壓力校驗(yàn)臺(tái)自動(dòng)化校準(zhǔn)系統(tǒng)

1、壓力校驗(yàn)臺(tái)自動(dòng)化校準(zhǔn)系統(tǒng) 隨著科學(xué)技術(shù)的發(fā)展， 往往造成許多現(xiàn)場(chǎng)壓力儀表雖 到檢定周期， 卻由于不能停產(chǎn)也就不能從作業(yè)。 壓力儀表 的工作原理是彈簧管在壓力或真空作用下產(chǎn)生彈性變形 引起管端位移， 其位移通過機(jī)械傳動(dòng)機(jī)構(gòu)進(jìn)行放大后再傳 遞給指示裝置， 可在刻有法定計(jì)量單位的分度盤上讀出指 針?biāo)甘镜谋粶y(cè)壓力值或真空量值。 自動(dòng)化校準(zhǔn)系統(tǒng)的具 體實(shí)現(xiàn)過程首先，標(biāo)準(zhǔn)源和數(shù)字多用表按照要求開機(jī)預(yù) 熱，連接硬件設(shè)備（ gpib 卡、 488 電纜等），硬件連接完 成后， 啟動(dòng)計(jì)算機(jī)， 搜尋整個(gè)測(cè)試系統(tǒng)的物理地址分配情 況，根據(jù)搜索到的各個(gè)儀器地址，在校準(zhǔn)軟件運(yùn)行時(shí)，設(shè) 置正確的地址配置。 Automa

2、ted testing technology with the development of science and technology, collects and also got very big development, oversize is continuity of cohesion in each process of metallurgy manufacturing enterprises, although often cause a lot of pressure instrument to test cycles, but unable to stop producti

3、on also cannot from the job. Working principle of pressure gauge is spring tube produce elastic deformation under pressure or vacuum tube displacement, the displacement enlarged by mechanical transmission mechanism, and then passed to the indicating device, can be engraved with the legal unit of mea

4、surement on the dial of the measured pressure value indicated by the read pointer or vacuum. Automatic calibration system of the concrete implementation process first of all, the standard source and DMMS warmed up in accordance with the requirements, connecting hardware devices (gpib card, 488 cable

5、, etc.), the hardware connection is complete, restart the computer, search for the physical address of the testing system distribution, according to search to the address of each instrument, the calibration software is run, set the correct address configuration. 初始化模塊要設(shè)置被測(cè)試設(shè)備的校準(zhǔn)項(xiàng)目， 設(shè)置被校 儀器和標(biāo)準(zhǔn)源的 gpib

6、 地址，選擇是否是首次測(cè)試，此功 能的目的是為了保存測(cè)量的數(shù)據(jù)， 防止意外發(fā)生使測(cè)量數(shù) 據(jù)丟失， 需要重新進(jìn)行測(cè)試。 選擇中英文語言， 選擇校準(zhǔn)、 檢定，選擇被測(cè)試設(shè)備的名稱。 初始化設(shè)置就完成了。 （2） 數(shù)據(jù)采集動(dòng)態(tài)顯示模塊。 該模塊的主要功能包括： 初始化 儀器、設(shè)置儀器的狀態(tài)、測(cè)量數(shù)值、數(shù)據(jù)位數(shù)控制、動(dòng)態(tài) 顯示數(shù)據(jù)、數(shù)據(jù)結(jié)果判定、數(shù)據(jù)保存等。 Initialization module to set up test equipment calibration program, calibrated instruments are set and the gpib standard so

7、urce address, choose whether to test for the first time, is the purpose of this function in order to save the measurement data, to prevent the accident makes the measurement data is missing, need to be tested. Choose Chinese and English languages, calibration, verification, by the name of the test e

8、quipment. Initialize the set up is completed. (2) the dynamic display of data acquisition module. The modules main features include: initialize the state of the instrument, set the instrument, measurement values, digit control, dynamic display data, data, results, data, etc. 本模塊中的數(shù)據(jù)顯示位數(shù)、 數(shù)據(jù)量程、 上下限等都

9、是 根據(jù)測(cè)試計(jì)量對(duì)儀器的要求而自動(dòng)生成的， 數(shù)據(jù)結(jié)果判定 也是自動(dòng)完成的。 程序把那些不合格的數(shù)據(jù)用紅色的字體 顯示，使計(jì)量員在測(cè)量結(jié)束后容易發(fā)現(xiàn)這些數(shù)據(jù)不合格。 數(shù)據(jù)采集動(dòng)態(tài)顯示模塊的前面板。 （3）證書和原始記錄生 成模塊。 自動(dòng)生成證書和原始記錄， 給計(jì)量員的工作帶來 極大的便利， 而且消除了人為操作易產(chǎn)生的出錯(cuò)， 解放了 勞動(dòng)力。計(jì)量員只需在證書生成模塊的前面板輸入相關(guān)的 儀器信息和校準(zhǔn)信息，校準(zhǔn)項(xiàng)目，選擇相應(yīng)的證書摸板， 程序即可自動(dòng)生成相應(yīng)的校準(zhǔn)證書和原始記錄。 證書模塊 的前面板。 Data display digits in this module, data range, t

10、he lower limit is according to the requirement of the test measurement equipment and automatically generated, the data result determination is also done automatically. Program to put those unqualified data in red font, according to the measurers through easy to find these at the end of the measureme

11、nt data is unqualified. The front panel of the dynamic display of data acquisition module. (3) certificates and records generated module. Automatically generate a certificate and original records, to measurers through work to bring great convenience, but also eliminates the error caused by artificia

