Spark is a cooled Ethernet spectrometer featuring a compact design, configurable spectral range, and excellent stray light suppression performance.
It utilizes RJ45 network transmission with a communication distance of up to approximately 100 meters. The twisted-pair design provides strong resistance to electromagnetic interference, enabling centralized management and remote control of multiple devices through a network switch.
The system is compatible with Windows and Linux operating systems and is suitable for transient spectroscopy measurements, LED and laser testing, color measurement, as well as applications in industrial and laboratory environments with complex electromagnetic conditions.
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Features
- Stray light < 0.1%
- Wavelength thermal drift < 0.1 pixel/℃ (2048 pixels)
- Asynchronous reset trigger delay < 40 ns
- Fiber insertion deviation ≤7%
- 24PIN & Trigger I/O connectors
- RJ45 / RS485 industrial communication
- Extended dynamic range for weak signal detection
- External trigger modes supported
- High UV response
- Built-in 32GB FLASH, expandable via Micro SD
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Specification
| Model | Spark |
| Dynamic range1 | ≥6000:1 |
| Signal-to-noise ratio (SNR)2 | ≥600:1 |
| Pixel count | 2048 pixels |
| Fiber interface | Key-SMA905 |
| Data interface | RJ45 gigabit ethernet |
| Integration time | 65μs–300s |
| Minimum exposure time | ≤1ms |
| Acquisition rate | 500 fps |
| Cooling temperature | ≤5℃ |
| Acquisition modes | Single acquisition, continuous acquisition, software trigger, synchronous external trigger, asynchronous reset external trigger |
| Operating temperature | 10–45℃ |
| Operating humidity | 35–55% RH |
| Storage conditions | Temperature: 10–45℃ Relative humidity: ≤85% RH Atmospheric pressure: 70–105 kPa |
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1.CCD dynamic range: The dynamic range is defined under the minimum integration time condition as (saturation value – dark noise baseline) divided by the standard deviation of the CCD readout noise. The evaluation method follows Oceanhood’s internal standard.
2.The evaluation and calculation of Signal-to-Noise Ratio (SNR) follow Oceanhood’s standard rating methodology. |
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Note: Other specifications can be customized upon request.
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Products
| Model | Spectral Range/nm | Spectral resolution/nm | ||||
| Start | End | 10 µm | 25 µm | 50 µm | 100 µm | |
| Spark-200-340 | 200 | 340 | 0.15 | 0.20 | 0.30 | 0.50 |
| Spark-200-400 | 200 | 400 | 0.20 | 0.25 | 0.35 | 0.60 |
| Spark-200-430 | 200 | 430 | 0.20 | 0.30 | 0.40 | 0.65 |
| Spark-200-520 | 200 | 520 | 0.30 | 0.35 | 0.50 | 0.85 |
| Spark-200-630 | 200 | 630 | 0.40 | 0.55 | 0.80 | 1.20 |
| Spark-200-870 | 200 | 870 | 0.50 | 0.70 | 1.10 | 1.70 |
| Spark-200-1000 | 200 | 1000 | 0.60 | 0.95 | 1.30 | 2.00 |
| Spark-300-430 | 300 | 430 | 0.20 | 0.25 | 0.35 | 0.55 |
| Spark-300-1090 | 300 | 1090 | 0.65 | 1.00 | 1.40 | 2.10 |
| Spark-400-500 | 400 | 500 | 0.25 | 0.30 | 0.40 | 0.55 |
| Spark-400-570 | 400 | 570 | 0.25 | 0.35 | 0.45 | 0.70 |
| Spark-400-600 | 400 | 600 | 0.30 | 0.35 | 0.55 | 0.75 |
| Spark-400-1040 | 400 | 1040 | 0.55 | 0.75 | 1.20 | 1.80 |
| Spark-500-650 | 500 | 650 | 0.30 | 0.40 | 0.50 | 0.70 |
| Spark-500-680 | 500 | 680 | 0.30 | 0.40 | 0.60 | 0.80 |
| Spark-500-770 | 500 | 770 | 0.35 | 0.50 | 0.65 | 1.00 |
| Spark-600-730 | 600 | 730 | 0.35 | 0.40 | 0.50 | 0.75 |
| Spark-600-760 | 600 | 760 | 0.35 | 0.40 | 0.60 | 0.80 |
| Spark-600-850 | 600 | 850 | 0.40 | 0.50 | 0.75 | 1.00 |
| Spark-600-980 | 600 | 980 | 0.50 | 0.65 | 0.90 | 1.30 |
| Spark-700-840 | 700 | 840 | 0.35 | 0.45 | 0.60 | 0.80 |
| Spark-700-940 | 700 | 940 | 0.45 | 0.50 | 0.75 | 1.00 |
| Spark-700-1060 | 700 | 1060 | 0.50 | 0.65 | 1.00 | 1.30 |
| Spark-800-910 | 800 | 910 | 0.40 | 0.50 | 0.60 | 0.80 |
| Spark-800-1010 | 800 | 1010 | 0.50 | 0.55 | 0.80 | 1.10 |
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Dimensional drawing

