标准试验

Metering application for review of assessment standards: measurement standard assessment the original of the application; standard measurement of the original assessment certificate; evaluation standard measurement certificate is valid within the standard set measurement device and the main equipment of a copy of the certificate; returns to replace the standard measurement; measurement Standard in the near future to carry out verification / calibration of the original records and test / calibration copy of the certificate; stability of the measurement standard evaluation copy of the record; measurement standard measurement repeatability evaluation copy of the record; measurement standards in the two-cycle test run between the inspection or verification Test copies of the records.

申请计量标准复查考核：计量标准考核申请书原件；计量标准考核证书原件；计量标准考核证书有效期内标准器及主要配套计量设备的检定证书复印件；计量标准更换申报表；计量标准近期开展检定/校准的原始记录和检定/校准证书复印件；计量标准稳定性考核记录复印件；计量标准测量重复性考核记录复印件；计量标准器在两周期检定之间进行运行检查或验证比对试验记录复印件。4。

The modal tests of PCB and PCB assembly (free boundary condition and fixed boundary condition) were carried out. The equivalent elastic modulus and damping parameters of PCB can be gained, and the fixed boundary condition of finite element model was also determined. These will help to the following work.Second, drop impact tests of three different heights were carried out. Strains and acceleration responses of PCB were measured. Failed BGA packages of different test conditions were dyeing, and cross section analysis of failed solder joints was conducted.

针对JEDEC标准试件的局限性，提出了设计便于统计学研究焊点可靠性的试验试件的构想，利用有限元模态分析方法确定并验证了用圆形PCB组件替代JEDEC标准试件的可行性；通过一系列模态试验和有限元模态分析，确定了圆形PCB组件的相关试验参数，这不仅为跌落碰撞下PCB组件有限元模拟确定了较为合理准确的有限元模型，而且为正确地评价跌落碰撞下PCB组件的可靠性问题奠定了基础。2。

The modal tests of PCB and PCB assembly (free boundary condition and fixed boundary condition) were carried out. The equivalent elastic modulus and damping parameters of PCB can be gained, and the fixed boundary condition of finite element model was also determined. These will help to the following work. Second, drop impact tests of three different heights were carried out. Strains and acceleration responses of PCB were measured. Failed BGA packages of different test conditions were dyeing, and cross section analysis of failed solder joints was conducted. It was found in our drop tests that the root cause of lead-free solder joints under drop impact was the combined effect of mechanical shock and PCB bending vibration.

针对JEDEC标准试件的局限性，提出了设计便于统计学研究焊点可靠性的试验试件的构想，利用有限元模态分析方法确定并验证了用圆形PCB组件替代JEDEC标准试件的可行性；通过一系列模态试验和有限元模态分析，确定了圆形PCB组件的相关试验参数，这不仅为跌落碰撞下PCB组件有限元模拟确定了较为合理准确的有限元模型，而且为正确地评价跌落碰撞下PCB组件的可靠性问题奠定了基础。

Results Positive rate of Amsel was 28%, one step sialidase was 34%, Gram-stain was 30% and amines was 24%. Using Amsel as criterion, the sensitivity of one step sialidase and amines was 92.9% and 71.4%; specificity was 88.9% and 94.4%; positive predictive value was 76.5% and 83.3% negative predictive value was 97% and 89.5%, using Gram-stain method as criterion, the sensitivity of one step sialidase and amines was 93.8% and 66.7%, specificity was 92.1% and 94.3%, positive predictive value was 83.3% and 83.3%, negative predictive value was 97.2% and 86.8% respectively.

Amsel法阳性率28%，组织多胺试验阳性率24%，一步法唾液酸酶活性的检测试验阳性率34%，革兰染色细菌评分法阳性率30%；唾液酸酶活性检测法与Amsel法，革兰染色细菌评分法相比较差异无显著性；组织多胺试验与Amsel法，革兰染色细菌评分法相比较差异无显著性；以Amsel法为标准，一步法唾液酸酶活性检测法和组织多胺试验的灵敏度分别为92.9%和71.4%，特异性分别为88.9%和94.4%，阳性预期值分别为76.5%和83.3%，阴性预期值分别为97.0%和89.5%；以革兰染色细菌评分法为标准，一步法唾液酸酶活性检测法和组织多胺试验的灵敏度分别为93.8%和66.7%，特异性分别为92.1%和94.3%，阳性预期值都为83.3%，阴性预期值分别为97.2%和86.8%。

In order to overcome the defect of traditional methods and to find a new simply and effective time-domain method to eliminate the influence of boundary reflection. The main contents of studies and achievements are as follows: The liquefiable saturated sand dynamic character researches are conducted by means of the resonant column test and the dynamic tri-axial test; The undrain dynamic relationship between stress and strain, the damping ratio, saturated sand liquefaction mechanism, laboratory liquefaction standard, the effective factors of liquefaction are considered in laboratory. Liquefaction strength parameters used in element numerical simulation are obtained.

