Set so that the readings of the test indicator at both ends of the finished face coincide with each other 测量前应进行调节，当测试用指示表处于精加工面两端时，指示表的读数相同。
Additional stock accessories include thermowells , wiring , indicating meters , timers and recorders as well as electro - mechanical contactors , thermostats and thermoswitches 另外库存附件包括热电偶套管，配线，指示表，计时器，记录仪和机电接触器，温控表热电偶温度调节器。
This method detects the dial gauge precision by applying digital image - processing as the digital image - processing has advantages of high precision , high efficiency and auto - detecting 将数字图像处理技术用于指示表的精度检测，具有精度高、效率高、易于实现自动测量等优点。
Optionally , to invoke the table - scaling feature , the name of an existing table can be followed by a number indicating the projected number of rows in the table Adventureworks . dbo . department 。为了调用表的扩展功能，可以选择在现有表名后加上一个数字，指示表中的预定行数。
This study puts forward a auto - detecting method of detecting the precision of dial gauge , this method depend on digital image - processing technique , high precision grating technique and step - electromotor technique 本文提出了一种指示表全自动检定方法，该检定方法是基于数字图像处理技术，精密光栅测量技术以及步进电动机控制技术之上。
Abstract : the error source of raster indicator verification instrument is analized . the synthetic standard uncertainty and expansion uncertainty of the standard unit is determined . the reliable basis for the verification of indicating type measuring tool is provided 文摘:分析了光栅式指示表检定仪标准装置的误差来源，确定了该标准装置的合成标准不确定度及扩展不确定度，为指示表类量具的检定提供了可靠性依据。
This system automatic detects the precision of dial gauge by using image - processing technique and the method can advantage work efficiency , eliminates the artificial interfere factor . this method can make detecting process more objectivity and make detecting result more reliability 采用图像处理技术进行指示表的精度检定可以大大提高劳动效率，减少人为因素干扰，使检定过程更具客观性，检定结果更准确，因此具有广泛的市场前景。
Model and suffix codes e . g . hgssty - 1702m1b3d2e1g2f22 01mpa means : high intelligence mode digital sensor . whith linear indicator , pipe curving bracket , liquid discharge valve down . general cable connector , sensor connector uses the welded pipe connector , construction material all adopts 316 stainless steel , measuring range of 01mpa means the pressure of gauge 型号选型举例如下： hgssty - 1702m1b3d2e1g2f22 01mpa ,表示高级智能型全数字传感器带线性指示表头管装弯支架排液阀在下部，普通电缆接头传感器接头采用焊管接头结构材料采用316l不锈钢量程为0 mpa表压压力。
The computer acquires the image of dial gauge by high precision ccd video , after that the computer will process the dial gauge image by some image - processing algorithms such as image segmentations , edge searching , area segmentations and locating the pointer by the " circle " . at last the computer will recognise the dial pointer position and work out the precision of dial gauge in accordance with nation criterion of dial gauge . this study presents several optimum algorithms to realize quick recognition of the pointer and calibration lines of detected dial and improve the accuracy and real time quality of detecting 本系统由计算机控制步进电动机的运动，进而驱动指示表表针的运动，通过高精度ccd摄像机实时获取表盘图像数据，同时进行表盘图像的相关处理，包括阈值分割、边缘检测、图像锐化以及区域分割和定心圆检测等，最终快速识别出表盘指针所处位置，最后根据国家指示表类检定规程所制定的算法检定出指示表的各种精度，本系统所采用的图像处理算法运算量少，速度快，从而大大提高了系统的实时性。
Automatic tester for dial gauges is an intelligent instrument unified mechanism light and electronic . the grating displacement sensor that has high accuracy ( length gauge ) and camcorder is image sensor consummately automatic sampling is adopted . it is controlled and handled data by computer . so it has realized the intelligence and automation of calibrating course . the instrument has features of high precision , efficiency , flexible and convenient in operation , and so on 指示表自动检定仪是机、光、电一体化的智能化仪器，采用了具有高精度的光栅位移传感器(长度计)和ccd摄像机作为图像传感器完成自动采样，用计算机进行控制与数据处理，从而实现了检定过程的自动化和智能化，使仪器具有高精度、高效率、操作灵活、使用方便等特点。
