Resources Contact Us Home
System for acquiring and recording signals delivered by a set of sensors disposed in well probes

Image Number 3 for United States Patent #4901289.

A system is provided for acquiring and recording signals delivered by a set of sensors disposed in one or more probes lowered into a well at the end of a multi-function cable.The different signals to be transmitted are multiplexed before being applied to an acquisition chain adapted for amplifying them, digitizing them and coding them before applying them to a transmission channel in the form of blocks of digitized words. The multiplexing means may comprise several multiplexing units. The sampling frequency of each signal and the formation of the blocks of words are adapted to the number of units effectively used. In the surface installation, the blocks of words are dissociated and stored in a memory in a single mode suitable for all the blocks whatever their formation.

  Recently Added Patents
Transfer device and image forming apparatus including regulation member
Three-dimensional shape data processing apparatus and three-dimensional shape data processing method
Selecting one of a plurality of print modes based on pixel coverage of a document
Salts and polymorphs of desazadesferrithiocin polyether analogues as metal chelation agents
Towel clip
Vanadium, cobalt and strontium additives for use in aluminum back solar cell contacts
Information display
  Randomly Featured Patents
Vibration damper for a motor vehicle, the vibration damper having a decompression stop boundary bracket
Erection control system
Polypeptide compositions toxic to anthonomus insects, and methods of use
Benzoisothiazole azo dyestuffs
Electrical actuator for ship roll stabilization
Catalyzing emulsion paper release compositions
Tool for rotary chip removal, a tool tip and a method for manufacturing a tool tip
Hydroelectric generator system
Delay door closer
Timepiece comprising a capacitive sensing device