- 寬帶、平坦的光譜響應(yīng)范圍為 0.19? - 11 ?µm
- 包括 NIST 可追蹤校準
- 對光束位置不敏感
- 是測量高功率激光器或?qū)拵Ч庠吹钠骄β实睦硐脒x擇
| 對比 | 型號 | 探測器類型 | 光譜范圍 | 可測量功率 | 感光尺寸 | 功率密度 |
 | 919P-003-10 | High Sensitivity | 0.19 to 11 µm | 3 W | ?9.5 mm | 1 kW/cm2 |
 | 919P-010-16 | General Purpose | 0.19 to 11 µm | 10 W | ?16 mm | 28 kW/cm2 |
 | 919P-020-12 | General Purpose | 0.19 to 11 µm | 4 W standalone (20 W with a heat sink) | ?12 mm | 23 kW/cm2 |
 | 919P-030-18 | General Purpose | 0.19 to 11 µm | 30 W | ?17.5 mm | 20 kW/cm2 |
 | 919P-040-50 | General Purpose | 0.19 to 11 µm | 35 W | ?50 mm | 12 kW/cm2 |
 | 919P-050-18HP | High Energy Pulse | 0.24 to 2.2 µm | 50 W | ?17.5 mm | 0.5 kW/cm2 |
 | 919P-050-26 | General Purpose | 0.19 to 11 µm | 50 W | ?26 mm | 12 kW/cm2 |
 | 919P-150-26 | Fan Cooled | 0.19 to 11 µm | 150 W | ?26 mm | 12 kW/cm2 |
 | 919P-250-35 | Fan Cooled | 0.19 to 11 µm | 250 W | ?35 mm | 10 kW/cm2 |
 | 919P-5KW-50 | High Power | 0.19 to 11 µm | 5000 W | ?50 mm | 3 kW/cm2 |
 | 919P-600-65 | High Power | 0.19 to 11 µm | 600 W | ?65 mm | 7 kW/cm2 |
產(chǎn)品規(guī)格
| 型號 |  |  |  |  |
| 919P-003-10 | 919P-040-50 | 919P-5KW-50 | 919P-050-18HP | |
| 探測器類型 | High Sensitivity | General Purpose | High Power | High Energy Pulse |
| 光譜范圍 | 0.19 to 11 µm | 0.19 to 11 µm | 0.19 to 11 µm | 0.24 to 2.2 µm |
| 感光尺寸 | ?9.5 mm | ?50 mm | ?50 mm | ?17.5 mm |
| 可測量功率 | 3 W | 35 W | 5000 W | 50 W |
| 能量密度 | <100 ns, 0.3 J/cm2 0.5 ms, 1 J/cm2 2 ms, 2 J/cm2 10 ms, 4 J/cm2 | <100 ns, 0.3 J/cm2 0.5 ms, 5 J/cm2 2 ms, 10 J/cm2 10 ms, 30 J/cm2 | <100 ns, 0.3 J/cm2 0.5 ms, 5 J/cm2 2 ms, 10 J/cm2 10 ms, 30 J/cm2 | <100 ns, 4 J/cm2 0.5 ms, 15 J/cm2 2 ms, 25 J/cm2 10 ms, 50 J/cm2 |
| 功率密度 | 1 kW/cm2 | 12 kW/cm2 | 3 kW/cm2 | 0.5 kW/cm2 |
| 線性度 | ±1.5 % | ±1 % | ±2 % | ±1.5 % |
| 上升時間 | 1.8 s | 2.5 s | 3.0 s | 2 s |
| 校準不確定度 | ±3 % | ±3 % | ±5 % | ±5 % |
| 端口類型 | DB15 | DB15 | DB15 | DB15 |
| 工作溫度范圍 | 15°C to 35°C, <70% RH, non-condensing | 15°C to 35°C, <70% RH, non-condensing | 15°C to 35°C, <70% RH, non-condensing | 15°C to 35°C, <70% RH, non-condensing |
| 功率范圍 | 40 µW - 3 W | 100 mW - 35 W, 150 W for 2 min | 20 W - 5000 W | 140 mW - 50 W |
| 電纜長度 | 1.5 m | 1.5 m | 1.5 m | 1.5 m |
| RoHS | Compliant | Compliant | Compliant | Compliant |
For information on other models, please visit the model's page..
