- 孔径为 46 mm
- 脉冲能量测量高达 30 J
- 光电二极管能量探测器,用于低至 1 nJ 的测量
- 金属涂层热电探测器,可用于高重复频率
- BF 涂层热电探测器,可用于的损伤阈值
- 测量脉冲宽度高达 20 ms 的激光
对比 | 型号 | 探测器类型 | 光谱范围 | 感光尺寸 | 重复频率 | 有衰减器时的脉冲能量 |
919E-0.1-12-250 | Pyroelectric | 0.15 to 3 and 10.6 µm | Ø12 mm | 250 Hz | 10 mJ | |
919E-0.1-12-25K | Pyroelectric | 0.15 to 12 µm | Ø12 mm | 25 kHz | 10 mJ | |
919E-10-20-250 | Pyroelectric | 0.24 to 2.2 µm | Ø20 mm | 250 Hz | 10 J | |
919E-10-24-10K | Pyroelectric | 0.15 to 3 µm | Ø24 mm | 10 kHz | 10 J | |
919E-10-35-10K | Pyroelectric | 0.19 to 2.2, and 2.94 µm | Ø35 mm | 10 kHz | 10 J | |
919E-10-35-250 | Pyroelectric | 0.24 to 2.2 µm | Ø35 mm | 250 Hz | 10 J | |
919E-200U-8-25K | Pyroelectric | 0.15 to 12 µm | Ø8 mm | 25 kHz | 200 uJ | |
919E-20U-10-20K | Silicon Photodiode | 0.19 to 1.1 µm | Ø10 mm | 20 kHz | 15 µJ @ <300 nm, 8 µJ @ 350-550 nm, 5 µJ @ >800 nm | |
919E-30-46-10K | Pyroelectric | 0.532, 1.064, 2.10, 2.94 µm | Ø46 mm | 10 kHz | 30 J |
产品规格
型号 | ||||
919E-0.1-12-250 | 919E-10-35-10K | 919E-30-46-10K | 919E-10-20-250 | |
探测器类型 | Pyroelectric | Pyroelectric | Pyroelectric | Pyroelectric |
探测器材料 | BF coating | Metallic with removable diffuser | BF with diffuser | |
光谱范围 | 0.15 to 3 and 10.6 µm | 0.19 to 2.2, and 2.94 µm | 0.532, 1.064, 2.10, 2.94 µm | 0.24 to 2.2 µm |
感光尺寸 | Ø12 mm | Ø35 mm | Ø46 mm | Ø20 mm |
平均功率 | 3 W | 25 W | 40 W w/ diffuser, 15 W w/o diffuser | 20 W |
有衰减器时的脉冲能量 | 10 mJ | 10 J | 30 J | 10 J |
脉冲宽度 | 5 ms | 20 ms | 5 ms | 20 ms |
重复频率 | 250 Hz | 10 kHz | 10 kHz | 250 Hz |
噪声等效能量 | 1 µJ in 1 ms, 5 µJ in 5 ms setting | 1 µJ in 2 µs, 40 µJ in 5 ms setting | 1 µJ in 2 µs, 20 µJ in 5 ms setting (w/o diffuser) | 15 µJ in 1 ms, 60 µJ in 20 ms setting |
线性度 | ±2% | ±2% with energy for >7% of full scale | ±2% with energy for >10% of full scale | ±2% with energy > 7% of full scale |
校准不确定度 | ±3% basic, add ±2% @ 0.2-3 µm, ±5% @ 10.6 µm | ±4% basic, add ±2% @ 0.2-3 µm, ±5% @ 10.6 µm | ±4% basic, add ±2% @ 0.2-3 µm, ±5% @ 10.6 µm | ±4% basic, add ±2% @ 0.2-3 µm, ±5% @ 10.6 µm |
损伤阈值 | 0.8 J/cm2 (<100 ns pulse), 1 J/cm2 (1 µs), 2 J/cm2 (300 µs) | 1 J/cm2 (<100 ns pulse), 2 J/cm2 (1 µs), 20 J/cm2 (300 µs), 40 J/cm2 (2 ms) | 1.5 J/cm2 (<100 ns pulse), 3 J/cm2 (1 µs), 20 J/cm2 (300 µs), 60 J/cm2 (2 ms) | 3 J/cm2 (<100 ns pulse), 5 J/cm2 (1 µs), 25 J/cm2 (300 µs), 50 J/cm2 (2 ms) |
端口类型 | DB15 | DB15 | DB15 | DB15 |
工作温度 | 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 |
反射率 | 20% approx. | 25% approx. | 50% approx. w/o diffuser, 25% approx. w/ diffuser | |
尺寸 | Ø62 x 21 mm | Ø62 x 35 mm | Ø62 x 28.5 mm | Ø62 x 28.5 mm |
电缆长度 | 1.5 m | 1.5 m | 1.5 m | 1.5 m |
RoHS | Compliant | Compliant | Compliant | Compliant |
特征 | |||
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. | |||
光电二极管脉冲能量探头 919E-20U-10-20K 型号是一款用于低能量测量的光电二极管能量探头,其孔径为 10mm。该型号是市场上的校准能量探头之一。它可以测量从 1nJ 到 15µ | |||
测量可达 25 kHz 的激光重复频率 919E 系列探头能够可靠测量高达 25 kHz 激光重复频率的能量脉冲。选择高脉冲能量探头可以测量 10 kHz 的重复频率。连接全新的 1919-R 手持式功率和能量计时,可记录的每个脉冲的脉冲能量可达 6 kHz。 | |||
传感器尺寸可高达 46 mm 不使用散射片时,919E-30-46-10K 的有效直径可至 46 mm。即使安装了散射片,有效直径也能达到 33 mm。此外,另外两个型号的直径为 35 mm。 | |||
NIST 可追踪校准
所有的探头都配备一个 DB15 连接器和内部 EEPROM,用于存储工厂校准数据,使其 直接兼容 Newport 的 843-R、843-R-USB 和全新的 1919-R 光功率和能量计。 |
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高能级可达 30 J
我们还提供了五种可以处理高脉冲能量的型号。尤其是 919E-30-46-10K,通过使用具 有高损伤阈值的经过校准的散射片,可测量高达 30 J 的能量。 |
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