GeneralSensorPostprocessor

This is a GeneralSensorPostprocessor, and functions as a base class for other sensor postprocessors

Description

GeneralSensorPostprocessor object implements a general sensor that takes in the calculated input signal from moose and outputs a realistic and sensor-mediated output that accounts for efficiency, drift, delay and noise of the sensor in question. This acts as a base class for ThermocoupleSensorPostprocessor class. The user can also employ the base class to realistically model any general sensor different from a thermocouple or a neutron counter.

Drift, delay, efficiency, signal to noise factor, uncertainty, standard deviation of noise and standard deviation of uncertainty can be either a constant or time-dependent functions. The noise and the uncertainty terms are determined by sampling from a Gaussian with a mean of zero and a user-supplied standard deviation. $var element = document.getElementById("moose-equation-c33f9e2e-fbeb-44e5-9c78-e1ea5782c9f3");katex.render("K_{p}", element, {displayMode:false,throwOnError:false});$ and $var element = document.getElementById("moose-equation-e4bb1ccf-3746-469d-b3a9-647ca44c88e3");katex.render("K_i", element, {displayMode:false,throwOnError:false});$ are multipliers for the proportional and the integral terms, respectively. The following equation shows the equation used to implement the GeneralSensorPostprocessor. The nomenclature for the table is given in the Table.

$var element = document.getElementById("moose-equation-a794fe8b-3100-4c6e-a71f-878276a613f5");katex.render(" \\tilde{u}(t) = u(t) + f_{SN}(t)n(\\sigma(t)) ", element, {displayMode:true,throwOnError:false});$

$var element = document.getElementById("moose-equation-c498f651-98d4-40b7-9c28-afb03458068a");katex.render("v(t) = \\mu(t) + \\eta(t) \\left\\{ K_p \\tilde{u}(t-\\tau(t)) + K_i \\int_{0}^{t} \\tilde{u}(t') R(t, t') dt' \\right\\} + \\epsilon(\\sigma(t))", element, {displayMode:true,throwOnError:false});$

Symbol	Meaning
$var element = document.getElementById("moose-equation-f7663629-f9df-4572-be8d-8fe667c08f6b");katex.render("t", element, {displayMode:false,throwOnError:false});$	Time
$var element = document.getElementById("moose-equation-4ed9633e-0e9a-4485-bcfe-04a05e8ab509");katex.render("v(t)", element, {displayMode:false,throwOnError:false});$	The output signal of the sensor
$var element = document.getElementById("moose-equation-b9be0d97-850a-46cd-90b7-2fe70f98d5f5");katex.render("u(t)", element, {displayMode:false,throwOnError:false});$	MOOSE-calculated unknown
$var element = document.getElementById("moose-equation-e194138b-cf3c-4759-85c4-e1431f8b6c07");katex.render("\\tau(t)", element, {displayMode:false,throwOnError:false});$	Delay interval (may be time-dependent)
$var element = document.getElementById("moose-equation-b96f2bc4-c7d7-41f1-aaea-7e2410ff2158");katex.render("\\mu(t)", element, {displayMode:false,throwOnError:false});$	Bias or drift term (may be time-dependent)
$var element = document.getElementById("moose-equation-ff7a579d-904c-4a53-8961-cc7614f5f16e");katex.render("\\eta(t)", element, {displayMode:false,throwOnError:false});$	Efficiency of sensor (may be time-dependent)
$var element = document.getElementById("moose-equation-aaa202f8-92b6-4179-85c0-18da93bf5a2d");katex.render("n(\\sigma(t))", element, {displayMode:false,throwOnError:false});$	Probability density function for the noise
$var element = document.getElementById("moose-equation-d471797e-ee53-461c-ad48-4f98fb76e814");katex.render("\\sigma(t)", element, {displayMode:false,throwOnError:false});$	Standard deviation (may be time-dependent)
$var element = document.getElementById("moose-equation-2e653f95-bfa5-4dcb-acfb-01c0eb251af2");katex.render("f_{SN}(t)", element, {displayMode:false,throwOnError:false});$	Signal-to-noise factor
$var element = document.getElementById("moose-equation-2e3e996e-56a4-4dce-a1d2-ef5c48fde4cf");katex.render("K_p", element, {displayMode:false,throwOnError:false});$	Multiplier for the proportional term
$var element = document.getElementById("moose-equation-3f247d66-d862-4738-a47e-1acb6d5eff36");katex.render("K_i", element, {displayMode:false,throwOnError:false});$	Multiplier for the integration term
$var element = document.getElementById("moose-equation-3bbfb7f5-ce0b-48ac-84a0-8133d35fef41");katex.render("\\epsilon(\\sigma(t))", element, {displayMode:false,throwOnError:false});$	Uncertainty
$var element = document.getElementById("moose-equation-bca35fef-f8bf-4b04-b026-76837ec9d062");katex.render("R(t, t')", element, {displayMode:false,throwOnError:false});$	Function used to capture convolution over time for delay term

Input Parameters

input_signalThe input signal postprocessor
C++ Type:PostprocessorName
Unit:(no unit assumed)
Controllable:No
Description:The input signal postprocessor

