Laser Power/Energy Meters: A Precise Measurement Solution Covering Full Power Scenarios

In today's world where laser technology has deeply penetrated industrial manufacturing, scientific research experiments, electronic processing, and other fields, the precise control of laser power and energy directly determines the stability of processes and the reliability of results. Our SHY Series Laser Power/Energy Meters, with high-quality calorimetric probes as the core, integrate embedded technology and flexible design to build a full-scenario measurement system ranging from milliwatt-level low power to kilowatt-level high power. They can not only meet the needs of portable on-site testing but also adapt to long-term online monitoring of industrial equipment, serving as a "precision measurement partner" in the field of laser applications.

I. Core Design of the SHY Series: Precision as the Foundation, Flexibility as the Wing

The core competitiveness of the SHY Series stems from its in-depth grasp of the essence of measurement. All products in the series take high-quality calorimetric probes as the core component. This type of probe can absorb laser energy and convert it into measurable physical signals, enabling precise detection within a wide spectral range. The absorption spectrum covers 0.19-11μm, and the calibrated spectral range includes key wavelength bands such as 0.19-2.1μm, 2.94μm, and 9-11μm. It can be adapted to various types of lasers including ultraviolet, visible, and infrared, and can handle different scenarios without frequent probe replacement.

At the same time, the series adopts the latest embedded technology to simplify the operation process while improving stability: the display head is equipped with a high-resolution color TFT screen that supports two-level backlight adjustment, ensuring clear reading even in bright workshops or dim laboratories; the built-in suspended self-stabilizing zero circuit eliminates the need for manual zero adjustment, allowing immediate entry into the measurement state after startup; the automatic range switching (AutoScale) function can automatically match the optimal measurement range according to the laser power, avoiding human operation errors; the patented adjustable Ac algorithm and toaster protection design can effectively cope with laser power fluctuations and protect the probe from damage caused by instantaneous high power.

In terms of usage flexibility, the SHY Series offers a combined "probe + display head" mode. Users can select exclusive probes according to the power range and application scenarios. It not only supports handheld mobile measurement but also can be integrated into laser processing equipment through fixed brackets to realize real-time online monitoring of the production process, meeting the dual needs of laboratory research and industrial mass production.

II. Full Coverage of Subdivided Scenarios: Precise Response from Low Power to High Power

Based on the laser power range and application characteristics, the SHY Series is divided into six product categories. Each category is optimized for specific scenarios to ensure that the measurement performance is highly matched with the usage requirements.

(I) Low-Power Laser Power Meters: "Micron-Level Monitors" for Precision Processing

Low-power models (such as SHY-TP2-HP-19 and SHY-TP100-HP-19) cover a power range of 2W-150W, with a minimum measurable power as low as 1mW (SHY-TP2-HP-19) and a power resolution of 1mW. They are particularly suitable for scenarios requiring high power precision such as FPC cutting, fine marking, and microelectronic welding. Taking SHY-TP10-HP-19 as an example, its maximum power density can reach 15kW/cm² @ 10W, which can handle the concentrated energy measurement of small-spot lasers; the 19mm aperture design is suitable for the spot size of most small laser equipment. Combined with an air cooling system, under the lightweight body of 0.2kg (for some models), it can achieve a fast response of 1 second, meeting the needs of frequent mobile testing on-site.

The power calibration uncertainty of this type of product is only ±2% - ±3%, and the linearity is ±1% - ±1.5%. Even in the weak power range of 1mW-2W, it can maintain stable measurement accuracy, providing reliable data support for laboratory research and quality inspection of small laser equipment.

(II) Medium-Power Laser Power Meters: "Stability Guardians" for Industrial Processing

For medium and high-power applications such as laser cutting, drilling, and medium-sized welding, the SHY Series has launched medium-power models (from SHY-TP200-HP-25 to SHY-TP1000-HP-25), with a maximum power range of 200W-1000W, a minimum measurable power of 0.1W-1W, and a power resolution of 0.01W-0.1W. Taking SHY-TP500-HP-25 as an example, it uses a 25mm aperture probe that can receive laser energy with a larger spot, and its maximum power density of 5kW/cm² @ 200W can be adapted to most industrial-grade laser processing equipment; the 5-second response time and air cooling design can not only quickly capture changes in laser power but also control the probe temperature during long-term operation to avoid accuracy impact due to overheating.

This type of product is widely used in scenarios such as laser welding of auto parts and metal plate cutting. By monitoring the laser power in real-time, it can link with the equipment to issue an early warning when the power fluctuates by more than ±3%, avoiding the scrapping of processed parts due to unstable power and improving the production qualification rate.

(III) Kilowatt-Level Water-Cooled Laser Power Meters: "Long-Term Monitors" for High-Power Scenarios

Facing scenarios such as large laser processing centers and high-power laser heat treatment equipment, the kilowatt-level water-cooled models (SHY-W10-HP-25 and SHY-W20-HP-25) of the SHY Series demonstrate strong high-power tolerance. Among them, the SHY-W20-HP-25 has a maximum average power of 2000W, a minimum measurable power of 20W, and a power resolution of 1W, which is particularly suitable for scenarios requiring long-term and high-power stable measurement.

