linse/frappy
0
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

ionopimax: Add LogVoltageInput

Browse Source
This commit is contained in:
l_samenv
2024-01-18 08:40:33 +01:00
parent 9e000528d2
commit 99a58933ec
1 changed files with 10 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

10
frappy_psi/ionopimax.py
View File

@ -20,6 +20,7 @@
from frappy.core import Readable, Writable, Parameter, BoolType, StringType,\ from frappy.core import Readable, Writable, Parameter, BoolType, StringType,\
FloatRange, Property, TupleOf, ERROR, IDLE FloatRange, Property, TupleOf, ERROR, IDLE
from math import log
class Base: class Base:
@ -73,6 +74,15 @@ class VoltageInput(AnalogInput):
def initModule(self): def initModule(self):
super().initModule() super().initModule()
self.write(f'{self.addr}_mode','U') self.write(f'{self.addr}_mode','U')
class LogVoltageInput(VoltageInput):
def read_value(self):
x0, x1 = self.rawrange
y0, y1 = self.valuerange
self.x = self.read(self.addr, self.scale)
a = (x1-x0)/log(y1/y0,10)
return 10**((self.x-x1)/a)*y1
class CurrentInput(AnalogInput): class CurrentInput(AnalogInput):