WIPO logo
Mobile | Deutsch | Español | Français | 日本語 | 한국어 | Português | Русский | 中文 | العربية |

Search International and National Patent Collections
World Intellectual Property Organization
Machine translation
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1980/000272    International Application No.:    PCT/JP1979/000178
Publication Date: 21.02.1980 International Filing Date: 05.07.1979
G01G 17/08 (2006.01), G01G 23/10 (2006.01), G01G 23/37 (2006.01)
Priority Data:
78/84696 10.07.1978 JP
Abstract: front page image
(EN)An electronic balance having highly improved accuracy of the measurement obtained by reducing the errors due to the scatter of data, which is an inevitable problem of the prior art in which the measurements have been made by calculating the simple average value of the sampled data during a predetermined period of time to avoid the interfering influences due to vibrations of the object being measured as such or caused by installing locations or windiness. In the electronic balance of this invention, the values of data sampled during a predetermined period of time are stored and at the same time the latest sampled value is compared in order with the previously stored values. When the value of difference obtained by the comparison is within a predetermined acceptable allowance, calculations are made for all the stored values to derive an average value. If the difference is beyond the allowance, the stored data are erased and the operations of sampling and comparison are repeated until the scatter of all the sampled values may come within the limit allowed. Since the electronic balance of this invention is capable of measurement with high accuracy even under the vibrative circumstances, it may be effectively used for body-weight measurement of laboratory animals or various kinds of control system in factories, and further is applicable to measurement systems which are equipped on moving carrier means such as cars, ships and the like.
(FR)Une balance electronique possede une precision hautement amelioree de la mesure obtenu reduisant les erreurs dues a la dispersion des donnees, ce qui est inevitable dans l"art anterieur ou les mesures ont ete faites en calculant la valeur moyenne simple des donnees echantillonnees pendant une periode temps predeterminee pour eviter les influences d"interference dues aux vibrations de l"objet lui-meme aux emplacements de l"installation ou au vent. Dans cette balance electronique, les valeurs des donnees echantillonnees pendant une periode de temps predeterminee sont emmagasinees et en meme temps la derniere valeur echantillonnee est comparee aux valeurs emmagasinees anterieurement. Lorsque la valeur de la difference obtenue par comparaison se trouve dans une plage de tolerance acceptable predeterminee, des calculs sont effectues pour toutes les valeurs emmagasinees pour en deriver une valeur moyenne. Si la difference se trouve au-dela de la tolerance, les donnees emmagasinees sont effacees et les operations d"echantillonnage et de comparaison sont repetees jusqu"a ce que la dispersion de toutes Les valeurs echantillonnees soit dans les limites tolerees.
Designated States:
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)