open loop


Also found in: Thesaurus, Medical, Acronyms, Encyclopedia, Wikipedia.

open loop

n. Engineering
A control system that does not have a feedback loop and thus is not self-correcting.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
References in periodicals archive ?
The open loop scrubbers wash out the sulphur and some industry experts believe they are the cheapest way to meet the new global rules.
Through this partnership, Sutton Bank, an issuer of prepaid cards nationwide, will expand its offerings supported by Galileo's platform that can support customized open loop prepaid cards for Visa, Mastercard and Discover.
Standing column well is often referred as a hybrid between closed loop and open loop system.
Open loop systems will perform sun position calculation regardless of cloudiness conditions and will position the generator based on the calculated values.
Closed Loop Pre-Paid Card Transactions, Open Loop Pre-Paid Card Transactions.
Product coverage: Closed Loop Pre-Paid Card Transactions, Open Loop Pre-Paid Card Transactions.
Ideal actuator model Open loop [F.sub.z] = -2.235 x [10.sup.5] Closed loop [F.sub.z] = -1.887 x [10.sup.5] Real actuator model Open loop [F.sub.z] = -2.235 x [10.sup.5] Closed loop [F.sub.z] = -2.02 x [10.sup.5] Ideal actuator model Open loop [M.sub.x] = -1.965 x [10.sup.6] Closed loop [M.sub.x] = -1.545 x [10.sup.6] Real actuator model Open loop [M.sub.x] = -1.965 x [10.sup.6] Closed loop [M.sub.x] = -1.67 x [10.sup.6] Ideal actuator model Open loop [M.sub.x] = 4.402 x [10.sup.5] Closed loop [M.sub.x] = 3.301 x [10.sup.5] Real actuator model Open loop [M.sub.x] = 4.402 x [10.sup.5] Closed loop [M.sub.x] = 3.64 x [10.sup.5] TABLE 3: Analyzed cases: different mass and flight conditions.
has announced an upgrade of its open loop test bench at its Coslada, Spain, manufacturing and testing facility.
* The ability to be run in various operating modes; speed controller (closed loop), speed controller (open loop), and current controller.
12 -- H2W Technologies has launched compact balanced spring mass actuator, voice coil actuator (NCM02-05-005-4JBL), which can be operated open loop and is suitable for controlled sinusoidal motion applications (1 to 1000 Hz for open loop applications and 1 to 125 Hz for closed loop applications).
The MWF-SGSP-OS Ultra-Sanitary Open Construction Weigh Belt Feeder can provide either a "closed loop" gravimetric control of material feed rate or an "open loop" control for precise convey rate output and totalization of an uncontrolled or intermittent material supply.