diameter is important in order to accurately measure the profile of a sample. Generally, the smaller the beam spot diameter, the smaller the features that can be measured.

Laser microscopes use lasers for their light sources, which makes it possible to create an extremely small beam spot.

When using a 150x (N.A. = 0.95) objective lens, the VK-X Series, which uses a 404 nm violet laser for its laser light source, achieves a resolution of 0.13 μm 0.005 Mil for the planar spatial resolution. A laser microscope can measure asperity with a very small width, which cannot be measured with contact-type systems.

Digital Surface Profile Gauge Market Growth Analysis and Forecast 2024: [86 Page Report]

According to our latest study, the global Digital Surface Profile Gauge market size was valued at USD 221.2 million in 2023 and is forecast to a readjusted size of USD 339.6 million by 2030 with a CAGR of 6.3% during - (Get a Sample Copy of the Digital Surface Profile Gauge Report 2024)

The Digital Surface Profile Gauge Market analysis report is an invaluable tool for companies, investors, and stakeholders seeking in-depth insights into the market. It not only forecasts market trends, opportunities, Applications (LaboratorIndustrial Application), and Types (Hand-held, Desktop), but also addresses potential challenges that may affect the industry's trajectory over the upcoming years.

Who are the Digital Surface Profile Gauge Companies or Manufacturers leading global Market?

• Elcometer
• Testex
• Winoa Group
• DeFelsko
• NOVOTEST
• Raj Scientific Company
• Caltech Engineering Services
• Obsnap Instruments
• ElektroPhysik

Digital Surface Profile Gauge Market Attributes:

Digital Surface Profile Gauge Market Valuation in 2023: The global was valued at USD 221.2 million in 2023. This indicates the initial market size at the beginning of the specified period.

Digital Surface Profile Gauge Market Projected Market Size in 2030: The market is expected to grow substantially, reaching a value of USD 339.6 million by the year 2030. This demonstrates a significant increase in market value over the course of six years.

Compound Annual Growth Rate (CAGR): The estimated Compound Annual Growth Rate (CAGR) for the Digital Surface Profile Gauge market during the period from 2023 to 2030 is 6.3%. CAGR reflects the average annual growth rate over the specified timeframe.

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Brief Highlight on Digital Surface Profile Gauge Market Analysis Report:

A digital surface profile gauge offers a simple, robust, and easy-to-use solution for assessing the surface profile of shot-blasted metal parts. These gauges provide instant measurement values and are available in different configurations for checking flat or curved surfaces.

The Digital Surface Profile Gauge Market report combines extensive quantitative analysis and exhaustive qualitative analysis, ranges from a macro overview of the total market size, industry chain, and market dynamics to micro details of segment markets by type, application and region, and, as a result, provides a holistic view of, as well as a deep insight into the Digital Surface Profile Gauge market covering all its essential aspects.

For the competitive landscape, the report also introduces players in the industry from the perspective of the market share, concentration ratio, etc., and describes the leading companies in detail, with which the readers can get a better idea of their competitors and acquire an in-depth understanding of the competitive situation. Further, mergers & acquisitions, emerging market trends, the impact of COVID-19, and regional conflicts will all be considered.

The reports will be useful in answering the following questions:

• What's the current scope of the Digital Surface Profile Gauge market request in various regions?
• How is the Digital Surface Profile Gauge market demand divided into different product type?
• How is the demand predicted to develop in the future?
• What's the demand possibility compared to other countries?

Global Digital Surface Profile Gauge Market: Drivers and Restrains

The research report has incorporated the analysis of different factors that augment the market’s growth. It constitutes trends, restraints, and drivers that transform the market in either a positive or negative manner. This section also provides the scope of different segments and applications that can potentially influence the market in the future. The detailed information is based on current trends and historic milestones. This section also provides an analysis of the volume of production about the global market and about each type from 2018 to 2030. This section mentions the volume of production by region from 2018 to 2030. Pricing analysis is included in the report according to each type from the year 2018 to 2031, manufacturer from 2018 to 2022, region from 2018 to 2022, and global price from 2018 to 2031.