Required Parameters

R_function1The function R for the integration term.
Default:1
C++ Type:FunctionName
Unit:(no unit assumed)
Controllable:No
Description:The function R for the integration term.
delay_function0.1Delay function describing the delay over time
Default:0.1
C++ Type:FunctionName
Unit:(no unit assumed)
Controllable:No
Description:Delay function describing the delay over time
drift_function0Drift function describing signal drift over time
Default:0
C++ Type:FunctionName
Unit:(no unit assumed)
Controllable:No
Description:Drift function describing signal drift over time
efficiency_function0.8Efficiency function describing efficiency over time
Default:0.8
C++ Type:FunctionName
Unit:(no unit assumed)
Controllable:No
Description:Efficiency function describing efficiency over time
integral_weight0The weight assigned to the integral term
Default:0
C++ Type:double
Unit:(no unit assumed)
Controllable:No
Description:The weight assigned to the integral term
noise_std_dev_function0.5Standard deviation of noise function describing noise standard deviation over time
Default:0.5
C++ Type:FunctionName
Unit:(no unit assumed)
Controllable:No
Description:Standard deviation of noise function describing noise standard deviation over time
proportional_weight1The weight assigned to the proportional term
Default:1
C++ Type:double
Unit:(no unit assumed)
Controllable:No
Description:The weight assigned to the proportional term
seed1Seed for the random number generator
Default:1
C++ Type:unsigned int
Controllable:No
Description:Seed for the random number generator
signalToNoise_function0.2Signal to noise ratio for the modeled sensor
Default:0.2
C++ Type:FunctionName
Unit:(no unit assumed)
Controllable:No
Description:Signal to noise ratio for the modeled sensor
uncertainty_std_dev_function0.1Standard deviation of uncertainty function describing uncertainty std dev over time
Default:0.1
C++ Type:FunctionName
Unit:(no unit assumed)
Controllable:No
Description:Standard deviation of uncertainty function describing uncertainty std dev over time
vector_size1e+09The maximum size of vector to be saved
Default:1e+09
C++ Type:double
Unit:(no unit assumed)
Controllable:No
Description:The maximum size of vector to be saved

Optional Parameters

allow_duplicate_execution_on_initialFalseIn the case where this UserObject is depended upon by an initial condition, allow it to be executed twice during the initial setup (once before the IC and again after mesh adaptivity (if applicable).
Default:False
C++ Type:bool
Controllable:No
Description:In the case where this UserObject is depended upon by an initial condition, allow it to be executed twice during the initial setup (once before the IC and again after mesh adaptivity (if applicable).
execute_onTIMESTEP_ENDThe list of flag(s) indicating when this object should be executed. For a description of each flag, see https://mooseframework.inl.gov/source/interfaces/SetupInterface.html.
Default:TIMESTEP_END
C++ Type:ExecFlagEnum
Options:NONE, INITIAL, LINEAR, LINEAR_CONVERGENCE, NONLINEAR, NONLINEAR_CONVERGENCE, POSTCHECK, TIMESTEP_END, TIMESTEP_BEGIN, MULTIAPP_FIXED_POINT_END, MULTIAPP_FIXED_POINT_BEGIN, MULTIAPP_FIXED_POINT_CONVERGENCE, FINAL, CUSTOM, TRANSFER
Controllable:No
Description:The list of flag(s) indicating when this object should be executed. For a description of each flag, see https://mooseframework.inl.gov/source/interfaces/SetupInterface.html.
execution_order_group0Execution order groups are executed in increasing order (e.g., the lowest number is executed first). Note that negative group numbers may be used to execute groups before the default (0) group. Please refer to the user object documentation for ordering of user object execution within a group.
Default:0
C++ Type:int
Controllable:No
Description:Execution order groups are executed in increasing order (e.g., the lowest number is executed first). Note that negative group numbers may be used to execute groups before the default (0) group. Please refer to the user object documentation for ordering of user object execution within a group.
force_postauxFalseForces the UserObject to be executed in POSTAUX
Default:False
C++ Type:bool
Controllable:No
Description:Forces the UserObject to be executed in POSTAUX
force_preauxFalseForces the UserObject to be executed in PREAUX
Default:False
C++ Type:bool
Controllable:No
Description:Forces the UserObject to be executed in PREAUX
force_preicFalseForces the UserObject to be executed in PREIC during initial setup
Default:False
C++ Type:bool
Controllable:No
Description:Forces the UserObject to be executed in PREIC during initial setup

Execution Scheduling Parameters

control_tagsAdds user-defined labels for accessing object parameters via control logic.
C++ Type:std::vector<std::string>
Controllable:No
Description:Adds user-defined labels for accessing object parameters via control logic.
enableTrueSet the enabled status of the MooseObject.
Default:True
C++ Type:bool
Controllable:Yes
Description:Set the enabled status of the MooseObject.
outputsVector of output names where you would like to restrict the output of variables(s) associated with this object
C++ Type:std::vector<OutputName>
Controllable:No
Description:Vector of output names where you would like to restrict the output of variables(s) associated with this object
use_displaced_meshFalseWhether or not this object should use the displaced mesh for computation. Note that in the case this is true but no displacements are provided in the Mesh block the undisplaced mesh will still be used.
Default:False
C++ Type:bool
Controllable:No
Description:Whether or not this object should use the displaced mesh for computation. Note that in the case this is true but no displacements are provided in the Mesh block the undisplaced mesh will still be used.

Advanced Parameters

prop_getter_suffixAn optional suffix parameter that can be appended to any attempt to retrieve/get material properties. The suffix will be prepended with a '_' character.
C++ Type:MaterialPropertyName
Unit:(no unit assumed)
Controllable:No
Description:An optional suffix parameter that can be appended to any attempt to retrieve/get material properties. The suffix will be prepended with a '_' character.
use_interpolated_stateFalseFor the old and older state use projected material properties interpolated at the quadrature points. To set up projection use the ProjectedStatefulMaterialStorageAction.
Default:False
C++ Type:bool
Controllable:No
Description:For the old and older state use projected material properties interpolated at the quadrature points. To set up projection use the ProjectedStatefulMaterialStorageAction.

Material Property Retrieval Parameters

References

No citations exist within this document.

Description
Input Parameters
References