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数字源表的使用方法一、数字源表是什么？数字源表，简单来说，就是一种多功能的测量仪器。
它就像一个全能选手，能测量电流、电压，还能输出电流和电压，厉害得很！这玩意儿在电子测试领域那可是大有用处，不管是搞科研，还是做产品检测，都离不开它。
1.1 数字源表的特点。
它的精度那是相当高，一点点小的变化都能给你测出来。
而且稳定性好，不会今天测一个样，明天又变了。
操作起来也不算复杂，只要你稍微学一学，就能上手。
1.2 数字源表的应用领域。
从半导体研究，到电子元件的生产测试，再到电路设计，都能看到数字源表的身影。
比如说，在芯片制造中，它能精确检测芯片的电学性能，确保每个芯片都质量过硬。
二、如何使用数字源表。
这可得好好说道说道。
2.1 准备工作。
你得把数字源表连接好，电源线、测试线，一个都不能少，而且要接得稳稳当当。
然后，根据你要测的东西，设置好相应的参数，就像给它定个小目标一样。
2.2 测量操作。
接下来就是操作的时候啦。
打开电源，按下测量按钮，这时候数字源表就开始工作了，数据会在屏幕上显示出来。
记住，眼睛要盯紧，别错过了重要的数据。
2.3 数据处理。
测完了可不算完，还得处理数据。
把数据记录下来，分析分析，看看是不是符合你的预期。
要是有问题，就得找找原因，重新再来。
三、使用数字源表的注意事项。
这可不能马虎。
3.1 安全第一。
测量的时候，电压电流可别弄太高，不然会出危险，这可不是闹着玩的。
3.2 环境要求。
数字源表对环境也有要求，温度、湿度都得合适，不然会影响测量结果。
数字源表是个好东西，只要你用对了，就能帮你解决很多问题。
好好学，好好用，让它成为你的得力助手！。
by eliminating many of the complex synchronization and connection issues associated with using multiple instruments . And, their compact half-rack size conserves precious “real estate” in the test rack or bench .Power of five Instruments in one (IV source, IVr Measure)The tightly coupled nature of a SourceMeter SMU instrument provides many advantages over solu-tions configured from separate instruments, such as a precision power supply and a digital multime-five instruments in one (IV source, IVr Measure)seven models: 20–100W DC,1000W pulsed, 1100V to 1µV,10a to 10pasource and sink (4-quadrant)S M U I N S T R U M E N T Ssource I–Measure V, I, or W configurationsource V–Measure I, V, or W configurationI-V CharacteristicsAll SourceMeter SMU instruments provide four-quadrant operation . In the first and third quadrantstheyo perate as a source, delivering power to a load . In the second and fourth quadrants they oper-ate as a sink,d issipating power internally . Voltage, current, and resistance can be measured during source or sink o peration .T i g h t l y c o u p l e d p r e c i s i o n s o u r c i n g a n d m e a s u r e m e n tautomation for speedA SourceMeter SMU instrument streamlines production testing . It sources voltage or current while making measurements without needing to change connections . It is designed for reliable operation in non-stop production environments . To provide the throughput demanded by production applica-tions, the SourceMeter SMU instrument offers many built-in features that allow it to run complex test sequences without computer control or GPIB communications slowing things down .standard and Custom sweepsSweep solutions greatly accelerate testing with automation hooks . Three basic sweep waveforms are provided that can be programmed for single-event or continuous operation . They are ideal for I/V, I/R, V/I, and V/R characterization .•Linear Staircase Sweep: Moves from the start level to the stop level in equal linear steps •Logarithmic Staircase Sweep: Done on a log scale with a specified number of steps per decade•Custom Sweep: Allows construction of special sweeps by specifying the number of measurement points and the source level at each point•Up to 1700 readings/second at 4½ digits to the GPIB bus•5000 readings can be stored in the non-volatile buffer memorybuilt-In Test sequencer(source Memory list)The Source Memory list provides faster andeasier testing by allowing you to setup andexecute up to 100 different tests that run without PC intervention .•Stores up to 100 instrument configurations, each containing source settings, measurements ettings, pass/fail criteria, etc .