This HTML5 document contains 79 embedded RDF statements represented using HTML+Microdata notation.

The embedded RDF content will be recognized by any processor of HTML5 Microdata.

Namespace Prefixes

PrefixIRI
dctermshttp://purl.org/dc/terms/
yago-reshttp://yago-knowledge.org/resource/
dbohttp://dbpedia.org/ontology/
n21http://dbpedia.org/resource/File:
foafhttp://xmlns.com/foaf/0.1/
n20https://web.archive.org/web/20091023132602/http:/geocities.com/Pentagon/1592/
n7https://global.dbpedia.org/id/
dbpedia-hehttp://he.dbpedia.org/resource/
yagohttp://dbpedia.org/class/yago/
dbthttp://dbpedia.org/resource/Template:
rdfshttp://www.w3.org/2000/01/rdf-schema#
freebasehttp://rdf.freebase.com/ns/
n13http://www.geocities.com/Pentagon/1592/
n11http://commons.wikimedia.org/wiki/Special:FilePath/
rdfhttp://www.w3.org/1999/02/22-rdf-syntax-ns#
n22https://archive.today/20120530070555/http:/www.btinternet.com/~philipr/
owlhttp://www.w3.org/2002/07/owl#
wikipedia-enhttp://en.wikipedia.org/wiki/
dbchttp://dbpedia.org/resource/Category:
dbphttp://dbpedia.org/property/
provhttp://www.w3.org/ns/prov#
xsdhhttp://www.w3.org/2001/XMLSchema#
goldhttp://purl.org/linguistics/gold/
wikidatahttp://www.wikidata.org/entity/
dbrhttp://dbpedia.org/resource/

