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Machine translation
1. (WO1981000601) ELECTRONIC COMPENSATOR FOR A PNEUMATIC SERVO CONTROLLED LOAD BEARING BELLOWS SYSTEM
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1981/000601    International Application No.:    PCT/US1980/001044
Publication Date: 05.03.1981 International Filing Date: 11.08.1980
IPC:
F15B 9/03 (2006.01), G05D 3/14 (2006.01)
Applicants:
Inventors:
Priority Data:
69465 24.08.1979 US
Title (EN) ELECTRONIC COMPENSATOR FOR A PNEUMATIC SERVO CONTROLLED LOAD BEARING BELLOWS SYSTEM
(FR) COMPENSATEUR ELECTRONIQUE POUR UN SYSTEME PNEUMATIQUE DE SOUFFLETS SERVO-COMMANDE DE SUPPORT DE CHARGE
Abstract: front page image
(EN)An electronic compensation circuit for a pneumatic load bearing bellows system closed on position, in which a servo valve provides pressure to the bellows to actuate the top of the bellows to move to a predetermined position in response to a control signal. The compensation circuit (42) cancels at least one load-variable system characteristic which, if not cancelled would cause system instability at system gain levels which are necessary for desired system response. The compensation circuit electronically provides a replacement system characteristic which permits the system to be operated at a gain level substantially higher than the gain level at which the uncompensated system goes unstable.
(FR)Circuit de compensation electronique pour un systeme pneumatique de soufflets de support de charge ferme en position, dans lequel une servo-vanne fournit de la pression aux soufflets pour faire deplacer le couvercle des soufflets jusqu'a une position predeterminee en reponse a un signal de commande. Le circuit de compensation (42) annule au moins une caracteristique du systeme variable avec le poids, laquelle, si elle n'etait pas annulee, provoquerait une instabilite du systeme au niveau de gain necessaire a la reponse desiree du systeme. Le circuit de compensation fournit electroniquement une caracteristique de remplacement du systeme, permettant a celui-ci de fonctionner a un niveau de gain sensiblement superieur a celui auquel le systeme non compense devient instable.
Designated States:
Publication Language: English (EN)
Filing Language: English (EN)