•Pass/fail limit test as fast as 500µs per point•Onboard comparator eliminates the delay caused when sending data to the computer for analysis •Built-in, user definable math functions to calculate derived parametersTYPICal aPPlICaTIoNsDevices:•Discrete semiconductor devices •Passive devices•Transient suppression devices •ICs, rfICs, MMICs•laser diodes, laser diodemodules, lEDs, photodetectors •Circuit protection devices: TVs,MoV, fuses, etc.•airbags•Connectors, switches, relays •High brightness lEDs (DC and pulse)Tests:•leakage•low voltage/resistances •lIV •IDDQ•I-V characterization•Isolation and trace resistance •Temperature coefficient •forward voltage, reverse breakdown, leakage current •DC parametric test •DC power source •HIPoT•Photovoltaic cell efficiency (source and sink)•Dielectric withstandingS M U I N S T R U M E N T SDigital I/o InterfaceThe digital I/O interface can link a SourceMeter SMU instrument to many popular component handlers, including Aetrium, Aeco, and Robotronics . Other capabilities of the interface include:•Tight systems integration for applications such as binning and sorting •Built-in component handler interface •Start of test and end of test signals •5V, 300mA power supply• Optional expander accessory (Model 2499-DIGIO) adds 16 digital I/O linesThe digital I/O interface is available on all Series 2400 SoourceMeter instruments except the Model 2401 .Trigger link InterfaceAll SourceMeter SMU instruments include Keithley’s unique Trigger Link interface which provides high-speed, seamless communications with many of Keithley’s other instruments . For example, use the Trigger Link interface to connect a SourceMeter SMU instrument with a Series 7000 Switching System for a complete multi-point test solution . With Trigger Link, the Series 7000 Switching Systems can be controlled by a SourceMeter SMU instrument during a high-speed test sequence independent of a computer and GPIB .optional Contact Check functionThe Contact Check function makes it simple to verify good connections quickly and easily before an automated test sequence begins . This elimi-nates measurement errors and false product failures associated with con-tact fatigue, breakage, contamination, loose or broken connection, relay failures, etc . Some capabilities of this function are:•350µs verification and notification process time•The output of the SourceMeter SMU instrument is automatically shut off after a fault and is not re-activated until good contact is verified,protecting the device under test from damage and the operator frompotential safetyh azards .•3 pass/fail threshold values: 2W , 15W , and 50W•No energy passes through the device under test during the operation .•Enabled either from the front panel or remotely over the GPIB •3 fault notification methodsunique 6-Wire ohms TechniqueSourceMeter SMU instruments can make standard 4-wire, split Kelvin, and 6-wire, guarded ohms measurements and can be configured for either the constant current or constant voltage method . The 6-wire ohms technique:•Uses guard and guard sense leads in addition to the 4-wire sense and source leads .•Locks out parallel current paths when measuring resistor networks or hybrid c ircuits to isolate the component under test .