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常见问题 | 氙气闪光灯
- 如何计算最大光源输入能量（每次闪光）和光源的最大重复频率？
- 以高于定额的主放电电压使用光源会怎么样？
- 如果使用的光源的重复频率超过最大重复频率，会怎么样？
- 特性如何随电弧长度变化？
- 特性如何随主放电电容变化？
- 特性如何随主放电电压变化？
- 为了操作氙气闪光灯模块或氙气闪光灯电源，需要信号源发出哪种触发信号输入？
- 各个波长的寿命特性是否有差异？
- 每种光源输入能量（每次闪光能量）的寿命特性是否有任何差异？
- 为确保光源稳定操作，应采取哪些措施？
- 使用什么设备设置来测量氙气闪光灯的光谱分布、发光脉冲波形和寿命特性？
- 操作光源需要哪些设备？
- 选择光纤的重要因素是什么？
- 氙气闪光灯的安装方向是否有任何限制？
- 在使用存放很久的氙气闪光灯之前，应该检查什么？
- 能否更改触发开关的电缆长度？
如何计算最大光源输入能量（每次闪光）和光源的最大重复频率？
参考以下公式：
例如，当使用推荐的电源 C13316-10（主放电电容：1.0 μF (10-6 F) ）在 1000 V 的主放电电压条件下操作 20 W 氙气闪光灯时，最大光源输入能量（每次闪光）为 0.5 J，计算公式如下：
在上述情况下，20 W 氙气闪光灯的最大重复频率为 40 Hz，计算公式如下：
选择光源时，必须考虑最大光源输入能量和最大重复频率，以使最大平均光源输入（连续）不超过定额。
以高于定额的主放电电压使用光源会怎么样？
电极磨损将会加快，这将缩短氙气闪光灯的使用寿命。
务必在规定定额范围内的操作条件下使用光源。
如果使用的光源的重复频率超过最大重复频率，会怎么样？
光源发出的光达不到所需的光源输入能量。
连续照明也会损坏电极，从而缩短光源的使用寿命。
务必在规定定额范围内的操作条件下使用光源。
特性如何随电弧长度变化？
电弧长度较长的氙气闪光灯提供更高的光输出和更宽的闪光脉波宽度（更长的闪光持续时间），非常适合需要大照射区域大的用途。另一方面，电弧长度较短的氙气闪光灯会发出辉度更高的光，因而可用于需要更高精度的用途。
发光脉冲波形（典型值）
辉度特性（典型值）
特性如何随主放电电容变化？
主放电电容越大，最大光源输入能量就越大。这将产生更高的光输出和更宽的闪光脉波宽度（更长的闪光持续时间）。
发光脉冲波形（典型值）
特性如何随主放电电压变化？
主放电电压越高，最大光源输入能量就越大，可获得的光输出也越高。与主放电电容不同，闪光脉波宽度（闪光持续时间）不会改变。
发光脉冲波形（典型值）
为了操作氙气闪光灯模块或氙气闪光灯电源，需要信号源发出哪种触发信号输入？
输入矩形波信号指的是每个详细参数页面上的重复频率和触发信号。
（建议在 10 Hz 或更高频率条件下操作，以实现高稳定性）
此外，将信号源用于可输出 15 至 30 mA 的触发信号输入。
触发信号波形
触发信号输入部分的内部电路图示例
各个波长的寿命特性是否有差异？
通常，短波长侧的光输出往往会显著减少。
光源寿命是指 190 nm 至 1100 nm 的光输出减少到初始输出水平的 50%，或光输出波动超过规定最大值的时间。
寿命特性（典型值）
示例：2 W 氙气闪光灯模块
每种光源输入能量（每次闪光能量）的寿命特性是否有任何差异？
一般来说，光源输入能量（每次闪光能量）越大，寿命就越短。
寿命特性（典型值）
示例：10 W 氙气闪光灯
为确保光源稳定操作，应采取哪些措施？
建议使用以下解决方案：
① 使用电弧中心的光。
氙气闪光灯的光输出稳定性因电弧放电测量位置而异。光输出越靠近电弧中心，就越稳定。
相对于电弧放电测量位置的光输出稳定性（典型值）
② 切勿在初始照明时使用这种灯。
通过避免初始照明时的预热时间（达到稳定操作所需的时间），可以从氙气闪光灯获得高度稳定的输出光。
相对于操作时间的光输出稳定性（典型值）
初始操作
操作 5 秒后
③ 计算数据的平均值。
通过处理多个获得的数据并计算平均值，提高了光输出稳定性。
数据处理的光输出稳定性（典型值）
无需数据处理
需要数据处理
（为多个获得的数据计算平均值）
使用什么设备设置来测量氙气闪光灯的光谱分布、发光脉冲波形和寿命特性？
典型的测量设备如下：
光谱分布
发光脉冲波形
寿命特性
操作光源需要哪些设备？
准备以下设备：
○ 操作氙气闪光灯模块
必备：
・直流电源（输入电源）
・脉冲信号源，例如脉冲产生器（用于最大重复频率的外部控制）
可选：
・外部控制电源（主放电电压的外部控制）
○ 使用触发开关和专用电源操作氙气闪光灯
必备：
・直流电源（输入电源）
可选：
・脉冲信号源，例如脉冲产生器（用于最大重复频率的外部控制）
・外部控制电源（主放电电压的外部控制）
选择光纤的重要因素是什么？
确保选择抗 UV 的光纤。
氙气闪光灯的安装方向是否有任何限制？
不建议安装光输出窗朝下的光源。
光源内部的碎屑粒子可能会粘附到光输出窗，导致光输出下降。
在使用存放很久的氙气闪光灯之前，应该检查什么？
在检查操作之前，检查导针是否发生任何劣变（如生锈）。
尽管具体取决于光源的存放方式，但基本不会出现问题，除非导针上出现生锈等劣变。
能否更改触发开关的电缆长度？
触发开关的电缆长度影响闪光脉波宽度（闪光持续时间）和光源输入电流。
电缆长度增加，闪光脉波宽度就会变长，光源输入电流趋于降低，可能会导致光源无法点亮。
电缆长度缩短，闪光脉波宽度就会变短，光源输入电流趋于增加，可能会缩短光源的使用寿命。
因此，不建议更改触发开关电缆长度。
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