A thorough evaluation of the restrains included in the report portrays the contrast to drivers and gives room for strategic planning. Factors that overshadow the market growth are pivotal as they can be understood to devise different bends for getting hold of the lucrative opportunities that are present in the ever-growing market. Additionally, insights into market expert’s opinions have been taken to understand the market better.

Global Digital Surface Profile Gauge Market: Segment Analysis

The research report includes specific segments by region (country), by manufacturers, by Type and by Application. Each type provides information about the production during the forecast period of 2018 to 2031. by Application segment also provides consumption during the forecast period of 2018 to 2032. Understanding the segments helps in identifying the importance of different factors that aid the market growth.

Based on TYPE, the Digital Surface Profile Gauge market from 2023 to 2032 is primarily split into:

• Hand-held
• Desktop

Based on applications, the Digital Surface Profile Gauge market from 2023 to 2032 covers:

AJR Product Page

Additional reading:
How to Measure Surface Profile using the Elcometer 224 ...

• LaboratorIndustrial Application

Highlights of The Digital Surface Profile Gauge Market Report:

How to Choose Surface Roughness Gauge?

Key offerings from the Global Digital Surface Profile Gauge Market Report:

Market Size Estimates: Digital Surface Profile Gauge market size estimation in terms of value and sales volume from 2018-2031

Market Trends and Dynamics: Digital Surface Profile Gauge market drivers, opportunities, challenges, and risks

Macro-economy and Regional Conflict: Influence of global inflation and Russia & Ukraine War on the Digital Surface Profile Gauge market

Segment Market Analysis: Digital Surface Profile Gauge market value and sales volume by type and by application from 2018-2031

Regional Market Analysis: Digital Surface Profile Gauge market situations and prospects in North America, Asia Pacific, Europe, Latin America, Middle East, Africa

Country-level Studies on the Digital Surface Profile Gauge Market: Revenue and sales volume of major countries in each region

Digital Surface Profile Gauge Market Competitive Landscape and Major Players: Analysis of 10-15 leading market players, sales, price, revenue, gross, gross margin, product profile and application, etc.

Trade Flow: Import and export volume of the Digital Surface Profile Gauge market in major regions.

Digital Surface Profile Gauge Industry Value Chain: Digital Surface Profile Gauge market raw materials & suppliers, manufacturing process, distributors, downstream customers

Digital Surface Profile Gauge Industry News, Policies & Regulations

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Regional Insights: 

Geographically, the detailed analysis of consumption, revenue, market share and growth rate, historical data and forecast (2018-2030) of the following regions are covered in this report:

United States

Europe

China

Japan

India

Southeast Asia

Latin America

Middle East and Africa

Digital Surface Profile Gauge Market Report Outline:

Chapter 1 begins with the Digital Surface Profile Gauge market scope and definition, product segment introduction, global overall market size, as well as market dynamics scenarios such as opportunities, challenges, and industry development trends under inflation. It offers a high-level view of the current state of the Digital Surface Profile Gauge market and its likely evolution in the short to mid-term and long term.

Chapter 2 provides Digital Surface Profile Gauge industry chain analysis, covering raw materials analysis, cost structure, price estimate, and forecast, along with price-impacting factors, downstream channels, and major customers. It aims to help readers to grab insights into product upstream, midstream, and downstream fields.

Chapter 3 depicts Digital Surface Profile Gauge industry competitive analysis regarding market concentration rate, saturation rate, feasibility analysis from new entrants, as well as substitute's status and trends. It indicates the developing space and prospects of the current industry.

Chapter 4 analyzes extensive company profiles, comprising company basic info, product or service profiles, and sales, price, value, gross, and gross margin 2018-2023. It incorporates the Digital Surface Profile Gauge market ranking, benchmarks, and company business portfolio.

Chapter 5 presents trade statistics of import and export volume from 2018-2023, demonstrating domestic and international market comparisons in specific countries.

Chapters 6-10 highlight Digital Surface Profile Gauge market status at the regional and country levels, including 5 major regions of North America, Europe, Asia Pacific, the Middle East and Africa, and Latin America. The region and country list in the sample is only for reference, and it can be adjusted as required.

