Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
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
Multi-state DC-DC converter having undirectional switches
Basketball
Optical coherence tomography with multiple sample arms
Ice data collection system
Methods of isolating bipotent hepatic progenitor cells
Method of preparing MgB.sub.2 superconducting wire and the MgB.sub.2 superconducting wire prepared thereby
Method and apparatus for power management control of an embedded memory having sleep and shutdown features
  Randomly Featured Patents
Suspension seat for vehicles with restricted operator environment
Magnetic tunnel junction and memristor apparatus
Intercostal lockable directable port device
Communication apparatus
Traveling operation device and working vehicle
Cake baking process and device
Backward compatible multi-carrier transmission system
Single lens reflex camera with automatic exposure control circuit
Apparatus and methods for managing packets in a broadband data stream
Method using planarizing gate material to improve gate critical dimension in semiconductor devices