一、產(chǎn)品簡介：
數(shù)顯白度儀適用于白色和近白色物體或粉末表面的白度測量。可以準確地得出與視感度相一致的白度值。對于紙張的不透明度可以準確測量。本儀器可以廣泛應用于紡織印染、油漆涂料、化工建材、紙張紙板、塑料制品、白色水泥、陶瓷、搪瓷、瓷土、、淀粉、面粉、食鹽、洗滌劑、化妝品等物體的白度測量。
Product introduction:
Digital whiteness meter is suitable for whiteness measurement of white and near-white objects or powder surfaces. The whiteness value can be accurately obtained in accordance with the visual sensitivity. The opacity of the paper can be accurately measured. This instrument can be widely used in whiteness measurement of textile printing and dyeing, paint coating, chemical building materials, paper and cardboard, plastic products, white cement, ceramics, enamel, porcelain clay, talcum powder, starch, flour, salt, detergent, cosmetics and other objects.
二、工作原理：
★儀器利用光電轉(zhuǎn)換原理，采用模數(shù)轉(zhuǎn)換電路，將測量樣品表面反射的輻亮度能量值，經(jīng)信號放大、A/D轉(zhuǎn)換，數(shù)據(jù)處理，A后顯示出相應的白度值。
★儀器由光源、光學系統(tǒng)、探測系統(tǒng)、數(shù)據(jù)處理與顯示系統(tǒng)等構(gòu)成，總體白度值為藍光度R457。定儀光譜漫反射擊比均為1的理想表面的白度為100，光譜漫反射擊比均為零的黑表面白度為0。
★本儀器按照國際照明委（CIE）規(guī)定的標準光源及照測條件而設計，通過嚴格檢測、調(diào)試，并執(zhí)行于企業(yè)標準Q/TDKY02-2004，可適用于GB2913、GB5950、GB8940.1、GB12097、GB13025.2等**標準。
Second, the working principle:
★ The instrument uses the principle of photoelectric conversion and adopts analog-to-digital conversion circuit to measure the radiance energy value reflected from the sample surface. After signal amplification, A / D conversion and data processing, the corresponding whiteness value is displayed after A.
★ The instrument is composed of light source, optical system, detection system, data processing and display system, etc. The overall whiteness value is blueness R457. The whiteness of an ideal surface with a spectroscopic diffuse reflectance ratio of 1 is 100, and the whiteness of a black surface with a spectral diffuse reflectance ratio of zero is 0.
★ This instrument is completely designed according to the standard light source and inspection conditions stipulated by the International Commission for Illumination (CIE). It has passed strict testing and debugging and is implemented in the enterprise standard Q / TDKY02-2004. It can be applied to GB2913, GB5950, GB8940.1, GB12097, GB13025.2 and other standards.
三、技術(shù)參數(shù):
★測量范圍: 0-1999%
★顯示方式: 數(shù)字顯示
★分 辨 率: 0-1
★測量孔徑: Φ30㎜
★照測條件: 45℃
★測量方式: R457藍光白度
★儀器光源: 6V/5W鹵素燈
★零點漂移: ≤0.2
★示值漂移: ≤0.3
★電壓被動穩(wěn)定性: 0.1
★測量重復性:≤0.3
★供電電源: 220V±20%
★功 耗: 30W
★外型尺寸: 340×270×280mm
Third, the technical parameters:
★ Measuring range: 0-1999%
★ Display mode: Digital display
★ Resolution: 0-1
★ Measuring aperture: Φ30㎜
★ Inspection conditions: 45 ℃
★ Measurement method: R457 blue light whiteness
★ Instrument light source: 6V / 5W halogen lamp
Zero drift: ≤0.2
★ Indication drift: ≤0.3
★ Passive stability of voltage: 0.1
Measurement repeatability: ≤0.3
★ Power supply: 220V ± 20%
★ Power consumption: 30W
★ Dimensions: 340 × 270 × 280mm
三、儀器特點：
★用CAD電腦輔助設計，使儀器外形更合理更好。
★采用高效率，低損耗開關電源，使可靠性更高。
★采用優(yōu)質(zhì)進口元器件，使工作更穩(wěn)定，使用壽命更長。
★采用簡潔的光路設計，使用、維護更簡單。
★采用經(jīng)修正的濾色系統(tǒng)，可以定量反映熒光增白后的白度值。
★采用合理的試樣座與活動平臺設計，可以有效地避免測量孔口漏光現(xiàn)象。
★采用簡單的操作，可以準確的測量紙張的不透明度。
★采用**標定白板來傳遞校正值，使測量值更準確。
Fourth, the characteristics of the instrument:
★ Use CAD computer-aided design to make the appearance of the instrument more reasonable and better.
★ High efficiency and low loss switching power supply are used to make the reliability higher.
★ The use of high-quality imported components makes the work more stable and the service life longer.
★ Simple light path design makes it easier to use and maintain.
★ Adopting a modified color filter system, it can quantitatively reflect the whiteness value after fluorescent whitening.
★ The reasonable design of the sample holder and movable platform can effectively avoid the light leakage phenomenon of the measuring orifice.
★ With simple operation, you can accurately measure the opacity of the paper.
★ Use ** calibration whiteboard to transmit the correction value to make the measurement value more accurate.
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