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Typical spectrums
Dark Noise:Integration time 1ms (dark noise subtracted)

Typical Deuterium-Tungsten Lamp

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Applications
Transient spectroscopy
Through ultra-fast data acquisition, transient emission and absorption spectra during combustion processes can be captured in real time, enabling continuous monitoring of critical parameters such as temperature, species concentration, and combustion rate.
For example, Spark offers strong ultraviolet spectral response, making it suitable for engine temperature measurement. By analyzing spectral variations during combustion, combustion efficiency can be evaluated, allowing optimization measures to be implemented to reduce fuel consumption and lower exhaust emissions.

For example, Spark offers strong ultraviolet spectral response, making it suitable for engine temperature measurement. By analyzing spectral variations during combustion, combustion efficiency can be evaluated, allowing optimization measures to be implemented to reduce fuel consumption and lower exhaust emissions.

Combustion Spectrum
High-end on-site color measurement
By accurately capturing sample reflectance or emission spectra under high-temperature conditions, Spark enables analysis and evaluation of color characteristics based on the spectral distribution of light. It is widely used in the lighting industry, textiles and apparel, cosmetics, food and agriculture, as well as art and cultural heritage conservation. A key advantage of spectrometers in color measurement lies in their high accuracy and excellent repeatability, providing detailed spectral information for precise color analysis.

Photoluminescence (PL) Spectra of Phosphors at High Temperatures
Cavity enhanced absorption spectroscopy (CEAS)
Cavity Enhanced Absorption Spectroscopy (CEAS) utilizes a high-reflectivity optical cavity to allow incident light to undergo multiple reflections, effectively extending the optical path length within the cavity and significantly enhancing weak absorption signals.
By detecting changes in transmitted or reflected light intensity using Spark, sample concentration or related optical parameters can be retrieved. This enables highly sensitive detection of trace substances in applications such as industrial process monitoring and environmental pollutant analysis.
Cavity Enhanced Absorption Spectroscopy (CEAS) utilizes a high-reflectivity optical cavity to allow incident light to undergo multiple reflections, effectively extending the optical path length within the cavity and significantly enhancing weak absorption signals.
By detecting changes in transmitted or reflected light intensity using Spark, sample concentration or related optical parameters can be retrieved. This enables highly sensitive detection of trace substances in applications such as industrial process monitoring and environmental pollutant analysis.

CEAS System Schematic Diagram
Raman spectroscopy
The Spark cooled IoT micro-spectrometer features high spectral resolution, low noise, and excellent stability. When integrated with an appropriate laser source, it can be used to build a cost-effective entry-level Raman spectroscopy system.
Such a system fulfills fundamental Raman analysis requirements and is suitable for teaching demonstrations, routine qualitative material identification, and low-cost research exploration, delivering stable and reliable measurement performance.

The Spark cooled IoT micro-spectrometer features high spectral resolution, low noise, and excellent stability. When integrated with an appropriate laser source, it can be used to build a cost-effective entry-level Raman spectroscopy system.
Such a system fulfills fundamental Raman analysis requirements and is suitable for teaching demonstrations, routine qualitative material identification, and low-cost research exploration, delivering stable and reliable measurement performance.

Raman Spectrum of Alcohol
Fluorescence spectroscopy
The Spark cooled IoT micro-spectrometer provides high ultraviolet response, low noise performance, high spectral resolution, and flexible acquisition modes, making it well suited for fluorescence detection applications.
It is applicable to fluorescence material characterization, environmental pollutant fluorescence detection, and fluorescence labeling analysis of biological samples, supporting both scientific research and industrial testing requirements with stable and high-sensitivity measurement capability.
The Spark cooled IoT micro-spectrometer provides high ultraviolet response, low noise performance, high spectral resolution, and flexible acquisition modes, making it well suited for fluorescence detection applications.
It is applicable to fluorescence material characterization, environmental pollutant fluorescence detection, and fluorescence labeling analysis of biological samples, supporting both scientific research and industrial testing requirements with stable and high-sensitivity measurement capability.

Fluorescence Spectra of Carbon Dots under Different Reaction Conditions
