应力双折射测试仪

低双折射旋转光纤LB650 | LB1060 | LB1300 | LB1300RC | PME1300-10 Spun fiber：Rotating glass preform during fiber drawing process produces a waveguide with unique properties: all fiber non-uniformities are averaged along all possible directions, effectively cancelling out total fiber birefringence. With total (but not local) birefringence close to zero, we obtain a fiber that will hold circular polarization (even when bent or twisted). Unlike conventional PM fibers that can hold only linearly polarized light, or annealed fiber that requires special handling, this low-birefringence fiber preserves both linear and circular polarization and can relay it with minimum error over large distances. Highly-birefringent preforms with incorporated stress produce spun fibers that can withstand significant bending and twisting and hold polarization over large number of coils with reasonable accuracy (without costly annealing process). Polarization accuracy in this case depends on local (instant) birefringence that introduces a small constant error, independent of fiber length. Elliptical core fiber Our elliptical-core PME1300-10 fiber provides high polarization extinction and insensitivity to bending and twisting stress. Unlike conventional PM fibers, birefringence of the elliptical-core waveguide has low thermal dependence (10 times lower than Panda). Due to core geometry the splice losses to a conventional circular-core fiber (SMF, Panda or Bow-tie) are asymmetrical - 0.5 dB for circular-toelliptical coupling and 2.5 dB for elliptical-to-circular arrangement.Elliptical core fiber：Our elliptical-core PME1300-10 fiber provides high polarization extinction and insensitivity to bending and twisting stress. Unlike conventional PM fibers, birefringence of the elliptical-core waveguide has low thermal dependence (10 times lower than Panda). Due to core geometry the splice losses to a conventional circular-core fiber (SMF, Panda or Bow-tie) are asymmetrical - 0.5 dB for circular-toelliptical coupling and 2.5 dB for elliptical-to-circular arrangement.Features：- High extinction ratio- Reduced coupling loss- Low temperature dependence Applications - Fiber-optic gyros- Optical current sensors - Fiber amplifiers需要咨询更多的服务请与我们的市场人员联系。

JHMK多点残余应力测试仪器JHMK多点残余应力测试仪器是由JHYC静态应变仪和JHZK精密钻孔装置共同构成的盲孔法残余应力测量系统，在软件进行设置后，自动实时计算残余应力，并实时显示和保存应力应变数值，使测量直观明了，精度高。JHMK多点残余应力测试仪器应用范围1.适于各种金属和非金属材料的盲孔法残余应力多点测量。2.对零件的形状大小和表面没有特殊要求，对零件有轻微的破坏。3.适合科研和要求较高的现场测量。JHYC静态应变仪功能特点1.测量能力：各种材料的应力应变、盲孔、环芯、切割法残余应力测试。2.接入不同的传感器，可对力、荷重、压力、扭矩、位移、电压、电流等进行采集。3.可满足教学、工程技术和科研的需求，仪器检定指标达到0.1级。4.仪器具有桥路、长导线、公共，软件多种补偿方式，稳定性好。5.适合各种应变花，设置简单方便，并自动保存设置参数。6.硬件全量程自动平衡，不损失测量范围，程控调零。7.自动实时计算、记录残余应力释放曲线，并生成残余应力报告；8.测量过程中可在被测材料上钻孔、电焊、等离子切割等。现场抗干扰能力强。如果想要咨询更多信息，可搜南京聚航网查看详情，电联聚航。

PR-32a折射仪 日本ATAGO 产品详细介绍 高品质RX-5000数字式折射计系列之一，带有漏斗槽,可以灌入样品进行连续测量。也可对不同样品进行连续测量，不需每次清洗棱镜，提高测量效率。 产品功能描述 测量范围： 　 折射率(nD) 1.32700 to 1.58000 Brix 0.00 to 95.00% 最小标度： 　 折射率(nD) 0.00001 Brix 0.01% 测量精度： 　 折射率(nD) ± 0.00004 Brix ± 0.03% 温度校正 5~60℃ 输出接口 RS-232, CDP-62数字式打印机(另售) 损耗 40VA 电源需求 电压 AC100~240V, 50/60Hz 产品特征 长度 21cm 宽度 29cm 高度 34cm 重量 11.0kg(除漏斗槽) 产品持有证书 　 CE