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LaserPower Meter Thorlabs

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Model 919E-20U-10-20K is a photodiode energy detector for low energies with a 10mm aperture. This model is one of the most sensitive calibrated energy detector available in market. It can measure energies from 1nJ up to 15µJ. It's noise floor is approximately 50 pJ. It can operate at repetition rates up to 20 kHz and covers the spectral range from 0.19 - 1.1µm.

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919E Series pyroelectric pulse energy detectors use innovative, patented technology which facilitates accurate and repeatable laser measurements of pulses over an extensive range of laser pulse energies.

We also offer five models that can handle high pulse energy. Model 919E-30-46-10K, especially, can handle up to 30 Joules by utilizing a calibrated diffuser with a high damage threshold.

Free online tool that rotates images. Just drag and drop your image here and it will be automatically rotated. In the options, you can set the rotation angle in degrees or radians and rotate the image clockwise or counterclockwise. Created by engineers from team Browserling.

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In addition to Model 919E-20U-10-20K, three additional models are introduced for low pulse measurements up to 10 mJ pulses. Model 919E-200U-8-25K is the most sensitive pyroelectric sensor, capable of measuring as low as 1 uJ via a broad spectral range of 0.15 to 12 µm. Choose between 919E-0.1-12-25 and 919E-0.1-12-250, depending on the pulse rep rate of the laser source.

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This tool rotates images by an arbitrary angle. You can rotate an image by specifying degrees or radians. Just to remind you, 360 degrees is equal to one full rotation around a circle, and 3.14 radians (π radians) correspond to 180 degrees. By default, the rotation is performed in the counterclockwise direction. For example, a 90-degree rotation will flip an image on its left side. To rotate an image clockwise, use negative angles such as -60, -90, or -120 degrees. You can also use your mouse to rotate an image in the preview area interactively by clicking it and then dragging the mouse to the left or right side. Once you're done, the rotated image can be downloaded in PNG, JPEG, and WebP formats. Image-abulous!

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Newport offers a comprehensive range of optical power meters from low cost, hand-held meters to the most advanced dual-channel benchtop meter available in the market. Presented here is a list of meters compatible with the 919E Series sensors. For more detailed information about our power meters, please see our Optical Power Meter Guide. 1938-R/2938-R  1919-R  843-R 844-PE-USB Pyroelectric Measurement Pulse energy Average power Exposure Pulse energy Average power Exposure Pulse energy Average power Pulse energy Average power Exposure Sampling Rate (Pyroelectric) 25 kHz 5 kHz 500 Hz 10 kHz Trigger In/Out ✔ No No No Data Storage 2 GB internal, External USB memory size, Via PMManager Limited by USB memory size, Via PMManager 843-R-USB: Via PMManager 843-R: None Via PMManager Computer Interface USB RS-232 USB RS-232 843-R-USB: USB 843-R: None USB Additionally, please refer to Newport Power Meter and Detector Legacy and Compatibility for a complete list of meters that are compatible with this model.

All the detectors come with a DB15 connector and internal EEPROM for storing factory calibration data, making them directly compatible with Newport's 843-R, 843-R-USB, and the all new 1919-R Optical Power and Energy Meters.

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The 919E series sensors can reliably measure energy pulses up to 25 kHz laser repetition rate. Select high pulse energy detectors can measure up to 10 kHz rep rate. When connected to our brand new 1919-R Handheld Power & Energy Meter, pulse energy of every pulse up to 6 kHz can be logged.

Newport offers a comprehensive range of optical power meters from low cost, hand-held meters to the most advanced dual-channel benchtop meter available in the market. Presented here is a list of meters compatible with the 919E Series sensors. For more detailed information about our power meters, please see our Optical Power Meter Guide.

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The configuration of a typical pyroelectric sensor and its operational output can be seen in the above Figure. A pyroelectric material, which is usually crystalline, possesses an electric polarization, even in the absence of an applied voltage. An incident laser pulse heats the crystal, which causes the material to expand and produce a change in the polarization. Charge builds up on opposite surfaces of the crystal which generates a current flow that charges a capacitor. This charged capacitor induces a voltage whose amplitude change is proportional to the original laser pulse energy. Since it is the change in temperature that produces the current, pyroelectric detectors respond only to pulsed or modulated radiation. They respond much more rapidly to variations in radiation than thermopiles and are unaffected by steady background radiation. Please see our Pyroelectric Sensor Physics technical note for additional information.