•Allows users to configure and plot data easily from Series 2400SourceMeter SMU instruments, making characterization of two, three,and four terminal devices a snap .Contact check option for 4-wire or 6-wire applications free labTracer 2.0 device characterization software (downloadable)6-Wire ohms Circuit. all test current flows through r1 because the high current guard drives the voltage across r2 to 0V.T i g h t l y c o u p l e d p r e c i s i o n s o u r c i nTEMPERATURE COEFFICIENT (0°–18°C and 28°–50°C): ±(0 .15 × accuracy specification)/°C .aDDITIoNal PulsE MoDE sourCE sPECIfICaTIoNs (2430 and 2430-C only)MAXIMUM DUTy CyCLE: 8%, hardware limited, 10A range only . All other ranges 100% .MAXIMUM PULSE WIDTH: 5ms from 90% rising to 90% falling edge, 2 .5ms 10A range .MINIMUM PULSE WIDTH: 150µs .MINIMUM PULSE RESOLUTION: 50µs typical, 70µs max ., limited by system j itter .SOURCE ACCURACy: Determined by settling time and source range specifications .OUTPUT SETTLING TIME 0.1%:800µs typ ., source I = 10A into 10W , limited by voltage slew rate . 500µs typ ., source I = 10A into 1W , limited by voltage slew rate .OUTPUT SLEW RATE:Voltage (10W load): 0 .25V/µs ±30% on 100V range . 0 .08V/µs ±30% on 20V range, 10A range . Current (0W load): 0 .25A/µs ±30% on 100V range . 0 .08A/µs ±30% on 20V range, 10A range .NoTEs1 . 2400, 2401, 2410 Only: Specifications valid for continuous output currents below 105mA . For operation above 105mA continuous for >1 minute, derate accuracy 10%/35mA above 105mA .2 . Speed = Normal (1 PLC) . For 0 .1 PLC, add 0 .005% of range to offset specifications, except 200mV, 1A, 10Aranges, add 0 .05% . For 0 .01 PLC, add 0 .05% of range to offset specifications, except 200mV, 1A, 10A ranges, add 0 .5% .3 . Accuracies apply to 2- or 4-wire mode when properly zeroed .4 . In pulse mode, limited to 0 .1 PLC measurement .2400S M U I N S T R U M E N T STEMPERATURE COEFFICIENT (0°–18°C and 28°–50°C): ±(0 .15 × accuracy specification)/°C .CURRENT REGULATION: Line: 0 .01% of range . Load: 0 .01% of range (except Model 2440 5A range 0 .05%) + 100pA .VOLTAGE LIMIT: Bipolar voltage limit (compliance) set with single value . Min . 0 .1% of range .OVERSHOOT: <0 .1% typical (1mA step, RL = 10k W , 20V range for Model 2400, 2401, 2410, 2420, 2425, 2430), (10V range for Model 2440) .CoNTaCT CHECK sPECIfICaTIoNs (requires -C version)(Not available for Model 2401)SPEED: 350µs for verification and notification .CONTACT CHECK: 2 W 15 W 50 W No contact check failure <1 .00 W <13 .5 W <47 .5 W Always contact check failure >3 .00 W >16 .5 W >52 .5 WNoTEs1 . 2400, 2401, 2410 Only: Specifications valid for continuous output currents below 105mA . For operation above 105mA continuous for >1 minute, derate accuracy 10%/35mA above 105mA .2 . Full operation (1A) regardless of load to 30°C (50°C for Model 2420 and 2440) . Above 30°C (50°C for Model 2420 and 2440) ambient, derate 35mA/°C and prorate 35mA/W load . 4-wire mode . For current sink operation on 1A, 3A, or 5A ranges, maximum continuous power is limited to approximately 1/2 rated power or less, depending on current, up to 30°C ambient . See power equations in the User’s Manual to calculate allowable duty cycle for specific conditions .3 . For sink mode, 1µA to 100mA range, accuracy is:Model 2400, 2401: ±(0 .15% + offset*4) . Models 2410, 2420, 2425, 2430, 2440: ±(0 .5% + offset*3) .For 1A range, accuracy is:Model 2400, 2401: ±(1 .5% + offset*8) . Models 2410, 2420, 2425, 2430, 2440: ±(1 .5% + offset*3) .4 . 10A range only in pulse mode . Limited to 2 .5ms pulse width maximum . 