test_pressure_reference Namespace Reference

Functions
dict	_read (*dict nodes)
None	test_a_bare_absolute_pressure_is_what_its_gauge_reads ()
None	test_psia_says_absolute_and_atm_is_absolute ()
None	test_a_difference_is_the_same_size_and_refuses_a_reference ()
None	test_the_chamber_is_quoted_absolute ()
None	test_a_drawn_dome_and_the_dome_knob_at_the_same_number_agree ()
None	test_every_pressure_the_catalogue_and_the_drawings_use_is_classified ()

Variables
float	PSI = 6894.757293168361
float	ATM = 101325.0
	STAR = Path(__file__).resolve().parents[3]

Detailed Description

A drawing's pressures: absolute ones read as gauge unless they say psia, and
differences never carry a reference (feedtwin.model.pressure).

Checked against what the drawing's author wrote, not against the code: a tank
drawn "at 500 psi" sits at 500 on its gauge; a dome loader drawn at 500 and the
dome knob turned to 500 lock the tanks up at the same pressure; a 50 psi bias is
50 psi whatever reference anyone thinks of.

Function Documentation

_read()

dict test_pressure_reference._read ( *dict nodes )

protected

Definition at line 33 of file test_pressure_reference.py.

Referenced by test_a_bare_absolute_pressure_is_what_its_gauge_reads(), test_a_difference_is_the_same_size_and_refuses_a_reference(), test_a_drawn_dome_and_the_dome_knob_at_the_same_number_agree(), test_psia_says_absolute_and_atm_is_absolute(), and test_the_chamber_is_quoted_absolute().

test_a_bare_absolute_pressure_is_what_its_gauge_reads()

None test_pressure_reference.test_a_bare_absolute_pressure_is_what_its_gauge_reads

(

)

Definition at line 38 of file test_pressure_reference.py.

References _read().

test_a_difference_is_the_same_size_and_refuses_a_reference()

None test_pressure_reference.test_a_difference_is_the_same_size_and_refuses_a_reference

(

)

Definition at line 58 of file test_pressure_reference.py.

References _read().

test_a_drawn_dome_and_the_dome_knob_at_the_same_number_agree()

None test_pressure_reference.test_a_drawn_dome_and_the_dome_knob_at_the_same_number_agree

(

)

The case that found this. The shipped stand's control regulator is drawn at
450 and the dome-loaded one's dome comes from it; the cockpit's dome knob at
450 psig drives the same dome. Read as psia, the drawing's 450 was an atmosphere
under the knob's, and the same stand locked up 14.7 psi apart.

Definition at line 82 of file test_pressure_reference.py.

References _read().

test_every_pressure_the_catalogue_and_the_drawings_use_is_classified()

None test_pressure_reference.test_every_pressure_the_catalogue_and_the_drawings_use_is_classified

(

)

The lists in feedtwin.model.pressure are complete: every pressure parameter
the component catalogue declares, and every one on a shipped or saved drawing,
is either absolute or a difference. A new one fails here until it is placed.

Definition at line 105 of file test_pressure_reference.py.

test_psia_says_absolute_and_atm_is_absolute()

None test_pressure_reference.test_psia_says_absolute_and_atm_is_absolute

(

)

Definition at line 49 of file test_pressure_reference.py.

References _read().

test_the_chamber_is_quoted_absolute()

None test_pressure_reference.test_the_chamber_is_quoted_absolute

(

)

Definition at line 75 of file test_pressure_reference.py.

References _read().

Variable Documentation

ATM

float test_pressure_reference.ATM = 101325.0

Definition at line 29 of file test_pressure_reference.py.

PSI

float test_pressure_reference.PSI = 6894.757293168361

Definition at line 28 of file test_pressure_reference.py.

STAR

test_pressure_reference.STAR = Path(__file__).resolve().parents[3]

Definition at line 30 of file test_pressure_reference.py.