From adfaf89bb40cb4ad639e20f41b4e91c2fafc3042 Mon Sep 17 00:00:00 2001
From: "Geels, Brendan Ryan" <bgeels@usgs.gov>
Date: Tue, 27 Jun 2023 15:21:36 -0600
Subject: [PATCH] shu fge scaling factors added
---
geomagio/Metadata.py | 61 ++++++++++++++++++++++++++++++++++----------
1 file changed, 47 insertions(+), 14 deletions(-)
diff --git a/geomagio/Metadata.py b/geomagio/Metadata.py
index cc78c445..34bba5f5 100644
--- a/geomagio/Metadata.py
+++ b/geomagio/Metadata.py
@@ -483,23 +483,33 @@ _INSTRUMENT_METADATA = [
{
"network": "NT",
"station": "SHU",
- "start_time": None,
+ "start_time": "2023-06-28T00:00:00.000Z",
"end_time": None,
"instrument": {
- "type": "Narod",
+ "type": "FGE",
"channels": {
- "U": [
- {"channel": "U_Volt", "offset": 0, "scale": 100},
- {"channel": "U_Bin", "offset": 0, "scale": 505},
- ],
- "V": [
- {"channel": "V_Volt", "offset": 0, "scale": 100},
- {"channel": "V_Bin", "offset": 0, "scale": 505},
- ],
- "W": [
- {"channel": "W_Volt", "offset": 0, "scale": 100},
- {"channel": "W_Bin", "offset": 0, "scale": 505},
- ],
+ # each channel maps to a list of components to calculate nT
+ # TODO: calculate these lists based on "FGE" type
+ "U": [{"channel": "U_Volt", "offset": 0, "scale": 944.935}],
+ "V": [{"channel": "V_Volt", "offset": 0, "scale": 964.909}],
+ "W": [{"channel": "W_Volt", "offset": 0, "scale": 954.433}],
+ },
+ # this info should get updated when available
+ "electronics": {
+ "serial": "E558",
+ # these scale values are used to convert voltage
+ # these are calculated using Ohm's law, given scaling resistor value (38.3 kohm), and given nT/mA values.
+ "x-scale": 944.935, # nT/V
+ "y-scale": 964.909, # nT/V
+ "z-scale": 954.433, # nT/V
+ "temperature-scale": 0.01, # V/K
+ },
+ "sensor": {
+ "serial": "S0441",
+ # these constants combine with instrument setting for offset
+ "x-constant": 36191, # nT/mA
+ "y-constant": 36956, # nT/mA
+ "z-constant": 37032, # nT/mA
},
},
},
@@ -670,4 +680,27 @@ _INSTRUMENT_METADATA = [
# },
# },
# },
+ # {
+ # "network": "NT",
+ # "station": "SHU",
+ # "start_time": None,
+ # "end_time": "2023-06-28T00:00:00.000Z",
+ # "instrument": {
+ # "type": "Narod",
+ # "channels": {
+ # "U": [
+ # {"channel": "U_Volt", "offset": 0, "scale": 100},
+ # {"channel": "U_Bin", "offset": 0, "scale": 505},
+ # ],
+ # "V": [
+ # {"channel": "V_Volt", "offset": 0, "scale": 100},
+ # {"channel": "V_Bin", "offset": 0, "scale": 505},
+ # ],
+ # "W": [
+ # {"channel": "W_Volt", "offset": 0, "scale": 100},
+ # {"channel": "W_Bin", "offset": 0, "scale": 505},
+ # ],
+ # },
+ # },
+ # },
]
--
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