通过光电转换装置将光谱仪转化为光电流。所以所谓的光谱强度，使这种电流直
接测量称为直接法，行业中领先的光谱仪可以测量瞬时值，如果我们充电这个电流到电容器装置，经过一段时间后，测量电容器件的电压大小是所谓积分法而得到的信号是平均充电时间。下面分享使用制冷型光纤光谱仪要注意的事情有哪些？
The spectrometer is converted into photocurrent by a photoelectric conversion device. So the so-called spectral intensity makes the direct measurement of this current called direct method. The leading spectrograph in the industry can measure the instantaneous value. If we charge this current to the capacitor device, after a period of time, measuring the voltage of the capacitor device is the so-called integral method and the signal obtained is the average charging time. What should we pay attention to when using refrigerated optical fiber spectrometer?
1、注意光电倍增管产生的信号需要放大
1. Attention should be paid to the amplification of the signal generated by the photomultiplier tube.
因此，重要的需要注意的是，光电转换装置产生的光电流与光的强度线性相关(光电流与光电倍增管产生的光强度的关系在光作用下可能不是线性的)，并且光电流和电容的电压之间的关系是已知的。直接读数光谱仪的光电倍增管产生的信号非常微弱，因此必须放大，使用直接读数光谱仪测量放大信号，但无论如何，每个放大器都是由改变所获得的小信号来控制大信号的变化，定量很可能推动测量仪器设备的工作。在制冷型光纤光谱仪设备中，我们主要使用设备室低频弱功率放大设备，为什么叫低频？其实所称的低频是指在音频范围内的操作频率。
Therefore, it is important to note that the photocurrent generated by the photoelectric conversion device is linearly related to the intensity of light (the relationship between photocurrent and the intensity of light produced by the photomultiplier tube may not be linear under the action of light), and the relationship between photocurrent and the voltage of the capacitor is known. The signal produced by the photomultiplier tube of the direct reading spectrometer is very weak, so it must be amplified. The amplified signal must be measured by the direct reading spectrometer. However, each amplifier controls the change of the large signal by changing the small signal obtained. Quantitative analysis is likely to promote the work of the measuring instrument and equipment. In the refrigerated optical fiber spectrometer equipment, we mainly use the equipment room low frequency weak power amplifier equipment, why is it called low frequency? In fact, the so-called low frequency refers to the operating frequency in the audio range.
2、注意其分析方法要基于光谱法的原理
2. Note that the analysis method should be based on the principle of spectral method.
光电直读光谱学的基本原理及其建立的分析方法是基于光谱法的基本原理及其实验技术，只有测量参数和数据处理方法是不同。激发光源等离子体中的原子浓度决定了直读光谱仪发射光谱的谱线强度。制冷型光纤光谱仪分析方法依赖于光电倍增器将光信号的强度转换为电信号。有更多的仪器设备使用光电倍增器输出光流到积分电容器装置充电，测量制冷型光纤光谱仪集成电容器装置电压表示线法强度。
The basic principle of photoelectric direct reading spectroscopy and its analysis method are based on the basic principle of spectroscopy and its experimental technology. Only the measurement parameters and data processing methods are different. The atomic concentration in the plasma of the excitation source determines the spectral intensity of the emission spectrum of the direct reading spectrometer. The analysis method of refrigerated optical fiber spectrometer depends on the photomultiplier to convert the intensity of optical signal into electrical signal. More instruments and equipment use photomultiplier to output light flow to integral capacitor device to charge, and measure the voltage of refrigeration type optical fiber spectrometer integrated capacitor device to indicate the line strength.
供应质量好的光谱仪还有高灵敏度的超高能空心阴极灯和多元件灯，空心阴极灯本身也是一定的使用寿命。石墨管是石墨炉原子吸收分析中最重要的消耗材料。其它如火焰系统雾化器、毛细管注射管也是火焰原子吸收分析的主要耗材。因此，制冷型光纤光谱仪的基本要求是，积分电容器装置上的电压与光信号的强度呈线性关系。
The spectrograph with good quality is also provided with ultra-high energy hollow cathode lamp and multi-component lamp with high sensitivity, and hollow cathode lamp itself has a certain service life. Graphite tube is the most important consumable material in graphite furnace atomic absorption analysis. Other consumables such as flame atomizer and capillary injection tube are also the main consumables for flame atomic absorption analysis. Therefore, the basic requirement of the refrigerated optical fiber spectrometer is that the voltage on the integrated capacitor device is linearly related to the intensity of the optical signal.