3.3.1.48. NXsensor¶
Status:
base class, extends NXobject
Description:
A sensor used to monitor an external condition
The condition itself is described in NXenvironment.
Symbols:
No symbol table
- Groups cited:
Structure:
@default: (optional) NX_CHAR
Declares which child group contains a path leading to a NXdata group.
It is recommended (as of NIAC2014) to use this attribute to help define the path to the default dataset to be plotted. See https://www.nexusformat.org/2014_How_to_find_default_data.html for a summary of the discussion.
model: (optional) NX_CHAR
Sensor identification code/model number
name: (optional) NX_CHAR
Name for the sensor
short_name: (optional) NX_CHAR
Short name of sensor used e.g. on monitor display program
attached_to: (optional) NX_CHAR
where sensor is attached to (“sample” | “can”)
measurement: (optional) NX_CHAR
name for measured signal
Any of these values:
temperature
pH
magnetic_field
electric_field
conductivity
resistance
voltage
pressure
flow
stress
strain
shear
surface_pressuretype: (optional) NX_CHAR
The type of hardware used for the measurement. Examples (suggestions but not restrictions):
- Temperature
J | K | T | E | R | S | Pt100 | Rh/Fe
- pH
Hg/Hg2Cl2 | Ag/AgCl | ISFET
- Ion selective electrode
specify species; e.g. Ca2+
- Magnetic field
Hall
- Surface pressure
wilhelmy plate
run_control: (optional) NX_BOOLEAN
Is data collection controlled or synchronised to this quantity: 1=no, 0=to “value”, 1=to “value_deriv1”, etc.
high_trip_value: (optional) NX_FLOAT {units=NX_ANY}
Upper control bound of sensor reading if using run_control
low_trip_value: (optional) NX_FLOAT {units=NX_ANY}
Lower control bound of sensor reading if using run_control
value[n]: (optional) NX_FLOAT {units=NX_ANY}
nominal setpoint or average value - need [n] as may be a vector
value_deriv1[ref(value)]: (optional) NX_FLOAT {units=NX_ANY}
Nominal/average first derivative of value e.g. strain rate - same dimensions as “value” (may be a vector)
value_deriv2[ref(value)]: (optional) NX_FLOAT {units=NX_ANY}
Nominal/average second derivative of value - same dimensions as “value” (may be a vector)
external_field_brief: (optional) NX_CHAR
Any of these values:
along beam
across beam
transverse
solenoidal
flow shear gradient
flow vorticitygeometry: (optional) NXgeometry
Defines the axes for logged vector quantities if they are not the global instrument axes
value_log: (optional) NXlog
Time history of sensor readings
value_deriv1_log: (optional) NXlog
Time history of first derivative of sensor readings
value_deriv2_log: (optional) NXlog
Time history of second derivative of sensor readings
external_field_full: (optional) NXorientation
For complex external fields not satisfied by External_field_brief
Hypertext Anchors¶
Table of hypertext anchors for all groups, fields, attributes, and links defined in this class.
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web page (HTML) anchor |
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