| 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. (en) |
| dbo:thumbnail |
wiki-commons:Special:FilePath/Pendulum_and_Hydrostat_Control.png?width=300 |
| dbo:wikiPageExternalLink |
https://archive.today/20120530070555/http:/www.btinternet.com/~philipr/torps.htm http://www.geocities.com/Pentagon/1592/ustorp1.htm https://web.archive.org/web/20091023132602/http:/geocities.com/Pentagon/1592/ustorp1.htm |
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| dbo:wikiPageWikiLink |
dbr:Robert_Whitehead dbr:Derivative dbc:Control_devices dbc:Mechanisms_(engineering) dbr:Pendulum dbr:Control_theory dbr:Torpedo dbr:Whitehead_torpedo dbc:Pendulums dbr:PID_controller dbc:Torpedoes dbr:Negative_feedback dbr:Second_World_War dbr:Hydrostat dbr:File:Pendulum_and_Hydrostat_Control.png |
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dbt:Cite_journal dbt:Ordered_list dbt:Reflist |
| dcterms:subject |
dbc:Control_devices dbc:Mechanisms_(engineering) dbc:Pendulums dbc:Torpedoes |
| gold:hypernym |
dbr:System |
| rdf:type |
yago:WikicatControlDevices yago:WikicatPendulums yago:Apparatus102727825 yago:Artifact100021939 yago:Device103183080 yago:Equipment103294048 yago:Instrumentality103575240 yago:Object100002684 yago:Pendulum103909160 yago:PhysicalEntity100001930 yago:Whole100003553 |
| 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. (en) |
| rdfs:label |
Pendulum-and-hydrostat control (en) |
| owl:sameAs |
freebase:Pendulum-and-hydrostat control yago-res:Pendulum-and-hydrostat control wikidata:Pendulum-and-hydrostat control dbpedia-he:Pendulum-and-hydrostat control https://global.dbpedia.org/id/4t788 |
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wikipedia-en:Pendulum-and-hydrostat_control?oldid=1001302680&ns=0 |
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wiki-commons:Special:FilePath/Pendulum_and_Hydrostat_Control.png |
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wikipedia-en:Pendulum-and-hydrostat_control |
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dbr:Hydrostat-and-pendulum_control dbr:Hydrostat_and_pendulum_control dbr:Pendulum_and_Hydrostat_Control dbr:Pendulum_and_hydrostat_control |
| is dbo:wikiPageWikiLink of |
dbr:Robert_Whitehead dbr:Hydrostat-and-pendulum_control dbr:Hydrostat_and_pendulum_control dbr:1868_in_science dbr:Torpedo_boat dbr:Torpedo dbr:Whitehead_torpedo dbr:PID_controller dbr:Mark_14_torpedo dbr:Mark_24_mine dbr:Whitehead_Mark_1_torpedo dbr:Whitehead_Mark_2_torpedo dbr:Schwartzkopff_torpedo dbr:Secret_(disambiguation) dbr:Whitehead_Mark_2C_torpedo dbr:Whitehead_Mark_1B_torpedo dbr:Pendulum_and_Hydrostat_Control dbr:Pendulum_and_hydrostat_control |
| is dbp:guidance of |
dbr:Whitehead_Mark_1_torpedo dbr:Whitehead_Mark_2_torpedo dbr:Whitehead_Mark_2C_torpedo dbr:Whitehead_Mark_1B_torpedo |
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wikipedia-en:Pendulum-and-hydrostat_control |
