What is the basis for building an analytical instrument?
There are different effects in different parts, and then the signal conversion system, the atomic absorption of light, we detect the intensity of light is not absorbed, the detector for photomultiplier tube, through signal amplification, digital analog conversion to obtain the transmittance or absorbance, directly on the instrument display can be read. In fact, this part contains the amplified recording and readout device. Different instruments are similar. A well please correct me.
Any kind of analysis instruments can be regarded as four parts. The signal generator, signal converter, reading device, and recording system. We can amplify by atomic absorption spectrometer as an example! The signal generator is a sharp line source, have characteristic absorption atomic absorption line hollow cathode lamp. The instrument also added other accessories. Such as atomic system, monochromator
