야옹고양이 (cybercat) = ^.^ =

2015년 11월 11일 수요일

Fast-Change Measurement Experiment

-. Instrument : Keithley 26xx(A,B) SYSTEM SourceMeter
-. DUT (Device Under Test) : 1.25 Ohm Resistor (2W)
-. Force the Current Source 1A -> 0A (total 10,000 Points Measurement, Voltage & Current Measurement)
-. 5,000 Points (1A), 5,000 Points (0A)

2015년 11월 10일 화요일

Simple Thermo-electric Material Resistance Measurement Software

* Simple Thermo-electric Material Resistance Measurement Software

-. Instrument : Keithley Model 24xx SourceMeter
-. Communication Iterface : GPIB/RS-232(c)
-. Current Source Waveform : Square
-. Frequency Control Enable (Max. 25 Hz)
-. Real Measurement (Current & Voltage)

2015년 11월 9일 월요일

Simple Example RS-232(c) Code for Lua (MAC)

* Simple Exmaple Code RS-232(c) for Lua (MAC)

wserial = io.open("/dev/cu.usbserial-FTGGOX8Z","w")

rserial = io.open("/dev/cu.usbserial-FTGGOX8Z","r")

rserial:setvbuf("line",100)

COMMAND = "*RST\n"

wserial:write(COMMAND)

COMMAND = "*IDN?\n"

wserial:write(COMMAND)

data = rserial:read()

print(data)

rserial:flush()

COMMAND = ":SYST:CLE\n"

wserial:write(COMMAND)

COMMAND = ":SYST:ERR?\n"

wserial:write(COMMAND)

data = rserial:read()

print(data)

rserial:flush()

COMMAND = ":SYST:ZCHK OFF\n"

wserial:write(COMMAND)

COMMAND = ":OUTP ON\n"

wserial:write(COMMAND)

for i = 1, 10 do

  COMMAND = ":READ?\n"

  wserial:write(COMMAND)

  data = rserial:read()

  print(data)

  rserial:flush()

end

rserial:close()

COMMAND = ":SYST:ZCHK ON\n"

wserial:write(COMMAND)

COMMAND = ":OUTP OFF\n"

wserial:write(COMMAND)

wserial:close()

2015년 11월 8일 일요일

Damped Cosine Waveform (Current Source)

-. Instrument : Keithley 2612B SYSTEM SourceMeter (Channel A)

2015년 11월 5일 목요일

4-Channel Voltage Pulse Synchronization

-. Instrument : Keithley 2636B SYSTEM SourceMeter (2 ea, 4-Channel)
-. TSPLINK Trigger Synchronization Method
-. Pulse Amplitude (1 V), Pulse Width (100 usec), Duty (50 %)