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In addition to Model 919E-20U-10-20K, three additional models are introduced for low pulse measurements up to 10 mJ pulses. Model 919E-200U-8-25K is the most sensitive pyroelectric sensor, capable of measuring as low as 1 uJ via a broad spectral range of 0.15 to 12 µm. Choose between 919E-0.1-12-25 and 919E-0.1-12-250, depending on the pulse rep rate of the laser source.

Additionally, please refer to Newport Power Meter and Detector Legacy and Compatibility for a complete list of meters that are compatible with this model.

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This example rotates an image by -0.79 radians. In other words, the image gets rotated by -45 degrees. The formula for converting radians to degrees is the following: -45 deg = -0.79 rad x 180° / π. The minus sign makes it rotate in the clockwise direction. (Source: Pexels.)

This tool rotates images by an arbitrary angle. You can rotate an image by specifying degrees or radians. Just to remind you, 360 degrees is equal to one full rotation around a circle, and 3.14 radians (π radians) correspond to 180 degrees. By default, the rotation is performed in the counterclockwise direction. For example, a 90-degree rotation will flip an image on its left side. To rotate an image clockwise, use negative angles such as -60, -90, or -120 degrees. You can also use your mouse to rotate an image in the preview area interactively by clicking it and then dragging the mouse to the left or right side. Once you're done, the rotated image can be downloaded in PNG, JPEG, and WebP formats. Image-abulous!

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When the diffuser is not in use, the active diameter of Model 919E-30-46-10K is as large as 46 mm. The active diameter is 33 mm even when the diffuser is mounted. In addition, two additional models feature 35 mm diameter.

The 919E Series Pulse Energy Detectors replace the obsolete 818E Series detectors.  However, due to the technological differences between the two families, we do not offer a direct replacement cross reference chart.  Contact Newport with the specifications of your light source so that we can recommend you the right 919E series detector.

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The configuration of a typical pyroelectric sensor and its operational output can be seen in the above Figure. A pyroelectric material, which is usually crystalline, possesses an electric polarization, even in the absence of an applied voltage. An incident laser pulse heats the crystal, which causes the material to expand and produce a change in the polarization. Charge builds up on opposite surfaces of the crystal which generates a current flow that charges a capacitor. This charged capacitor induces a voltage whose amplitude change is proportional to the original laser pulse energy. Since it is the change in temperature that produces the current, pyroelectric detectors respond only to pulsed or modulated radiation. They respond much more rapidly to variations in radiation than thermopiles and are unaffected by steady background radiation. Please see our Pyroelectric Sensor Physics technical note for additional information.

In this example, an image of a windmill gets rotated counterclockwise by 90 degrees. It gets flipped on its left side and it now has a horizontal orientation. Pro tip: to flip an image on its right side, simply add a minus "-" sign before the angle. The minus sign changes the rotation direction from counterclockwise to clockwise. (Source: Pexels.)

Free online tool that rotates images. Just drag and drop your image here and it will be automatically rotated. In the options, you can set the rotation angle in degrees or radians and rotate the image clockwise or counterclockwise. Created by engineers from team Browserling.

Laserpower Meter Ophir

In stock (8 units), ready to be shipped. Add to cart. Payment & Security. Your payment information is processed securely. We do not store credit card ...

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You've reached the daily free plan limit. The free plan lets you try our service a couple of times a day. Upgrade to the premium plan to remove all limits and unlock these additional features:

The 919E Series Pulse Energy Detectors replace the obsolete 818E Series detectors.  However, due to the technological differences between the two families, we do not offer a direct replacement cross reference chart.  Contact Newport with the specifications of your light source so that we can recommend you the right 919E series detector.

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Calculate a laser beam transmission through an aperture with this free online calculator.

919E Series pyroelectric pulse energy detectors use innovative, patented technology which facilitates accurate and repeatable laser measurements of pulses over an extensive range of laser pulse energies.

The free plan lets you use image tools for personal use only. Upgrade to the premium plan to use image tools for commercial purposes. Additionally, these features will be unlocked when you upgrade:

In this example, we perform a 180-degree rotation of an image of a bicycle in a lavender field. As a result of this rotation, the image is turned upside down, creating a world that's flipped on its head. (Source: Pexels.)