12、l operation, the liberation of the labor force. Measurers through just before the certificate generation module of the instruments panel input related information and calibration, the calibration program, select the corresponding certificate touch board, the program can automatically generate the co

13、rresponding calibration certificate and original records. Certificate module of the front panel. 1. 自動(dòng)化檢測(cè)儀表在壓力表校準(zhǔn)方面的應(yīng)用 1. Automatic test instruments in the pressure gauge calibration 1.1 在線校準(zhǔn)預(yù)期。 （ 1）目的：實(shí)施在線校準(zhǔn)適 應(yīng)生產(chǎn)流程計(jì)量需求， 吊車 降低外送檢費(fèi)用； （2）校準(zhǔn)儀 表范圍：本企業(yè)現(xiàn)場(chǎng)在用壓力儀表； (3)校準(zhǔn)范圍：0 100mpa ; (4)校準(zhǔn)對(duì)比準(zhǔn)確度：1.5%1.6% ; (5

14、)預(yù) 期目標(biāo)：實(shí)現(xiàn)在線壓力儀表的受控、有效； ( 6)校準(zhǔn)方案 種類： a. 理想型校準(zhǔn)比對(duì)； b. 實(shí)用型校準(zhǔn)比對(duì)。 1.1 online calibration. (1) purpose: implementation of the online calibration to meet the needs of production process measurement, reduce the inspection costs; (2) calibration instrument: this business field with pressure gauge; (3) the cal

15、ibration range: 0 100 mpa; (4) contrast calibration accuracy: 1.5% 1.6%; (5) target: realize on-line instrument pressure controlled and effective; (6) calibration solution types: a. the ideal type of calibration comparison; B. the practical calibration. 1.2 材料準(zhǔn)備。( 1 )專用管道打孔器； ( 2)符合 現(xiàn)場(chǎng)壓力儀表準(zhǔn)確度及量程的數(shù)塊相

16、應(yīng)受控有效標(biāo)準(zhǔn)表； （ 3）校準(zhǔn)比對(duì)記錄。 1.2 material preparation. （1） special pipeline punch; （2） comply with the corresponding controlled pressure meter accuracy and range of a few effective standard table; （3） the calibration record. 1.3 在 泰山奇石 線校準(zhǔn)比對(duì)方案。包括兩個(gè)方 面：一是實(shí)用型對(duì)壓力儀表的校準(zhǔn)比對(duì)。 （ 1）在同一管道 上：在距擬被校準(zhǔn)的現(xiàn)場(chǎng)壓力儀表的適當(dāng)范圍內(nèi)， 用專用 管

17、道打孔器引出導(dǎo)壓管路， 在導(dǎo)壓管路中間安置一截止閥 （截止閥處于關(guān)閉狀態(tài)） ，截止閥后的接口處安裝壓力變 送器與擬被校準(zhǔn)儀表同規(guī)格的受控有效標(biāo)準(zhǔn)壓力表； （ 2） 緩慢開啟截止閥至全開， 待管道內(nèi)流體介質(zhì)充分進(jìn)入標(biāo)準(zhǔn) 表內(nèi)數(shù)分鐘后，分別讀取兩塊表的指示值； （ 3）填寫校準(zhǔn) 比對(duì)記錄。 二是理想型對(duì)壓力儀表的校準(zhǔn)比對(duì)， 比如說可 以自制一臺(tái)流動(dòng)簡(jiǎn)易“壓力校驗(yàn)臺(tái)”，這方面主要包括： （ 1） 在流體介質(zhì)管道上，關(guān)閉在用的現(xiàn)場(chǎng)壓力儀表的“截止閥 1”；（ 2）在截止閥后適當(dāng)延長(zhǎng)導(dǎo)壓管路； （ 3）在延長(zhǎng)導(dǎo)壓 管路上安裝一只三通； （ 4）三通的直管口的接口處安裝在 用的指示為零的壓力儀表； （ 5

18、）三通的丁字管口的接口處 新安裝“截止閥 2”；（6）在“截止閥 2”后接壓力“專用校驗(yàn)管” 至簡(jiǎn)易流動(dòng)“壓力校驗(yàn)臺(tái)”上預(yù)置的“專用校驗(yàn)管接口”；（ 7 ） “壓力校驗(yàn)臺(tái)”上還預(yù)置有受控、有效的相應(yīng)型號(hào)規(guī)格的標(biāo) 準(zhǔn)壓力表；（ 8）檢查無遺漏后，逐一緩慢開啟截止閥 1、 截止閥 2 至全開；數(shù)分鐘后，分別讀取兩塊表的指示值； (9)填寫校準(zhǔn)比對(duì)記錄。 1.3 online calibration scheme. Includes two aspects: one is the practical calibration of pressure gauge. (1) on the same pip

19、eline: from the proposed site is calibrated pressure gauge in the proper range, using special pipeline puncher, pipeline derivation in the middle of pipeline placing a stop valve (globe valve in the closed state), after the cut-off valve outlet pressure transmitter installation and fitting is calibr

20、ated with the specifications of the instrument is controlled effectively the standard pressure gauge; (2) slowly open the stop valve to full open, for the pipe flow media fully into the standard table after a few minutes, read two pieces of table indicated value respectively; (3) fill in the calibra

21、tion records. 2 it is the ideal type of pressure gauge calibration, such as flow can be made a simple pressure calibration station, it mainly includes: (1) on the fluid pipe, close the pressure gauge at the scene of the use of the cut-off valve 1; (2) after the cut-off valve, extend; pipeline (3) in the extension of the pressure piping installation guide a tee;