Hello Engineers,
I purchased your company's DLPNIRSCANEVM instrument, I encountered such a problem in practical application: for the same input light, the external conditions have not changed, only the coding method has been changed, the first time encoding, the entire DMD is divided into N small regions, and the micromirror of each small area is encoded in turn to make it set to on, and the state of the micromirror in other regions is set to off, and the intensity of the reflected light intensity in a single region is recorded separately, and N intensity data are measured N times; On the second coding, all micromirror states of the DMD are set to on, and only one data is measured. I conducted many experiments last time, and theoretically the sum of the N data measured for the first time should be equal to the intensity of the data measured for the second time, but when I actually measured it, I found that the two data were not equal, and the sum of the intensities of each region was different from the intensities of all regions, and they had a certain deviation, about 3%. Is this reasonable? Is this instrument malfunctioning?