10% duty cycle maximum .5 . Speed = Normal (1 PLC) . For 0 .1 PLC, add 0 .005% of range to offset specifications, except 200mV, 1A, 10A ranges, add 0 .05% . For 0 .01 PLC, add 0 .05% of range to offset specifications, except 200mV, 1A, 10A ranges, add 0 .5% .6 . Accuracies apply to 2- or 4-wire mode when properly zeroed .7 . In pulse mode, limited to 0 .1 PLC measurement .8 . Model 2400 and 2400-C only .S e r i e s 2400 c o n d e n s e d s p e c i f i c a t i o n sNoTEs1 . Speed = Normal (1 PLC) . For 0 .1 PLC, add 0 .005% of range to offset specifications, except 200mV, 1A, 10A ranges, add 0 .05% . For 0 .01 PLC, add 0 .05% of range to offset specifications, except 200mV, 1A, 10A ranges, add 0 .5% .2 . Accuracies apply to 2- or 4-wire mode when properly zeroed .3 . Manual ohms only – except 2420, 2425, 2430, 2440 for 2W range and 2400, 2401, or 2410 for 200M W range .4 . Source readback enabled, offset compensation ON . Also available on 2410, 2420, 2425, 2430, and 2440 with similar a ccuracy enhancement .5 . In pulse mode, limited to 0 .1 PLC measurement .6 . Except 2440; default test current is 5µA .7 . Except 2440; default test current is 0 .5µA .TEMPERATURE COEFFICIENT (0°–18°C and 28°–50°C): ±(0 .15 × accuracy specification)/°C .SOURCE I MODE, MANUAL OHMS: Total uncertainty = I source accuracy + V meas-ure accuracy (4-wire remote sense) .SOURCE V MODE, MANUAL OHMS: Total uncertainty = V source a ccuracy + I meas-ure accuracy (4-wire remote sense) .6-WIRE OHMS MODE: Available using active ohms guard and guard sense . Max . Guard Output Current: 50mA (except 1A range) . Accuracy is load dependent . Refer to White Paper no . 2033 for calculation f ormula .GUARD OUTPUT IMPEDANCE: <0 .1W in ohms mode .sErVICEs aVaIlablE2400-3Y-EW 1-year factory warranty extended to 3 years from date of shipment 2400-C-3Y-EW 1-year factory warranty extended to 3 years from date of shipment2401-3Y-EW1-year factory warranty extended to 3 years from date of shipment 2410-3Y-EW 1-year factory warranty extended to 3 years from date of shipment 2410-C-3Y-EW 1-year factory warranty extended to 3 years from date of shipment2420-3Y-EW1-year factory warranty extended to 3 years from date of shipment 2420-C-3Y-EW 1-year factory warranty extended to 3 years from date of shipment 2425-3Y-EW 1-year factory warranty extended to 3 years from date of shipment 2425-C-3Y-EW 1-year factory warranty extended to 3 years from date of shipment 2430-3Y-EW 1-year factory warranty extended to 3 years from date of shipment 2430-C-3Y-EW 1-year factory warranty extended to 3 years from date of shipment2440-3Y-EW1-year factory warranty extended to 3 years from date of shipment 2440-C-3Y-EW 1-year factory warranty extended to 3 years from date of shipmentC/2400-3Y-ISO 3 (ISO-17025 accredited) calibrations within 3 years of purchase for Models 2400, 2400-C, 2400-LV*C/2401-3Y-ISO 3 (ISO-17025 accredited) calibrations within 3 years of purchase for Model 2401*C/2410-3Y-ISO 3 (ISO-17025 accredited) calibrations within 3 years of purchase for Models 2410, 2410-C*C/2420-3Y-ISO 3 (ISO-17025 accredited) calibrations within 3 years of purchase for Models 2420, 2420-C*C/2425-3Y-ISO 3 (ISO-17025 accredited) calibrations within 3 years of purchase for Models 2425, 2425-C*C/2430-3Y-ISO 3 (ISO-17025 accredited) calibrations within 3 years of purchase for Models 2430, 2430-C*C/2440-3Y-ISO 3 (ISO-17025 accredited) calibrations within 3 years of purchase for Models 2440, 2440-C*TRN-2400-1-C Course: Unleashing the Power of Your SourceMeter SMU Instrument *Not available in all countries2400S M U I N S T R U M E N T Ssystem speedsMEasurEMENT 1MAXIMUM RANGE CHANGE RATE: 75/second .MAXIMUM MEASURE AUTORANGE TIME: 40ms (fixed source) .2sweep operation 3 reading rates (rdg./second) for 60Hz (50Hz):Measuresource-Measuresource-Measure 5Pass/fail Test 4, 5source-Memory 4speed NPlC/Trigger originTo Mem.To GPIb To Mem.To GPIb