EN
RayClouds Photoelectric Technology Co.,Ltd.
RayClouds Photoelectric Technology Co.,Ltd.

Environmental Impact is Also Very Important for Optical Spectrometer

If any precision instrument wants to get accurate data, it must operate under certain working conditions. The environment has a great impact on the performance, reliability, measurement results and service life of the analytical instrument. However, ignoring its working environment will likely lead to instrument failure. Because small changes in the external environment will bring changes to the stability of data measured; serious changes in the external environment could damage the instrument and shorten the service life of the instrument.


1. Precautions for optical spectrometer


In general, the more precise the instrument is, the higher the requirements for external working conditions are. As one of high-end optical measuring devices, the optical spectrometer is no exception. It should be kept in a dry, ventilated, vibration free and acid-base gas free room. At the same time, the room should be equipped with double curtains to avoid direct exposure to strong light. Before installing the instrument, you must carefully read the installation and operation manual provided by spectrometer suppliers. The installation and operation manual is a collection of knowledge about correct installation, effective operation, maintenance and common fault diagnosis and troubleshooting of the instrument, which is a guide for the operator before practice.


2. The effect of environment on optical spectrometer


Generally speaking, precision optical instruments have certain requirements for ambient temperature. Components made of different materials will also be distorted and deformed due to different expansion coefficients, resulting in deviation from the standards. The heat dissipation efficiency of optical elements and instruments will be less active, which will lead to changes in the performance of the optical system. High room temperature will reduce heat dissipation efficiency of the instrument. The interior temperature rise of the instrument will influence the electric components' performance, service life, insulating property. For example, the optical element of optical spectrometer will have drift spectral line when the ambient temperature changes, which will lead to high precision of measurement data, and it is difficult for the operator to accurately measure the data; low temperature will change the parameters of capacitor and inductor resistor, resulting in performance changes.

Humidity is a physical quantity indicating the degree of atmospheric dryness. At certain temperature, the less moisture contained in certain volume of air, the drier the air is; the more moisture, the more humid the air. The degree of dryness and wetness of the air is called humidity.

In this sense, absolute humidity, relative humidity, comparative humidity, mixing ratio, saturation difference, dew point and other physical quantities are commonly used as expression of measurement; here what we discuss is relative humidity. For users in relatively humid areas, a dehumidifier larger than 50L must be prepared, otherwise the spectrometer will not be able to work normally due to dampness. For example, in rainy seasons, the frequency of spectrum analyzer failure is higher than other seasons because of the high humidity in the air.

Related News
  • E-PAPER BUS STOPS HELP BUILD SMART CITIES

    E-PAPER BUS STOPS HELP BUILD SMART CITIES

    January 16, 2023"According to ePaper Insight statistics, by the end of 2021, Shanghai has installed more than 6,000 sets of 31.2-inch e-paper bus stops and 13.3-inch e-paper station stops and station poles, basically...view
  • Several Typical Working Modes of Spectroradiometer

    Several Typical Working Modes of Spectroradiometer

    November 11, 2020Spectroradiometer is used to measure the spectral distribution of radiation sources. It can not only establish the intensity and spectral characteristics of the target or background at the same time b...view
  • Knowledge Literacy of Decoration Luminance Meter

    Knowledge Literacy of Decoration Luminance Meter

    May 15, 2019Luminance meter is a kind of light-color measuring instrument, which measures brightness and chroma. Generally, it consists of optical system, detector and signal output processing system. According t...view
  • Complete Application of Chromatic Aberration Meter

    Complete Application of Chromatic Aberration Meter

    December 11, 2020Colorimeters are used in a wide variety of applications in the printing, painting, plastics, textile, automotive, and food industries.Color deviation has become a problem in the color printing, textil...view
  • HOW HOT IS THE MINI LED BACKLIGHT

    HOW HOT IS THE MINI LED BACKLIGHT

    October 12, 2022Introduction:With the development of Mini LED backlight,the release of Mini LED backlight products has been accelerated since 2022,which not only has a certain improvement in quantity, but also more new p...view
  • What Kinds of Luminance Meters are Common?

    What Kinds of Luminance Meters are Common?

    December 11, 2020In recent years, increasingly stringent testing of the brightness and colorimetric light sources and the need for rapid determination of faint light has led to the application of luminance meters. But...view


LATEST_NEWS



Contact