This type of product adopts an efficient water cooling system. When working at full power, the minimum cooling water flow rate needs to be 3L/min, and 6L/min is recommended, which can quickly take away a large amount of heat absorbed by the probe to ensure stable measurement even at 2000W power; the maximum power density of 500W/cm² @ 1000W can cope with the concentrated energy impact of high-power lasers; although the 10-second response time is slightly longer than that of low-power models, it can reduce the interference of instantaneous fluctuations through a smooth filtering algorithm and provide more stable long-term monitoring data, making it a core equipment for online quality control in large laser production lines.

(IV) Serial/USB Laser Power Meters: "Intelligent Connectors" in the Digital Age

To meet the needs of scientific research experiments and automated production for refined data processing, the SHY Series has launched serial/USB interface models (such as SHY-USB-2-HP-19 and SHY-RS232-100-HP-25), which support USB and RS232 dual-interface data transmission and can be directly connected to computers or industrial control systems to realize real-time data upload, storage, and analysis.

Taking SHY-USB-2-HP-19 as an example, it has a maximum average power of 2W, a minimum measurable power of 2mW, a power resolution of 100μW, and a response time of only 0.7 seconds, which can capture subtle changes in laser power; combined with dedicated software, it can generate power waveform diagrams and statistical data reports, and support 10,000-point non-volatile data recording, facilitating researchers to trace the experimental process or production managers to analyze the equipment operation trend. This type of product also has anti-electromagnetic interference capability, and can still maintain stable data transmission in the complex electromagnetic environment of industrial workshops, making it an ideal choice for laser research and development and digital management of automated production lines.

(V) High-Sensitivity Laser Power Meters: "Nanometer-Level Perceptors" for Precision Manufacturing

In scenarios where the power precision requirement reaches the "micron level" such as FPC flexible circuit board cutting, solar cell engraving, and semiconductor chip lithography, the high-sensitivity models (SHY-RS232-12-HS-18 and SHY-USB-12-HS-18) of the SHY Series demonstrate excellent performance. This model has a maximum average power of 12W, a minimum measurable power as low as 1mW, a power resolution of 0.1mW, and a noise-equivalent power (NEP) of only 50μW, which can perceive subtle power changes of weak lasers.

The 18mm aperture design is suitable for the spot size of small precision laser heads, and the maximum power density of 25kW/cm² can cope with precision processing of concentrated energy; the air cooling and 0.2kg lightweight body facilitate integration into small precision equipment for online monitoring, ensuring that the depth and precision of each laser engraving and cutting meet the process requirements, and providing key measurement support for the "high-precision" development of the electronic manufacturing industry.

(VI) Laser Energy Meters: "Energy Quantifiers" for Pulsed Lasers

In addition to power measurement, the SHY Series also includes laser energy meter models (such as SHY-PE10-HP-0.6J and SHY-PE500-HP-25), which are specially designed for the energy measurement needs of pulsed lasers. This type of product has an energy range of 50mJ-300J and an energy resolution of 1mW. It can not only measure the single-pulse energy of pulsed lasers but also calculate the average power, and is suitable for scenarios such as laser marking and pulsed laser welding.

Taking SHY-PE200-HP-25 as an example, it has a maximum average power of 200W, an energy range of 100mJ-300J, and supports multi-energy gear switching of 3J/30J/300J. The optimal measurement gear can be selected according to the energy level of the pulsed laser; the 25mm aperture and air cooling design can be adapted to the output parameters of most pulsed laser equipment, and the power calibration uncertainty is ±3%, ensuring the accuracy of energy measurement and providing a data basis for the optimization of pulsed laser process parameters.

III. Scenario Value of the SHY Series: Full-Link Adaptation from Laboratory to Workshop

With its diverse models and flexible usage methods, the SHY Series demonstrates irreplaceable value in multiple fields:

• Industrial Manufacturing Field: Medium-power and kilowatt-level models can be integrated into laser cutting and welding equipment to monitor power changes in real-time. When the power is abnormal, they can link with the equipment to shut down, avoiding batch processing defects;

• Electronic Processing Field: High-sensitivity models and low-power models are adapted to FPC cutting and solar cell equipment to ensure micron-level processing precision and improve the reliability of electronic components;

• Scientific Research Experiment Field: Serial/USB models support refined data analysis, helping researchers study the relationship between laser power and material reactions and promoting the development of fields such as laser physics and material science;

• On-Site Testing Field: Lightweight handheld models (such as most low-power and high-sensitivity models) weigh only 0.2kg-1.5kg, facilitating inspectors to move between workshops and laboratories and quickly complete equipment calibration and quality sampling inspection.

IV. Conclusion: A Technology-Centric and Demand-Oriented Measurement Solution

Our SHY Series Laser Power/Energy Meters, through subdivided power scenarios, optimized core technologies, and improved usage flexibility, have built a full-dimensional measurement system covering "low power - medium power - high power", "power measurement - energy measurement", and "handheld - online". Whether it is electronic processing pursuing micron-level precision, large industrial production lines requiring long-term stable monitoring, or scientific research experiments focusing on refined data, the SHY Series can provide precise and reliable measurement support, and become a "technology-savvy and demand-aware" precision measurement partner in the field of laser applications. In the future, as laser technology moves towards higher power and more precise applications, the SHY Series is expected to further upgrade core components and software functions, and continue to empower laser applications in various industries.

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