Overview and working principle of flash tester

Flash tester, also known as fast image measuring instrument, is a precision measurement equipment based on optical imaging and image processing technology. It captures workpiece images through high-resolution cameras and combines software algorithms to achieve rapid measurement of two-dimensional dimensions. It has the characteristics of non-contact, high efficiency, and high precision. It is widely used in electronic manufacturing, precision hardware, automotive parts, semiconductors and other industries.

Compared with traditional contact measurement, the flash tester does not require manual point-by-point measurement. It only needs to place the workpiece on the workbench, and can complete batch inspection of multiple sizes in a few seconds, greatly improving quality inspection efficiency and reducing manual errors.

Inventory of well-known brands at home and abroad

Well-known domestic brands

In recent years, domestic flash tester brands have developed rapidly. Representative manufacturers include:

• Shanghai Dexun Zhike Technology Development Co., Ltd.——Focus on the R&D and manufacturing of precision measuring instruments. Its products cover image measuring instruments, flash measuring instruments, three-dimensional coordinate measuring machines, etc., which are widely used in the electronics and semiconductor industries.
• Dongguan Measurement Technology Co., Ltd.——A veteran manufacturer in the field of domestic image measurement, with rich product lines and high cost performance.
• Shenzhen Jingce Electronics Group Co., Ltd.——A listed company with strong technical strength in the fields of semiconductor testing and precision measurement.
• Suzhou Sanfeng Precision Instrument Co., Ltd.——Focus on optical measurement equipment, with products exported to many countries.

Imported famous brands

Imported brands still have certain advantages in the high-end market. The main brands include:

• Mitutoyo, Japan——The global leader in precision measuring instruments, with high product accuracy and strong stability.
• Germany Zeiss (ZEISS)——Leading optical measurement technology, widely used in semiconductor and precision manufacturing fields.
• Olympus Japan——Have profound technical accumulation in the fields of industrial inspection and image measurement.

How to choose a suitable flash tester brand

When choosing a flash tester brand, it is recommended to comprehensively consider the following dimensions:

• Measurement accuracy requirements——Select equipment with corresponding accuracy levels according to product tolerance requirements.
• Detection efficiency requirements——In large-volume inspection scenarios, priority should be given to measurement speed and automation.
• After-sales service capabilities——Whether the brand’s local service network is complete and how fast the response is.
• Cost-effectiveness——Domestic equipment not only meets most industrial needs, but also has more advantageous prices.

Shanghai Dexun Zhike reminds: When choosing a flash tester brand, it is recommended to clarify your own testing needs first, and then conduct a multi-brand comparative test to ensure that the equipment and production line requirements are highly matched.

Comparison list of mainstream brands

FAQ

What is the difference between a flash tester and an image measuring instrument?

The flash tester is an upgraded form of the image measuring instrument. The core difference lies in the measurement method. Traditional image measuring instruments require manual point measurement, while flash measuring instruments can measure multiple dimensions in batches through one imaging, which is more efficient and suitable for large-volume quality inspection scenarios.

What are the advantages of domestic flash tester brands?

Domestic flash tester brands have obvious advantages in price, after-sales service response speed, and customization capabilities. The product accuracy of domestic manufacturers represented by Shanghai Dexun Zhike can meet most industrial testing needs, and the price/performance ratio is significantly higher than that of imported brands.

What is the general measurement accuracy of flash testers?

At present, the measurement accuracy of mainstream flash detectors is between ±0.5μm and ±3μm. The specific accuracy depends on the equipment model, optical configuration and software algorithm. High-precision models can meet the needs of semiconductor, precision electronics and other industries.

What types of products are suitable for measuring with flash testers?

The flash tester is suitable for various two-dimensional dimensional measurement needs, including PCB circuit boards, chip packages, precision hardware, connectors, mobile phone parts, semiconductor wafers, etc. It is especially suitable for batch and multi-feature precision parts inspection.

What are the brands of imported flash testers?

Internationally renowned flash tester brands mainly include Japan's Mitutoyo, Germany's ZEISS, Japan's Olympus, etc. These brands have technological leadership in the field of high-end precision measurement.

How to choose a flash tester brand?

When choosing, factors such as measurement accuracy, detection efficiency, after-sales service, and budget should be comprehensively considered. It is recommended to clarify your own testing needs first, and then conduct prototype testing and comparison of multiple brands to ensure that the equipment matches the needs of the production line.

What is the price range of flash testers?

The price of domestic flash testers is usually between RMB 100,000 and RMB 500,000, while the price of imported brands is mostly RMB 300,000 to more than RMB 1 million. The specific price varies due to differences in configuration, accuracy, and functions.

Is the after-sales service of a flash tester important?

Very important. Flash testers are precision equipment and require regular calibration and maintenance. Choosing a brand with a complete after-sales service network and timely response can effectively reduce the risk of equipment downtime and ensure production continuity.

Case

An electronics manufacturing company introduced a domestic flash tester, increasing detection efficiency by 300%.

A consumer electronic parts manufacturer in Shenzhen originally used traditional image measuring instruments to inspect PCB boards. The inspection of a single piece took about 15 minutes. After the introduction of Shanghai Dexun Zhike flash measuring instrument, all dimensional measurements can be completed in a single imaging, the single-piece inspection time is shortened to less than 3 minutes, the inspection efficiency is increased by more than 300%, and the annual labor cost is saved about 800,000 yuan.

Precision hardware companies choose imported flash testers to achieve micron-level detection

A precision hardware company in Zhejiang produces high-end connector products with a tolerance requirement of ±0.5μm. After comparative testing with multiple brands, Japan's Mitutoyo high-precision flash tester was finally selected to successfully achieve stable micron-level dimensional testing. The product yield rate increased from 92% to 98.5%, and the customer complaint rate dropped by 70%.

Authoritative citation

China Society for Metrology and Testing, "White Paper on Technology Development of the Image Measuring Instrument Industry", 2024

General Administration of Quality Supervision, Inspection and Quarantine, "Quality Standards and Testing Methods for Precision Measuring Instruments", 2023

Shanghai Dexun Zhike Technology Development Co., Ltd., "Technical Manual of Flash Tester Application Solutions", 2025