为克服传统方法存在的问题，寻求一种简单有效、能消除截断边界反射影响的时域有限元方法，本文主要开展了如下研究工作：对工程场地土体进行了标准贯入、静力触探、剪切波速等现场原位试验、室内动三轴试验以及共振柱试验，针对研究区域内可液化的饱和土进行了动力特性试验研究，分析了饱和土体的不排水动应力～应变关系和阻尼特性；对研究区域内的饱和砂土的液化机理，室内试验液化判别标准及影响饱和砂土液化的诸多因素进行了研究，得出了工程场地土体的抗液化强度指标等有限元模拟所需参数。

Especially in the mobile phone and computer peripheral industry, the Company independent research and development of mobile phone keypad testing machine Life expectancy, Life expectancy clamshell mobile phone tester, testing machine Life expectancy slider cell phone, cell phone drop test machine, testing machine to reverse the cell phone, mobile phone casing friction tester, RCA tapes wear resistance test machine, portable electronic products dedicated drop test machine, fully automatic torque tester Life expectancy, Life expectancy axis test machine, load displacement curve of test machine, the mouse wheel life testing machine, plug test machine, fully automatic servo system Plug test machine, laptop pressure testing machine, LCD pressure testing machine, universal testing machine, material testing machine servo system has been the major manufacturers, such as widespread adoption of the company's products in full compliance with the EN, DIN, BS, ASSTM, JIS, GB, ISO ...

特别是在手机及电脑周边行业，本公司自主研发的手机按键寿命试验机，手机翻盖寿命试验机，手机滑盖寿命试验机，手机跌落试验机，手机扭转试验机，手机外壳摩擦试验机，RCA纸带耐磨试验机，便携电子产品专用跌落试验机，全自动扭力寿命试验机，转轴寿命试验机，荷重位移曲线试验机，鼠标滚轮寿命试验机，插拔力试验机，伺服系统全自动插拔力试验机，笔记本电脑耐压试验机，LCD耐压试验机，万能材料试验机，伺服系统材料试验机等被各大制造厂商广泛采用本公司产品完全符合EN、DIN、BS、ASSTM、JIS、GB、ISO…等标准。

Electrical equipment test equipment General Wire tester, plug wire bending test machine, wire thermostat ball pressure testing machine, 90 peel strength test machine, plug wire pull testing machine penetration resistance, combustion testing machine, plug-line static tensile testing machine can be flexibility around the wire testing machine, wire print fastness testing machine, wire elongation testing machine, testing machine drum plugs, standard light boxes.

七。电工器材试验设备线材综合测试仪、插头引线弯折试验机，电线恒温球压试验机、90°剥离强度试验机、插头线突拉试验机、耐燃烧试验机、插头线静态拉力试验机、可绕电线柔软度试验机、电线印刷体坚牢度试验机、线材伸长率试验机、插头滚筒试验机、标准光源箱等。

Seven. Electrical equipment test equipment integrated wire tester, plug wire bending test machine, wire thermostat ball pressure testing machine, 90 peel strength test machine, plug wire pull testing machine penetration resistance, combustion testing machine, plug-line static tensile testing machine can be flexibility around the wire testing machine, wire print fastness testing machine, wire elongation testing machine, testing machine drum plugs, standard light boxes. Eight.

线材综合测试仪、插头引线弯折试验机，电线恒温球压试验机、90°剥离强度试验机、插头线突拉试验机、耐燃烧试验机、插头线静态拉力试验机、可绕电线柔软度试验机、电线印刷体坚牢度试验机、线材伸长率试验机、插头滚筒试验机、标准光源箱等。