| 特征 | ||
| 在寬波長范圍上的恒定響應(yīng) 熱電堆探頭對入射激光束的響應(yīng)特點由其吸收決定。我們在傳感器中使用了兩種不同類型的涂層。大多數(shù)型號中使用了 BB 型，在整個響應(yīng)波長范圍內(nèi)具有良好的恒定吸收。919P-050-18HP 模式中使用了 PF 型，專為高能量密度脈沖設(shè)計。 |  | |
 | 針對損傷閾值與脈沖寬度進行了廣泛測試 919P 系列熱電堆探頭通過多種激光器對損傷閾值進行了廣泛測試。您可以信任我們的規(guī)格，安心使用。 | |
| Thermopile Sensor Physics | ||
 | ||
| Thermopile optical power sensors are based on thermocouples. A thermocouple consists of two dissimilar metals connected in series. To detect radiation, one metal junction is typically blackened to absorb the radiation. The temperature rise of this junction with respect to another non-irradiated junction generates a voltage. This effect is the basis of all thermocouple temperature sensors. The thermocouple materials used in thermopiles are usually bismuth and antimony, which have a relatively high thermoelectric coefficient. An individual thermocouple typically produces a low output voltage, which results in a low detectivity and limits its use as a sensing device. So, one way to increase the output voltage is to connect many thermocouple junctions in series. All the “hot” junctions are placed close together to collect the radiation. The typical operation of a thermopile is shown above. The thermopile disc consists of a circular array of thermocouples. The optical radiation is absorbed by the disc generating the output voltage. The heat on the disc spreads radially across the thermopile on the reverse side of the disc where it is transferred to a heat sink. These devices are quite sensitive in the IR due to their broadbａnd absorption. Due to the heating and cooling processes, the response time of a thermopile is quite slow, typically on the order of seconds. Due to this time constraint, thermopiles are used exclusively for measuring the power of CW or quasi-CW radiation sources. Please see our Thermopile Sensor Physics technical note for additional information. | ||
| 大功率測量的理想選擇 | NIST 可追溯性 | |
| Newport 新型的 919P 熱電堆探頭系列提供了一系列探測器，以滿足連續(xù)或脈沖激光器的功率測量需求。他們提供了寬帶、頻域平直的響應(yīng)，測量功率范圍高達 5000 W。 | 每個 919P 熱電堆探頭包括一個 DB15 連接器和內(nèi)部 EEPROM，用于存儲工廠校準數(shù)據(jù)。大多數(shù)探頭都在 532 nm、1.064 µm 和 10.64 µm 這三種不同波長下校準。建議每年都對熱電堆探頭進行校準，以確保 NIST 的可追溯性。 | |
Cross Reference Chart for Legacy 818P Series Thermopile Sensors
Please note that the 919P Series Thermopile Sensors are intended to replace the 818P Series Sensor. Also note that both the series are incompatible with certain optical power meter models. The following table provides the recommended replacement 919P models for each 818P series model. Even though the recommended models have the closest specifications as the obsoleting ones, however, not identical. The user must carefully compare each specification. Legacy 818P Model Replacement 919P Model 818P-001-12, 818P-001-12NIR 919P-003-10 818P-015-19 919P-010-16 818P-010-12, 818P-020-12 919P-020-12 818P-030-19, 818P-015-17W, 818P-030-17W 919P-030-18 818P-040-55, 818P-040-50W, 818P-050-50W 919P-040-50 818P-015-18HP, 818P-030-18HP 919P-050-18HP 818P-040-25, 818P-050-17W 919P-050-26 818P-100-25, 818P-110-19, 818P-150-19 919P-150-26 818P-100-55, 818P-250-25, 818P-300-25 919P-250-35 818P-300-55, 818P-400-55, 818P-500-55 919P-600-65 818P-3KW-65, 818P-3KW-100 919P-5KW-50
Flexible Fiber Adapters
The 919P-SMA and 919P-FC fiber adapter can be used with most of the detector models. Remove the snout for Models 919P-003-10 and 919P-010-16 and directly mount the fiber adapters on the thread. In order to accommodate various aperture sizes, we provide adapter rings as well as the fiber adapters. Refer to the table for the corresponding adapter ring for each detector model. Note that certain models do not accept a fiber adapter. Detector Model Required Mounting Ring 919P-030-18 919P-18FA 919P-040-50 919P-50FA 919P-050-26, 919P-150-26 919P-26FA 919P-250-35 919P-35FA 919P-020-12, 919P-050-18H Fiber adapters not mountable
激光的探測器選擇
如果您已擁有 Newport 和 Spectra Physics 激光器，請參閱我們的光學探測器選型指南，來查看每個激光器的推薦探測器型號。
