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
Nickel-cobalt-manganese multi-element lithium ion battery cathode material with dopants and its methods of preparation
Permanent magnet rotor with flux concentrating pole pieces
Defect inspection method and device therefor
Apparatus and method for masking a clock signal
Coordinated multi-point transmission in a cellular network
Filler containing composition and process for production and use thereof
Method of manufacturing pipe with branch
  Randomly Featured Patents
Method of producing minced fish meat
Microencapsulation of polar liquids in copolymer shells
Bill paying machine
Golf ball
Travel document holder
Image reading apparatus
Semiconductor device and method of producing the same
Arc type blade transfer apparatus
Fluoxetine process from benzoylacetonitrile
Endarterectomy apparatus and process