The main products include: 1, tensile strength, universal testing machine: microcomputer-controlled universal testing machine, economic-type universal testing machine, tensile testing machine micro-computer, electric / manual (Vertical / Horizontal / double pole / single pole) Rally Units, micro-computer plug test machine, spring tension and compression testing machine, etc.; Second, environmental testing machine series: constant temperature and humidity chamber, drying oven, large load-aging room, walk-in constant temperature and humidity test chamber , Thermal Shock Test Chamber, UV weathering tester, salt spray testing machine, aging chamber three, cartons, packaging, furniture testing machine series: microcomputer carton compression testing machine, the breakdown strength test machine, drop (single arm / arms) Test Units, Units microcomputer vibration test, vibration test Analog Motor Transport Units four, electrical equipment testing machine series: plug wire bending test machine, drum testing machine plugs, plug wire hoist swing test machine, plug-line static tensile testing machine, sudden pull test machine, power cord bending test machine, combustion testing machine, 90-degree peel strength testing machine, torsion testing machine wire, wire abrasion test machine, flexible wires and flexibility testing machine, wire print Kennedy fastness testing machine, measuring the rate of wire testing machine, fatigue test handset line stretching machine, plug test machine, torsion testing machine cold, temperature testing machine, wire thermostat ball pressure testing machine, hot wire tester, leakage from marks tester, wire short-circuit / open circuit / high pressure / low pressure / insulation / conduction / mispairing tester; Friday, computer, mobile phone tester series: Life expectancy axis testing machine, testing machine life clamshell mobile phone, key life testing machine, resistance friction test machine, fully automatic torque tester, mobile Units drop test, tape wear-resistant test machine, the mouse roller life test machine; six, rubber, plastic, tape testing machine series: wear test machine, folding / Wear-resistant test machine, winding machine, vertical / rebound test machine, the permanent distortion compression test machines, foam compression stress test machine, foam plastic repeated compression test machines, test material removed machine, plastic machine Determination of Melt Index , melting point tester, heat distortion temperature test trough, falling ball / drop down / DuPont impact test machine, to maintain constant temperature test tape machine, adhesive tape early bowls tester, hardness tester, peel strength testing machine; seven, footwear, leather , Testing Machine Series: friction test machine, add sulfur testing machine, conveyor-type Needle detector machine, friction dyeing fastness tester, testing machineDecoloration friction, standard light box, cold testing machine

主要产品包括：一、拉力强度、万能材料试验机：微机控制万能材料试验机、经济型万能材料试验机、微电脑拉力试验机、电动/手动（立式/卧式/双杆/单杆）拉力台、微电脑插拔力试验机、弹簧拉压试验机等；二、环境试验机系列：恒温恒湿试验箱、干燥箱、大型负载老化室、步入式恒温恒湿试验室、冷热冲击试验箱、UV耐候试验机、盐水喷雾试验机、老化试验箱三、纸箱、包装、家私试验机系列：微电脑纸箱抗压试验机、破裂强度试验机、跌落试验台、微电脑振动试验台、模拟汽车运输振动试验台四、电工器材试验机系列：插头引线弯折试验机、插头滚筒试验机、插头线吊重摆动试验机、插头线静态拉力试验机、突拉试验机、电源线折曲试验机、燃烧试验机、90度剥离强度试验机、电线扭转试验机、电线耐磨损试验机、可挠电线柔软度试验机、电线印刷体坚牢度试验机、线材测长率试验机、听筒线伸缩疲劳试验机、插拔力试验机、低温冷挠试验机、温升试验机、电线恒温球压试验机、灼热丝试验机、漏电起痕试验机、线材的短路/断路/高压/低压/绝缘/导通/误配测试仪；五、计算机、手机试验机系列：转轴寿命试验机、手机翻盖寿命试验机、按键寿命试验机、耐磨擦试验机、全自动扭力试验机、手机跌落试验台、纸带耐磨试验机、鼠标滚轴寿命试验机；六、橡胶、塑料、胶带试验机系列：磨耗试验机、耐折/耐磨试验机、曲折试验机、垂直/反跳弹性试验机、永久压缩歪度试验机、泡棉压缩应力试验机、发泡塑料反复压缩试验机、试料磨平机、塑料熔融指数测定机、融点测试机、热变形温度试验槽、落球/落垂/杜邦冲击试验机、恒温胶带保持力试验机、胶带初粘性滚球试验机、硬度计，剥离强度试验机；七、制鞋、皮革、试验机系列：磨擦试验机、加硫试验机、输送式检针机、磨擦染色坚牢度试验机、双锤磨擦脱色试验机、标准光源箱、耐寒试验机

Second, Taiwan Billiton Nadeschda environmental testing equipment:(self-produced self-marketing) Life expectancy button testing machine, tensile testing machine for electric, Sweep / low frequency / analog automotive vibration test rig, programmable temperature and humidity box, aging test chamber, salt spray testing machine, packaging / phone drop test units, load / plug wire bending test machine, measuring the rate of wire tester, rub tester wearable mobile phone, cell phone slider / clamshell test machine, 90 peel strength test machines, falling ball impact test machine, the breakdown strength test machine, drum drop test machine, plug line hoist swing tester, impact test chamber, combustion testing machine, standard light boxes, the frequency to avoid network rooms, projectors, video measuring instrument, fully automatic servo system plug test machine.

按键寿命试验机、电动拉力试验机、扫频/低频/模拟汽车振动试验台、可程式恒温恒湿箱、老化试验箱、盐雾试验机、包装/手机跌落试验台、负载/插头引线弯折试验机、线材测长率试验机、手机耐磨擦试验机、手机滑盖/翻盖试验机、90°剥离强度试验机、落球冲击试验机、破裂强度试验机、滚筒跌落试验机、插头线吊重摆动试验机、冲击试验箱、燃烧试验机、标准光源箱、频避网房、投影仪、影像测量仪、伺服系统全自动插拔力试验机等。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。