PD300-CIE | Laser Photodiode Sensors | Power Sensors - Ophir

PD300-CIE

7Z02406
描述: 

PD300-CIE是一款配备旋转座的光度传感器。具有一个眼响应曲线传感器,以勒克斯(Lux)为单位进行测量。其测量范围为20mLux - 200kLux。该传感器配备一根1.5米电缆,用于连接至一个仪表或PC接口。

Specification

  • 2.4x2.8mm
  • 400-700nm
  • 20mLux-200KLux
  • 118 L x 10 W x 18 D (mm)
  • 1μJ
  • 10W/cm²
  • 0.2 s
  • 200kLux
  • CE, China RoHS
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FAQ

Can I use a sensor from the PD300 family to measure average power of pulsed lasers?

In general yes, but several technical issues need to be kept in mind (most of which are results of the fast physical response time of these sensors):

  • The pulse rate should be more than about 30Hz, otherwise the reading is unstable. At higher pulse frequencies, the sensor will respond as if the beam were CW. 
  • It is possible for a pulsed beam to have average power within the sensor spec and yet have the energy of the pulses themselves be high enough to cause a momentary saturation of the sensor. It is important to be sure that pulse energy is also within sensor spec (the parameter "Max pulse energy" is included in all specs for the PD300 family, for just this reason).
  • The beam diameter should be no less than about 1mm .
  • The average power and power density restriction in the spec should not be exceeded

 

Note: At the maximum pulse energy limit given in the spec, the reading will be saturated by about 5%, i.e. the reading will be about 5% lower than it should be. At 1/3 the maximum, the saturation will be about 1%.

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Do I need to recalibrate my instrument? How often must it be recalibrated?

Unless otherwise indicated, Ophir sensors and meters should be recalibrated within 18 months after initial purchase, and then once a year after that.

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Calibration

 

Videos

Photometric Measurements: Measuring Illuminance with the PD300-CIE Photometric Measurements: Measuring Illuminance with the PD300-CIE
FAQ: Photodiode Sensors for measuring very low laser powers FAQ: Photodiode Sensors for measuring very low laser powers FAQ: Photodiode Sensors for measuring very low laser powers

In this short “Basics” video, we review in general the use of photodiode sensors for measuring very low laser powers.

How to measure power of very low power pulsed laser beams How to measure power of very low power pulsed laser beams How to measure power of very low power pulsed laser beams

When using a photodiode laser power sensor to measure very low power pulsed beams (nW to mW), there are some issues you need to be aware of. This video shows you how to avoid some common problems and ensure maximum accuracy.

Photodiode Sensors for Measuring Very Low Powers Photodiode Sensors for Measuring Very Low Powers Photodiode Sensors for Measuring Very Low Powers

In this short "Basics" video, we review in general the use of photodiode sensors for measuring very low laser powers.

In applications where a human observer is involved (for example illumination applications), it is often important to measure using the eye-response-matched Photometric system of units.
Ophir’s PD300-CIE is a photometric sensor, and is designed to measure illuminance (in units of Lux or Foot-Candles).

Tutorials

Tutorials and Articles

Laser Power Sensors introduction

As described in the general introduction, the thermopile sensor has a series of bimetallic junctions. A temperature difference between any two junctions causes a voltage to be formed between the two junctions. Since the junctions are in series and the «hot» junctions are always on the inner, hotter side, and the «cold» junctions are on the outer, cooler side, radial heat flow on the disc causes a voltage proportional to the power input. Laser power impinges on the center of the thermopile sensor disk (on the reverse side of the thermopile), flows radially and is cooled on the periphery. The array of thermocouples measures the temperature gradient, which is proportional to the incident or absorbed power. In principle, the reading is not dependent on the ambient temperature since only the temperature difference affects the voltage generated and the voltage difference depends only on the heat flow, not on the ambient temperature.

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Common Reasons for Photodiode Sensor Damage or Out of Tolerance Conditions

We have included this document with your recent calibration order because we have noticed an out of tolerance condition obtained from your equipment when returned for calibration. This document was created to assist our valued customers in the proper care and maintenance of Ophir photodiode sensors. The following information is for reference only. If you have any reason to believe that the sensor is no longer performing within the original specifications, we always recommend that you send it in for repair and/or recalibration by our trained technicians to bring the unit back to the proper NIST traceable standards.

Ophir photodiode sensors can be used for many years without any repairs when used with the proper laser optical setup. Many of our customers have sensors that are using their original absorber that are over ten years of age. We hope that this document will enable you to also enjoy the long life and reliable results that Ophir- Spiricon is known for.

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How to Properly Select a Laser Power or Energy Sensor

The selection of a sensor to accurately measure the power of a laser or energy of a pulsed laser can seem like a simple and easy procedure. However, many times the selection process is limited to choosing a sensor that only meets the range of power or energy to be measured, leaving out several other essential criteria of the laser specifications; that without their consideration, can allow the wrong sensor to be selected, the laser to be measured inaccurately and likely to cause the sensor to fail prematurely.

Watch Our Laser Measurement Video

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Effect of Ambient Conditions on Laser Measurements

We are often asked about the specified ranges of various ambient conditions (temperature, humidity, etc.) for Ophir instruments. In this article we will clarify the effects of these conditions on laser measurements, so you’ll be able to use your Ophir laser measurement instrument effectively.

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Online Sensor Finder

The online sensor finder now gives comments to help the user find a solution in case he does not succeed in doing so. Examples below: 阅读更多...

A Quick Guide to Optical Measurement Devices

All I know is I want to measure light. Should I use a light meter, lux meter, laser power meter, optical power meter, radiometer, photometer, spectrometer, or something else I have yet to hear of?  阅读更多...