from typing import Optional
from ..visa import VisaDevice
from .. import is_mock_enabled
class K34411A(VisaDevice):
"""
Keysight 6½ Digit Digital Multimeter 34411A
"""
_idn_pattern = "34411A"
_option_nplc = ["0.001", "0.002", "0.006", "0.02", "0.06", "0.2", "1", "2", "10", "100"]
_option_r_range = ["auto", "1E+2", "1E+3", "1E+4", "1E+5", "1E+6", "1E+7", "1E+8", "1E+9"]
_option_v_range = ["auto", "1E-1", "1E+0", "1E+1", "1E+2", "1E+3"]
def _initialize(self, **kwargs):
self.visa_write("*RST;*CLS")
self.visa_write("RES:RANG:AUTO ON")
self.visa_write("TRIG:SOUR BUS")
def measure_resistance(self, *, nplc: Optional[str]=None, range: str="auto"):
"""
Measure resistance once
Args:
nplc (Optional[str]): String from
{"0.001", "0.002", "0.006", "0.02", "0.06", "0.2", "1", "2", "10", "100"}
range (Optional[str]): String from
{"auto", "1E+2", "1E+3", "1E+4", "1E+5", "1E+6", "1E+7", "1E+8", "1E+9"}
"""
# validate input
if nplc and nplc not in self._option_nplc:
raise ValueError(f"NPLC value \"{nplc}\" is invalid.")
if range not in self._option_r_range:
raise ValueError(f"Range value \"{range}\" is invalid.")
self.visa_write("CONF:RES")
if nplc:
self.visa_write(f"RES:NPLC {nplc}")
if range == "auto":
self.visa_write("RES:RANG:AUTO ON")
else:
self.visa_write(f"RES:RANG {range}")
val = self.visa_query("READ?")
return float(val)
def measure_voltage(self, *, nplc: Optional[str]=None, range: str = "auto"):
"""
Measure resistance once
Args:
nplc (Optional[str]): String from
{"0.001", "0.002", "0.006", "0.02", "0.06", "0.2", "1", "2", "10", "100"}
range (Optional[str]): String from
{"auto", "1E-1", "1E+0", "1E+1", "1E+2", "1E+3"}
"""
# validate input
if nplc and nplc not in self._option_nplc:
raise ValueError(f"NPLC value \"{nplc}\" is invalid.")
if range not in self._option_v_range:
raise ValueError(f"Range value \"{range}\" is invalid.")
self.visa_write("CONF:VOLT")
if nplc:
self.visa_write(f"VOLT:NPLC {nplc}")
if range == "auto":
self.visa_write("VOLT:RANG:AUTO ON")
else:
self.visa_write(f"VOLT:RANG {range}")
val = self.visa_query("READ?")
return float(val)
if is_mock_enabled:
from time import sleep
from random import random
[ドキュメント] class K34411A:
[ドキュメント] def measure_resistance(self, *, nplc: Optional[str]=None, range: str="auto"):
sleep(0.4)
return random() * 1e3
[ドキュメント] def measure_voltage(self, *, nplc: Optional[str]=None, range: str = "auto"):
sleep(0.4)
return random() * 10