From efd3d1ff5f50b9a4d8214fbcc80d8cc6ba0c96e4 Mon Sep 17 00:00:00 2001
From: "Geels, Brendan Ryan" <bgeels@usgs.gov>
Date: Fri, 18 Aug 2023 13:04:08 -0600
Subject: [PATCH] Add FGE metadata for FRD
---
geomagio/Metadata.py | 34 +++++++++++++++++++++-------------
1 file changed, 21 insertions(+), 13 deletions(-)
diff --git a/geomagio/Metadata.py b/geomagio/Metadata.py
index 7f3b3cca..4cdf471a 100644
--- a/geomagio/Metadata.py
+++ b/geomagio/Metadata.py
@@ -283,20 +283,28 @@ _INSTRUMENT_METADATA = [
"start_time": None,
"end_time": None,
"instrument": {
- "type": "Narod",
+ "type": "FGE",
"channels": {
- "U": [
- {"channel": "U_Volt", "offset": 0, "scale": 100},
- {"channel": "U_Bin", "offset": 0, "scale": 500},
- ],
- "V": [
- {"channel": "V_Volt", "offset": 0, "scale": 100},
- {"channel": "V_Bin", "offset": 0, "scale": 500},
- ],
- "W": [
- {"channel": "W_Volt", "offset": 0, "scale": 100},
- {"channel": "W_Bin", "offset": 0, "scale": 500},
- ],
+ # each channel maps to a list of components to calculate nT
+ # TODO: calculate these lists based on "FGE" type
+ "U": [{"channel": "U_Volt", "offset": 21690, "scale": 978.4}],
+ "V": [{"channel": "V_Volt", "offset": 0, "scale": 971.0}],
+ "W": [{"channel": "W_Volt", "offset": 45532, "scale": 966.7}],
+ },
+ "electronics": {
+ "serial": "E570",
+ # these scale values are used to convert voltage
+ "x-scale": 978.4, # nT/V
+ "y-scale": 971.0, # nT/V
+ "z-scale": 966.7, # nT/V
+ "temperature-scale": 0.01, # V/K
+ },
+ "sensor": {
+ "serial": "S0445",
+ # these constants combine with instrument setting for offset
+ "x-constant": 37474, # nT/mA
+ "y-constant": 37191, # nT/mA
+ "z-constant": 37025, # nT/mA
},
},
},
--
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