Chapter 11 involves geographical market figures of sales, value, market share, and growth rate. Economic, social, environmental, technological, and political factors have been taken into consideration while assessing the growth of each specific region.

Chapters 12-13 evaluate the Digital Surface Profile Gauge market based on different types and applications. It focuses on sales and value of 2018-2023 from both vertical and horizontal perspectives.

Chapters 14-15 elaborate on the Digital Surface Profile Gauge market forecast data from 2023-2031, segmented by types and applications, regions, and major countries, helping readers to know future aspects and growth trends.

Chapter 16 ends with an elaboration of data sources and research methodology. All possible parameters that affect the markets covered in this research study have been accounted for, viewed in extensive detail, verified through primary research, and analyzed to get the final quantitative and qualitative data.

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Some Major Points from the Table of Contents:

1 Market Overview     1.1 Product Overview and Scope of Digital Surface Profile Gauge     1.2 Market Estimation Caveats and Base Year     1.3 Market Analysis by Type     1.4 Market Analysis by Application     1.5 Global Digital Surface Profile Gauge Market Size & Forecast 2 Manufacturers Profiles 3 Competitive Environment: Digital Surface Profile Gauge by Manufacturer     3.1 Global Digital Surface Profile Gauge Sales Quantity by Manufacturer (2019-2024)     3.2 Global Digital Surface Profile Gauge Revenue by Manufacturer (2019-2024)     3.3 Global Digital Surface Profile Gauge Average Price by Manufacturer (2019-2024)     3.4 Market Share Analysis (2023)     3.5 Digital Surface Profile Gauge Market: Overall Company Footprint Analysis     3.6 New Market Entrants and Barriers to Market Entry     3.7 Mergers, Acquisition, Agreements, and Collaborations 4 Consumption Analysis by Region     4.1 Global Digital Surface Profile Gauge Market Size by Region     4.2 North America Digital Surface Profile Gauge Consumption Value (2019-2030)     4.3 Europe Digital Surface Profile Gauge Consumption Value (2019-2030)     4.4 Asia-Pacific Digital Surface Profile Gauge Consumption Value (2019-2030) 5 Market Segment by Type     5.1 Global Digital Surface Profile Gauge Sales Quantity by Type (2019-2030)     5.2 Global Digital Surface Profile Gauge Consumption Value by Type (2019-2030)     5.3 Global Digital Surface Profile Gauge Average Price by Type (2019-2030) 6 Market Segment by Application     6.1 Global Digital Surface Profile Gauge Sales Quantity by Application (2019-2030)     6.2 Global Digital Surface Profile Gauge Consumption Value by Application (2019-2030)     6.3 Global Digital Surface Profile Gauge Average Price by Application (2019-2030) 7 North America     7.1 North America Digital Surface Profile Gauge Sales Quantity by Type (2019-2030)     7.2 North America Digital Surface Profile Gauge Sales Quantity by Application (2019-2030)     7.3 North America Digital Surface Profile Gauge Market Size by Country 12 Market Dynamics     12.1 Digital Surface Profile Gauge Market Drivers     12.2 Digital Surface Profile Gauge Market Restraints     12.3 Digital Surface Profile Gauge Trends Analysis     12.4 Porters Five Forces Analysis 13 Raw Material and Industry Chain     13.1 Raw Material of Digital Surface Profile Gauge and Key Manufacturers     13.2 Manufacturing Costs Percentage of Digital Surface Profile Gauge     13.3 Digital Surface Profile Gauge Production Process     13.4 Digital Surface Profile Gauge Industrial Chain 14 Shipments by Distribution Channel     14.1 Sales Channel     14.2 Digital Surface Profile Gauge Typical Distributors     14.3 Digital Surface Profile Gauge Typical Customers 15 Research Findings and Conclusion

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Key Questions Answered 1. How big is the global Digital Surface Profile Gauge market? 2. What is the demand of the global Digital Surface Profile Gauge market? 3. What is the year over year growth of the global Digital Surface Profile Gauge market? 4. What is the total value of the global Digital Surface Profile Gauge market? 5. Who are the major players in the global Digital Surface Profile Gauge market?

 

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