一、概述：
QX系列汽油辛烷值柴油十六烷值測(cè)定儀，分A、B、C、D、E五種型號(hào)，A型為汽油辛烷值測(cè)定儀、B、C、D型簡(jiǎn)稱為汽柴油兩用測(cè)定儀、B型為臺(tái)式結(jié)構(gòu)交流供電、C型為臺(tái)式結(jié)構(gòu)交直流供電、D型為手持式結(jié)構(gòu)直流供電、E型為柴油十六烷值，顯示屏上簡(jiǎn)稱測(cè)定儀，B、C、D三款機(jī)型功能一致。QX系列測(cè)定儀可測(cè)航空汽油、車用汽油、調(diào)合汽油、乙醇汽油、甲醇汽油、車用柴油。是用于機(jī)械化、石油煉化企業(yè)、儲(chǔ)油和調(diào)油單位快速測(cè)定汽油辛烷值和柴油十六烷值的儀器。該儀器采用大屏幕顯示，背燈亮麗柔和，界面字體清晰，具有：操作簡(jiǎn)便、測(cè)定速度快、精度高、范圍廣、功能全等特點(diǎn)。本儀器具有四項(xiàng)技術(shù)創(chuàng)新：1、數(shù)字化技術(shù)?？?力強(qiáng)、變差小、精密度高；再現(xiàn)性，重復(fù)性好。2、儀器采用自動(dòng)賦值標(biāo)定技術(shù)，標(biāo)定程序簡(jiǎn)單，方法科學(xué)，標(biāo)定結(jié)果準(zhǔn)確可靠。3、測(cè)定程序采用自動(dòng)回歸技術(shù)，以ASTM--CFR試驗(yàn)機(jī)測(cè)定結(jié)果為標(biāo)準(zhǔn)，有針對(duì)性的進(jìn)行回歸，提高了測(cè)定精度、擴(kuò)大了測(cè)定范圍。4、對(duì)不同油品通過(guò)予先回歸可做到一鍵測(cè)定，方便客戶使用。四項(xiàng)技術(shù)創(chuàng)新：采用了人性化的設(shè)計(jì)、操作簡(jiǎn)便、提高了儀器的測(cè)定精度，拓展了儀器的使用范圍，展現(xiàn)了儀器的實(shí)用價(jià)值。
二、工作原理：
車用汽油辛烷值測(cè)定儀原理是按國(guó)標(biāo)GB/T5487，使用ASTM—CFR試驗(yàn)機(jī)實(shí)現(xiàn)的，也是*的。它是在嚴(yán)格試驗(yàn)條件下:以具有可變壓縮比的標(biāo)準(zhǔn)發(fā)動(dòng)機(jī)為手段，以參比燃料為標(biāo)準(zhǔn)相比較測(cè)定的。QX系列測(cè)定儀是采用測(cè)定油品組分綜合介電常數(shù)的方法測(cè)定的。它是以嚴(yán)謹(jǐn)?shù)臄?shù)學(xué)模型為回歸的理論基礎(chǔ)，以*的電子測(cè)量技術(shù)為手段，以CFR試驗(yàn)機(jī)測(cè)定結(jié)果為標(biāo)準(zhǔn)，有針對(duì)性的進(jìn)行回歸，有針對(duì)性的測(cè)定以保證測(cè)定精度，突破了非物理量無(wú)法量值傳遞的難題，相當(dāng)于CFR試驗(yàn)機(jī)對(duì)QX系列測(cè)定儀的量值傳遞，實(shí)現(xiàn)了與相關(guān)國(guó)標(biāo)接軌。
儀器由微電腦和傳感器組成。傳感器采集到的信號(hào)，傳輸?shù)轿㈦娔X輸入端經(jīng)CPU處理后顯示測(cè)定結(jié)果。屏幕顯示（研究法、馬達(dá)法、抗爆指數(shù)），并可存儲(chǔ)、讀取、瀏覽、打印。
三、技術(shù)性能：
1、工作環(huán)境：環(huán)境溫度 10℃～35℃ 相對(duì)濕度 ≤85%
2、測(cè)定范圍：
(1)航汽： 87.0～105.0/MON
(2)車汽：
國(guó)標(biāo)： 70.0～110.0/RON 判斷： 60.0～120.0/RON
調(diào)合： 75.0～120.0/RON 輕質(zhì)： 50.0～80.0 /MON
異構(gòu)：87.0～108.0/RON 芳烴：95.0～120.0/RON
乙醇： E93: 92.0 ～95.0/RON 甲醇：M93: 85～100.0/RON E97:95.0～99.0/RON M97: 92.0～110.0/RON
(3)車柴： 25～75/CN (十六烷值) 甲醇含量：M5～M25%
20～80/CI (十六烷指數(shù))
3 、準(zhǔn)確度：
航汽： ≤± 1.5/MON
車汽： ≤±1.5/RON ≤± 1.5/MON
車柴： ≤±2.6/CN ≤±2.6/CI
回歸樣本復(fù)測(cè): ≤±0.5/RON ≤±0.5/MON
回歸試樣實(shí)測(cè): ≤±1.5/RON ≤± 1.5/MON
標(biāo)定準(zhǔn)確度： ≤±0.2/RON
4 、精密度（置信水平95%）再現(xiàn)性：≤±0.5/RON 重復(fù)性：≤±0.2/RON
5 、小分度： 0.1/RON 0.1/MON
6 、響應(yīng)時(shí)間: 1S
7 、測(cè)定結(jié)果： 液晶顯示、存儲(chǔ)打印
8 、外形尺寸： 臺(tái)式： 300×250×120 mm
手持式： 210×100×40 mm
9 、使用電源： A、B型：AC220V±10%；50HZ±1 臺(tái)式
C型 ： 交直流兩用，AC220V±10V/3.7V 臺(tái)式
D型 ： 充電電池供電， DC 3.7V 手持式
QX series of octane number of gasoline octane number of coke analyzer
I. Overview:
QX gasoline octane number of cetane number analyzer, sub-A, B, C, D, E five models, A type of octane number for the petrol analyzer, B, C, D type referred to as dual-use gasoline and diesel C-type AC-DC power supply for the desktop structure, D-type hand-held structure for DC power supply, E-type for the cetane value of diesel dedicated, the display on the detector, B, C, D three models the same function. QX series of measuring instrument can be measured aviation gasoline, motor gasoline, blending gasoline, ethanol gasoline, methanol gasoline, automotive diesel. Is used for mechanized units, oil refining enterprises, oil storage and oil units for rapid determination of gasoline octane number and diesel cetane number of special equipment. The instrument uses large-screen display, bright and soft backlight, the interface font clear, with: simple, fast measurement, high precision, wide range, full-featured features. The instrument has four technical innovations: 1, digital technology. Anti-interference ability, small variation, high precision; reproducibility, good repeatability. 