From fe2026b32085fb017492dc00773bd5e7b843adbe Mon Sep 17 00:00:00 2001
From: Clement Remi <remi.clement@irstea.fr>
Date: Thu, 2 Feb 2023 20:50:01 +0100
Subject: [PATCH] Update new strategy for Vmax
---
ohmpi.py | 15 +++++++++++++--
1 file changed, 13 insertions(+), 2 deletions(-)
diff --git a/ohmpi.py b/ohmpi.py
index 8a421930..3f13dd1f 100644
--- a/ohmpi.py
+++ b/ohmpi.py
@@ -283,12 +283,12 @@ class OhmPi(object):
voltage_max = 4500.
current_min = voltage_min / (self.r_shunt * 50) # mA
current_max = voltage_max / (self.r_shunt * 50)
- tx_max = 40. # volt
+ tx_max = 50. # volt
# check of volt
volt = tx_volt
if volt > tx_max:
- self.exec_logger.warning('Sorry, cannot inject more than 40 V, set it back to 5 V')
+ self.exec_logger.warning('Sorry, cannot inject more than 50 V, set it back to 5 V')
volt = 5.
# redefined the pin of the mcp (needed when relays are connected)
@@ -346,6 +346,17 @@ class OhmPi(object):
self.exec_logger.debug(f'Rab = {Rab:.2f} Ohms')
# implement different strategy
+ if strategy == 'vmax_rc':
+ factor_I = current_max / I
+ factor_vmn = voltage_max / Vmn
+ factor= factor_I
+ if factor_I > factor_vmn:
+ factor = factor_vmn
+ Vab = factor * tx_volt
+ if Vab > tx_max:
+ Vab=tx_max
+
+
if strategy == 'vmax':
vmn_max = c * current_max
if voltage_max > vmn_max > voltage_min:
--
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