From d95fd50f78dd923ba6d64c6a3cd8cf308c37e6ec Mon Sep 17 00:00:00 2001
From: Clement Remi <remi.clement@irstea.fr>
Date: Thu, 3 Dec 2020 21:26:41 +0100
Subject: [PATCH] adding auto gain function, to optimise I and Vmn measures
---
Ohmpi.py | 13 +++++++++++++
1 file changed, 13 insertions(+)
diff --git a/Ohmpi.py b/Ohmpi.py
index f3bab989..bc38c981 100644
--- a/Ohmpi.py
+++ b/Ohmpi.py
@@ -89,6 +89,19 @@ def read_quad(filename, nb_elec):
else:
return output
+def gain_auto(channel):
+ gain=2/3
+ if ((abs(channel.voltage)<2.040) and (abs(channel.voltage)>=1.023)):
+ gain=2
+ elif ((abs(channel.voltage)<1.023) and (abs(channel.voltage)>=0.508)):
+ gain=4
+ elif ((abs(channel.voltage)<0.508) and (abs(channel.voltage)>=0.250)):
+ gain=8
+ elif abs(channel.voltage)<0.256:
+ gain=16
+ #print(gain)
+ return gain
+
# perform a measurement
def run_measurement(nb_stack, injection_deltat, Rref, coefp0, coefp1, coefp2, coefp3, elec_array):
i2c = busio.I2C(board.SCL, board.SDA) # I2C protocol setup
--
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