Statements

Subject Item
dbr:Robert_Whitehead
dbo:wikiPageWikiLink
dbr:Pendulum-and-hydrostat_control
Subject Item
dbr:Hydrostat-and-pendulum_control
dbo:wikiPageWikiLink
dbr:Pendulum-and-hydrostat_control
dbo:wikiPageRedirects
dbr:Pendulum-and-hydrostat_control
Subject Item
dbr:Hydrostat_and_pendulum_control
dbo:wikiPageWikiLink
dbr:Pendulum-and-hydrostat_control
dbo:wikiPageRedirects
dbr:Pendulum-and-hydrostat_control
Subject Item
dbr:1868_in_science
dbo:wikiPageWikiLink
dbr:Pendulum-and-hydrostat_control
Subject Item
dbr:Torpedo_boat
dbo:wikiPageWikiLink
dbr:Pendulum-and-hydrostat_control
Subject Item
dbr:Torpedo
dbo:wikiPageWikiLink
dbr:Pendulum-and-hydrostat_control
Subject Item
dbr:Whitehead_torpedo
dbo:wikiPageWikiLink
dbr:Pendulum-and-hydrostat_control
Subject Item
dbr:PID_controller
dbo:wikiPageWikiLink
dbr:Pendulum-and-hydrostat_control
Subject Item
dbr:Mark_14_torpedo
dbo:wikiPageWikiLink
dbr:Pendulum-and-hydrostat_control
Subject Item
dbr:Mark_24_mine
dbo:wikiPageWikiLink
dbr:Pendulum-and-hydrostat_control
Subject Item
dbr:Whitehead_Mark_1_torpedo
dbo:wikiPageWikiLink
dbr:Pendulum-and-hydrostat_control
dbp:guidance
dbr:Pendulum-and-hydrostat_control
Subject Item
dbr:Whitehead_Mark_2_torpedo
dbo:wikiPageWikiLink
dbr:Pendulum-and-hydrostat_control
dbp:guidance
dbr:Pendulum-and-hydrostat_control
Subject Item
dbr:Schwartzkopff_torpedo
dbo:wikiPageWikiLink
dbr:Pendulum-and-hydrostat_control
Subject Item
dbr:Secret_(disambiguation)
dbo:wikiPageWikiLink
dbr:Pendulum-and-hydrostat_control
Subject Item
dbr:Whitehead_Mark_2C_torpedo
dbo:wikiPageWikiLink
dbr:Pendulum-and-hydrostat_control
dbp:guidance
dbr:Pendulum-and-hydrostat_control
Subject Item
dbr:Whitehead_Mark_1B_torpedo
dbo:wikiPageWikiLink
dbr:Pendulum-and-hydrostat_control
dbp:guidance
dbr:Pendulum-and-hydrostat_control
Subject Item
dbr:Pendulum-and-hydrostat_control
rdf:type
yago:Object100002684 yago:Instrumentality103575240 yago:Device103183080 yago:WikicatControlDevices yago:Pendulum103909160 yago:Apparatus102727825 yago:Equipment103294048 yago:Whole100003553 yago:PhysicalEntity100001930 yago:WikicatPendulums yago:Artifact100021939
rdfs:label
Pendulum-and-hydrostat control
rdfs:comment
Pendulum-and-hydrostat control is a control mechanism developed originally for depth control of the Whitehead torpedo. It is an early example of what is now known as proportional and derivative control.
foaf:depiction
n11:Pendulum_and_Hydrostat_Control.png
dcterms:subject
dbc:Torpedoes dbc:Control_devices dbc:Mechanisms_(engineering) dbc:Pendulums
dbo:wikiPageID
2931020
dbo:wikiPageRevisionID
1001302680
dbo:wikiPageWikiLink
dbc:Control_devices dbr:Derivative dbr:Pendulum dbr:Robert_Whitehead dbc:Pendulums dbc:Mechanisms_(engineering) dbr:Hydrostat dbr:Whitehead_torpedo n21:Pendulum_and_Hydrostat_Control.png dbr:Control_theory dbr:Second_World_War dbr:Torpedo dbc:Torpedoes dbr:PID_controller dbr:Negative_feedback
dbo:wikiPageExternalLink
n13:ustorp1.htm n20:ustorp1.htm n22:torps.htm
owl:sameAs
n7:4t788 dbpedia-he:בקר_מטוטלת_והידרוסטט wikidata:Q7162522 yago-res:Pendulum-and-hydrostat_control freebase:m.08dff6
dbp:wikiPageUsesTemplate
dbt:Cite_journal dbt:Reflist dbt:Ordered_list
dbo:thumbnail
n11:Pendulum_and_Hydrostat_Control.png?width=300
dbo:abstract
Pendulum-and-hydrostat control is a control mechanism developed originally for depth control of the Whitehead torpedo. It is an early example of what is now known as proportional and derivative control. The hydrostat is a mechanism that senses pressure; the torpedo's depth is proportional to pressure. However, with only a hydrostat controlling the depth fins in a negative feedback loop, the torpedo tends to oscillate around the desired depth rather than settling to the desired depth. The addition of a pendulum allows the torpedo to sense the pitch of the torpedo. The pitch information is combined with the depth information to set the torpedo's depth control fins. The pitch information provides a damping term to the depth control response and suppresses the depth oscillations.
gold:hypernym
dbr:System
prov:wasDerivedFrom
wikipedia-en:Pendulum-and-hydrostat_control?oldid=1001302680&ns=0
dbo:wikiPageLength
2634
foaf:isPrimaryTopicOf
wikipedia-en:Pendulum-and-hydrostat_control
Subject Item
dbr:Pendulum_and_Hydrostat_Control
dbo:wikiPageWikiLink
dbr:Pendulum-and-hydrostat_control
dbo:wikiPageRedirects
dbr:Pendulum-and-hydrostat_control
Subject Item
dbr:Pendulum_and_hydrostat_control
dbo:wikiPageWikiLink
dbr:Pendulum-and-hydrostat_control
dbo:wikiPageRedirects
dbr:Pendulum-and-hydrostat_control
Subject Item
wikipedia-en:Pendulum-and-hydrostat_control
foaf:primaryTopic
dbr:Pendulum-and-hydrostat_control