Ultraviolet radiation illuminometer domestic status quo response and solutions
For this relatively confusing situation, the best solution is no better than a unified standard. On the industrial production of UV irradiance meter used in terms of most of the UV curing and UV exposure on the measurement of UV furnace or UV lamp radiation illuminance or energy, the band is in the UVA and UVB, used to measure the energy of ultraviolet radiation instrument a little bit more commonly known as the UV energy meter. For use and calibration, we recommend:
1, the same company as far as possible to use the same manufacturer of the same type of instrument, to facilitate the unity of value, easy to record and compare within the company. The same company with different models of illuminance meter for measurement, the measurement results may also have a large difference.
2, industrial UV lamp irradiance is not very stable and uneven, measurement of the best several times. UV lamps are generally turned on after a period of time, the luminous condition tends to stabilize.
3, for many instruments used to measure the curing energy, in many cases just care about a reading, such as production experience, with a certain instrument measured 1000mJ/cm2 energy, curing good, maybe this instrument and the national standard is a big difference, but you only need to know that this instrument measured to 1000mJ/cm2 that is normal, this time to pay attention to the instrument is just the annual rate of change, or according to the calibration Or according to the data given in the calibration certificate will be added to the instrument with a correction factor, and re-record a reading after correction.
4, not all instruments can be calibrated in accordance with existing national standards, so when the instrument is detected when the measurement error is very large, to confirm whether the instrument's measurement band and the national standard is the same, such as inconsistency, either sent back to the original factory check, or according to the calibration certificate after the correction, the reference to the use of the ground.
5, due to the production of ultraviolet irradiator detector material specificity, the annual rate of change is still relatively large (especially domestic instruments, foreign instruments to do a relatively good job), coupled with frequent use, it is easy to produce the value of drift, such as the value of the best suspicion of the best in a timely manner to send the test. 6.
6. pay attention to the service life of the ultraviolet irradiator, especially for close to the service life or overuse of the ultraviolet irradiator, should be used with reference.
7, for some special irradiator, measuring a large number of ranges (such as W or J level), special bands (such as UVV band visible radiation), there is no calibration procedures, can be sent to the original factory, the National Institute of Metrology and other units for calibration.
Finally, a brief description of the C-band instruments, such instruments are mainly used in the medical field, because the short wavelengths of ultraviolet light has a role to play, the measurement of the relatively small range, most of these instruments domestically produced, and the degree of consistency with the national standard.
