是测量电路中电流大小的工具。
吉时利6487型皮安表，除包含6485的所有功能外，增加了500V的电压源以适用高电阻和电阻率测量。它比6485有更高的精度和更快的上升时间，也有阻尼功能用于电容器件的漏电测试等。这款高性价比仪器具有八个电流测量量程和高速自动量程，可测量的电流从20fA到20mA，按照每秒 zui 多1000个读数的速度进行测量，电压源从200μV到505V。 
主要特性
10fA 分辨率
5位半读数
输入端压降<200μV
交互式电压方法测量电阻
自动电压扫描，用于I-V特性分析
浮地测量到500V
速度可达1000 个读数/秒
内置486，487仿真命令
IEEE-488 和RS-232 接口
模拟输出
程序示例
TestPoint Example for Ohms Measurement with 487 or 6487 in DDCMode (Keithley GPIB card required)
TestPoint Example for 487 or 6487 in DDC Mode (Keithley GPIBcard required)
LV6 Example to Control Zero Check State and Measure Current with6485/6487/6514; Uses IVI Driver
Are there any example programs for the IVI driver?
Visual Basic (VB) .NET Example for SCPI Communication to anInstrument over RS-232
VB6 Example for RS-232 Communication with an Instrument (usesMSCOMM ActiveX)
固件
6487 A06 Firmware Upgrade
Flashwizard version C12 (Windows 7, Vista, XP, Win2K, NT, ME, 98Compatible)
软件
ExceLINX for Models 6485, 6487, and 6514 Version C03 (Win-98,Win-NT, and Win-ME only)
ExceLINX for Models 6485, 6487, and 6514 Release Notes for Ver.C03
软件驱动
Models 6485, 6487, 6514 Driver Release Notes for Ver. B04 -Requires Installation of Keithley I/O Layer (KIOL-850)
Models 6485, 6487, and 6514 IVI/VISA-based Driver for VisualBasic (VB), VC/C++, LabView (LV) & LabWindowsCVI (v5.5) Ver.B04 -Requires Installation of Keithley I/O Layer (KIOL-850)
Release Notes for Keithley I/O Layer version C04 (Windows 7,Vista, XP and Win2K Compatible)
Keithley I/O Layer version C04 (Windows 7, Vista, XP and Win2KCompatible)