To Mem.To GPIb To Mem.To GPIb Fast0 .01 / internal 2081(2030)17541551(1515)1369902(900)981165(162)165single reading operation reading rates (rdg./second) for 60Hz (50Hz):speedNPlC/Trigger originMeasure To GPIb source-Measure 5To GPIb source-Measure Pass/fail Test 4,5To GPIb Fast (488.1)0 .01 / internal 537140135Component for 60Hz (50Hz):4, 6speed NPlC/Trigger originMeasure To GPIb source Pass/fail Testsource-Measure Pass/fail Test 5, 7To GPIb Fast 0 .01 / external 1 .04 ms (1 .08 ms)0 .5 ms (0 .5 ms) 4 .82 ms (5 .3 ms)Medium 0 .10 / external 2 .55 ms (2 .9 ms)0 .5 ms (0 .5 ms) 6 .27 ms (7 .1 ms)Normal 1 .00 / external 17 .53 ms (20 .9 ms)0 .5 ms (0 .5 ms)21 .31 ms (25 .0 ms)1Reading rates applicable for voltage or current measurements . Auto zero off, autorange off, filter off, display off, trigger delay = 0, and binary reading format .2 Purely resistive lead . 1µA and 10µA ranges <65ms .3 1000 point sweep was characterized with the source on a fixed range .4 Pass/Fail test performed using one high limit and one low math limit .5Includes time to re-program source to a new level before making m easurement .6 Time from falling edge of START OF TEST signal to falling edge of END OF TEST signal .7 Command processing time of :SOURce:VOLTage|CURRent:TRIGgered <nrf> command not included .NoTEsS e r i e s 2400 c o n d e n s e d s p e c i f i c a t。
Precise S型数字源表，与万用表，电压源、电流源、电流表、电压表和电子负载组合仪器相比，有哪些优点？
①源表，SMU(Source Measure Unit)电源/测量单元；
②源表突出特点：使用一台仪器进行多种测量；
③SMU是可以当电源,万用表或电源/测量组合，当电源时可作为可编程电压源或可编程电流源；
④当万用表时可作为数字电压表(电流源,输出电流为0,测电压)或数字电流表(电压源,输出电压为0,测电流)或数字欧姆表(电流源,输出电流为一定值,测电压)；
⑤当电子负载时可作为可编程恒压负载或可编程恒流负载；
⑥当电源/测量表组合（SMU）时给电压测量电流或给电流测量电压；
⑦与传统电源比，电源过零时需要改变线连接方式，增加需要反复切换的机械开关，降低了设备可靠性；电源电压电流限制精度有限，电压1%，电流10mA；
⑧与电源结合万用表组合比，万用表电源组合需要编程实现设备控制及同步，复杂连线且要编程开发；电源限压限流性能差，限压限流精度低，瞬态特性也无法保证；。
计量测试I水香芝：数字源表示值误差校准方法数字源表示值误差校准方法水香芝（阜新市计量检定测试所，辽宁阜新123100）【摘要】计量校准是保证测量设备准确可靠的有效手段，数字源表示值误差的校准方法对数字源表的准确度提升显得越来越重要，本文用几种方法和公式相结合，有效的解决数字源表示值误差问题。
【关键词】数字源表;示值误差;直接比较法;间接比较法【DOI编码】10.3969/j.issn.1674-4977.2020.01.003Calibration Method of Digital Source Indication ErrorSHUI Xiang-zhi(Fuxin Meter Check and Measure Station,Fuxin123100,China)Abstract:Measurement calibration is an effective means to ensure the accuracy and reliability of measurement equipment.The calibration method of digital source indication value error is becoming more and more important for the accuracy improvement of digital source meter.In this paper,several methods and formulas are combined to effectively solve the problem of digital source indication error.Key words:digital source table；indication error；direct comparison method；indirect comparison method数字源表是一种多功能电学计量器具，综合直流电源和数字多用表的功能，能输出直流电压、电流，能测量直流电压、电流和电阻。
S M U 仪器具备分析仪、曲线追踪仪和I-V 系统功能，成本更低 5英寸高分辨率电容触摸屏图形用户界面（GUI ）基本测量准确度0.012%，分辨率6½数位2450型触摸屏数字源表是吉时利新一代数字源表(SMU)仪器，它真正把欧姆定律(电流、电压和电阻)测试带到你的指尖。
其创新的图表化用户界面(GUI)和先进的电容触摸屏技术，实现了直观使用和学习曲线简便化，支持工程师和科学家掌握更迅速、工作更便捷、发明更简单。
2450是适用于各行各业使用者的源测量单元(SMU)：这种多用途仪器特别适合现代半导体、纳米器件和材料、有机半导体、印刷电子技术以及其他小尺寸、低功率器件特性分析。
这些特性加上吉时利源测量单元(SMU)的精度和准确度，允许用户触摸、测试和发明，无论现在和未来，都将成为您实验室中爱不释手的仪器。
学习更迅速、工作更灵巧和发明更容易同采用专用按钮和小型、昏暗、字母数位有限显示屏的传统仪器相比，2450仪表采用5英寸全彩色高分辨率触摸屏界面，易于使用、学习和优化整体速度和效率。
简洁的图标化菜单结构能够减少近50%的设置步骤，替代了繁琐的传统按键式、多层次的菜单结构。
内建图标化的帮助功能支持直观操作，把手动翻页需求降到最低。
这些能力加上其多用途应用，2450型仪器具有天生的易用性，适用于基础与先进测量应用，不论您使用源测量单元（SMU ）仪器的经验如何。
2450仪器菜单(SMU)仪器型数字源表源测量单6½数位2450仪表功率包络2450型触摸屏数字源表USB 2.0存储器I/O前/后面板旋转指引/控制按钮5˝彩色图形触摸屏显示屏除了触摸屏以外，易于使用除了5英寸彩色触摸屏，2450型仪器还具有许多特性，可以增强其速度、用户友好和学习能力，包括USB 2.0存储器I/O 端口、HELP 按键、旋转指引/控制按钮、前/后面板输入选择按钮，以及适合基本测试台应用的香蕉插孔。
USB 2.0存储器端口支持便利的数据存储、保存仪器配置、装载测试脚本及系统升级。
