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Energy Sensors
Frequently Asked Questions
Energy sensors are high accuracy devices designed to measure different levels of laser energy.
There are two main types of energy sensors: Pyroelectric and Photodiode. Pyroelectric sensors operate by measuring repetitive pulse energies and average power, while photodiode sensors measure very low energy pulse lasers. Most energy sensors connect to a compatible computer or tablet PC using designated software.
Energy sensor devices can measure as little as very few nanojoules to numerous joules per pulse. Different units are able to measure different maximum/minimum levels of energy.
Common applications for energy sensors include laser energy measurements in any spectral range, laser optics, spectroscopy (measuring and interpreting the electromagnetic spectrum), and basic metrology (scientific study of measurement).
Important features to consider when selecting an Energy Sensor are aperture, noise level, power capability/average power, max repetition rate, max measurable energy, absorber type, and spectral range.
Energy sensor units are built for easy operation, compactness, and durability. They operate at extremely high repetition rates and exhibit high damage thresholds (limit to which an optic is damaged by a laser). Energy sensors also have high insensitivity to electromagnetic interference, an important element when operating in lab environments. Most devices are programmed with calibration sensitivity and spectral correction factors for varying wavelengths.
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