From e0d27d0f9845cebc6235ebefa3505a02c3e94ee9 Mon Sep 17 00:00:00 2001
From: "Eugeniy E. Mikhailov" <evgmik@gmail.com>
Date: Tue, 4 Jan 2022 00:16:15 -0500
Subject: added ability to record magnetometer noise

---
 examples/lock_eit.py | 35 ++++++++++++++++++++++++++++++++++-
 1 file changed, 34 insertions(+), 1 deletion(-)

diff --git a/examples/lock_eit.py b/examples/lock_eit.py
index a20d984..8129afc 100644
--- a/examples/lock_eit.py
+++ b/examples/lock_eit.py
@@ -217,6 +217,30 @@ async def responseToChangeOfBfieldControlVoltage(apparatus, extra_tags={}):
 
     return float(slope)
 
+async def record_magnetometer_noise(apparatus):
+    ai = apparatus.instruments
+    rfPout = apparatus.getRFAmplitude()
+    apparatus.state = f'Record magnetometer noise,  RF power {rfPout} dBm'
+    logger.info(apparatus.state)
+
+    scope = ai['scope.monitor']
+    old_config = scope.getConfig()
+    tperdiv=1
+    scope.setTimePerDiv(tperdiv)
+    scope.setRoll(True)
+
+    await asyncio.sleep(tperdiv*14 + 1)
+    errorTr=scope.getTrace(1)
+    errorTr.config['label'] = 'error'
+    log = errorTr
+    log.config['tags']['apparatus']=getConfig(apparatus)
+
+    apparatus.gui_log.setTraces( log )
+    update_webpage(apparatus=apparatus)
+
+    logger.info('Restoring scope settings')
+    scope.setConfig(old_config)
+
 async def longTermLock(apparatus, extra_tags={}):
     ai = apparatus.instruments
     rfPout = apparatus.getRFAmplitude()
@@ -336,6 +360,15 @@ async def main():
 
     await initial_lock_to_eit(apparatus, extra_tags=extra_tags)
 
+    await record_magnetometer_noise(apparatus)
+
+    apparatus.gui_log.stop_tasks()
+    task_wp_update_loop.cancel()
+    logger.info("exiting main loop")
+    update_webpage(apparatus=apparatus)
+    return(apparatus)
+
+
     lockin_slope= await calibratingLockin(apparatus, extra_tags=extra_tags)
     ai['error_signal_response_to_eit_detuning'].conversion_factor = lockin_slope
     instruments_config.container = getConfig(apparatus)
@@ -457,7 +490,7 @@ if __name__ == '__main__':
     apparatus = Apparatus(tsdb_ingester=tsdb_ingester, device_nickname='magnetometer',)
     apparatus.config['Device type'] = 'QOL VAMPIRE HighPower magnetometer'
     apparatus.config['Device model'] = 'v0.1'
-    apparatus.config['FnamePrefix'] = 'locked_magnetometer'
+    apparatus.config['FnamePrefix'] = 'magnetometer'
     apparatus.config['SavePath'] = '/mnt/qol_grp_data/data.VAMPIRE.HighPower'
     # apparatus.config['SavePath'] = './data'
 
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