NEW RECORDING SYSTEMS FOR DEFLECTOGRAPHS. EQUIPMENT AND PROCESSING OF RESULTS

NOUVEAUX SYSTEMES D'ENREGISTREMENT POUR DEFLECTOGRAPHES- EQUIPEMENT-EXPLOITATION

The 32 deflectographs operating in France at the present time carry out a large number of measurements each year, the collection and processing of which necessitated as far back as 1967 the use of computerized techniques. Working under extremely difficult conditions, the recorders operated satisfactorily for approximately 10 years. They were not directly compatible with the computers in use. For maintenance reasons, their replacement has become necessary at a time when new recording systems using compatible cassettes come increasingly into use. The processing of deflection measurements gives rise to two problems: (1) measurement processes and computer programs must show sufficient homogeneity so that results and equipment can be compared between themselves; (2) the many applications of the deflectograph, which sometimes necessitate different recording and processing systems, must be fully exploited. The introduction of this new equipment will have consequences on the conditions of use of the measuring apparatus and on methods of processing the results. (TRRL)

• Corporate Authors:

  Laboratoire Central des Ponts et Chausees (LCPC)

  Boulevard Lefebvre 58
  Paris Cedex 15,   France  F-75732
• Authors:
  • Siffert, M
  • Briant, M
  • Faubert, M
• Publication Date: 1979-1-2

Language

• French

Media Info

• Features: Figures; Photos; References; Tables;
• Pagination: p. 65-74
• Serial:
  • Bulletin de Liaison des Lab des Ponts et Chaussees
  • Issue Number: 99
  • Publisher: Laboratoire Central des Ponts et Chausees (LCPC)

Subject/Index Terms

• TRT Terms: Automatic control; Automation; Charts; Computers; Data collection; Data recorders; Deflection; Deflectographs; Electronics; Equipment; Evaluation and assessment; Information processing; Measurement; Printers; Recording
• Uncontrolled Terms: Cassettes; Compatibility
• Geographic Terms: France
• Old TRIS Terms: Data recording
• ITRD Terms: 3882: Automatic; 6486: Chart; 8623: Data acquisition; 5586: Deflection; 6187: Deflectograph; 6965: Electronics; 3674: Equipment; 9020: Evaluation (assessment); 8036: France; 6136: Measurement; 6969: Recording
• Subject Areas: Design; Highways; Pavements; I22: Design of Pavements, Railways and Guideways;

Filing Info

• Accession Number: 00312484
• Record Type: Publication
• Source Agency: Laboratoire Central des Ponts et Chausees (LCPC)
• Files: ITRD, TRIS
• Created Date: Nov 19 1980 12:00AM