2, the instrument uses automatic assignment calibration technology, calibration procedure is simple, scientific method, the calibration results accurate and reliable. 3. The automatic regression technique was used to determine the result, and the results were calibrated by ASTM - CFR testing machine. The precision was improved and the measuring range was enlarged. 4, the return of different oils can be achieved through a pre-determination, to facilitate customer use. Four technical innovations: the use of a human design, easy operation and improve the measurement accuracy of the instrument, expanding the use of the instrument, showing the practical value of the instrument.
Second, the working principle: motor gasoline octane number tester is based on national standard GB / T5487, using ASTM-CFR test machine to achieve, but also internationally recognized. It is measured under strict test conditions by means of a standard engine with a variable compression ratio as compared to a reference fuel. QX series of measuring instrument is the use of the determination of oil components of the integrated dielectric constant of the method of determination. It is based on rigorous mathematical model for the regression of the theoretical basis of advanced electronic measurement technology as a means to CFR test results as the standard test, targeted regression, targeted to ensure that the determination of precision, breaking the Non-physical quantity can not pass the problem, the equivalent of CFR test machine on the QX series of measuring instrument of the value of the transfer, to achieve the integration with the relevant national standard.
The instrument consists of a microcomputer and a sensor. Sensor to collect the signal transmitted to the microcomputer input by the CPU after the display of measurement results. Screen display (research method, motor method, antiknock index), and can store, read, browse, print.
Third, the technical performance:
1, the working environment: Ambient temperature 10 ℃ ~ 35 ℃ Relative humidity ≤ 85%
2, measuring range:
(1) Air steam: 87.0 ~ 105.0 / MON
(2) car steam:
GB: 70.0 ~ 110.0 / RON judgment: 60.0 ~ 120.0 / RON
Blending: 75.0 to 120.0 / RON Light: 50.0 to 80.0 / MON
Isomer: 87.0 to 108.0 / RON Aromatics: 95.0 to 120.0 / RON
RON M97: 92.0 to 95.0 / RON Methanol: M93: 85 to 100.0 / RON E97: 95.0 to 99.0 / RON M97: 92.0 to 110.0 / RON
(3) car wood: 25 ~ 75 / CN (cetane number) Methanol content: M5 ~ M25%
20 to 80 / CI (cetane index)
3, Accuracy:
Steam: ≤ ± 1.5 / MON
Vehicle steam: ≤ ± 1.5 / RON ≤ ± 1.5 / MON
Vehicle fuel: ≤ ± 2.6 / CN ≤ ± 2.6 / CI
Retested sample retest: ≤ ± 0.5 / RON ≤ ± 0.5 / MON
Regression sample measured: ≤ ± 1.5 / RON ≤ ± 1.5 / MON
Calibration accuracy: ≤ ± 0.2 / RON
4, Precision (95% confidence level) Reproducibility: ≤ ± 0.5 / RON Repeatability: ≤ ± 0.2 / RON
5, the minimum sub-degree: 0.1 / RON 0.1 / MON
6, the response time: 1S
7, measurement results: liquid crystal display, storage printing
8, Dimensions: Desktop: 300 × 250 × 120 mm
Handheld: 210 × 100 × 40 mm
9, the use of power: A, B type: AC220V ± 10%; 50HZ ± 1 desktop
C: AC and DC, AC220V ± 10V / 3.7V desktop
D-type: rechargeable battery-powered, DC 3.7V hand-held
