In order to overcome or reduce the misjudgment caused by stability, reduce the economic loss of users, and improve the use efficiency of the colorimeter, it is necessary to analyze the main factors of the lack of stability of the instrument detected by the sample. The internal factors (factory design and processing) In order to …
What are the Factors Influencing the Signal Stability of Colorimeter? Read More »
When a colorimeter is used to measure the measured object, the direct result obtained by the instrument is the refraction ratio of the measured material to the incident light of the selected wavelength. The transmittance is determined by the spectral properties of each measured substance. Therefore, it is directly related to the selection of the …
What are the Reasons for the Poor Measurement Accuracy of Colorimeter? Read More »
Among the common analytical instruments in the analysis and testing laboratory, there is one instrument that we have mentioned, that is, the pocket colorimeter and the most common colorimeter is mainly the ultraviolet colorimeter, which is mainly used to measure the measured absorbance of a substance under irradiation of a certain wavelength. This kind of …
What are the Problems with the Use of Colorimeters? Read More »
With the development of science and technology, there are more and more types of colorimeter instruments, and the measurement performance of different colorimeters has significant differences. No matter which type of colorimeter is used, the accuracy of the measurement results is crucial. Important, so as not to affect the accuracy of the test data. During the …
With the development of science and technology and the progress of precision instrument manufacturing, the performance of colorimeter is also constantly optimized and improved. A caliber 4mm pocket colorimeter is an instrument that decomposes light with complex components into spectral lines. Its measurement range includes the ultraviolet light region with a wavelength of 200-380 nm …
In JJG 178-2007 the colorimeter is divided into four grades of I, II, III, and IV according to the level of measurement performance. However, in the daily verification process, it is found that a large number of instruments have incomplete grade marks on the nameplates, which makes it difficult to judge the grade before the …
How to Judge and Divide the Level of the Colorimeter? Read More »
For a long time, agricultural soil testing and fertilization have relied on conventional photoelectric colorimeters, which require soil samples to be retrieved from the field, dried, and then sent to the laboratory for measurement. There are many shortcomings in this method, such as large investment in instruments, inability to be portable, many auxiliary pieces of …
A Small, Lightweight and Easy-to-Operate Colorimeter Read More »
Now, the market has higher and higher requirements for product quality. It no longer only meets the internal quality of diammonium phosphate but also has higher requirements for external quality (particle size, color, etc.). At present, the diammonium phosphate sold on the market has various colors such as green, yellow, brown, black, natural color, etc. …
How to Use a Colorimeter to Measure the Chromaticity of Diammonium Phosphate? Read More »
At present, high-power white LEDs are generally used in LED lighting products, which mainly use blue LED chips and yellow phosphors for light conversion, that is, directly coat the surface of the chip with a mixture of phosphors and silica gel. The layer thickness is difficult to control, so the spatial color distribution of the …
What are the Advantages of Pocket Colorimeters Compared to General Colorimeters? Read More »
Remote sensing techniques are used on asphalt pavements to study their physical and chemical characteristics, and also to evaluate the condition of pavements such as aging and material composition. There are various techniques in remote sensing that can be used for the study of asphalt concrete’s behavior, including spectral libraries, Unmanned Aerial Vehicles (UAVs), digital …
The Use of Colorimeters to Support Remote Sensing Techniques on Asphalt Pavements Read More »
