| 摘要 |
Disclosed herein is a method of communicating by modifying a voltage amplitude of a signal and receiving the communication signal by employing a variable threshold detection circuit in the downhole device, which facilitates dynamic determination of the threshold voltage under varying system and environmental conditions. Further disclosed is a sensor system having a sensor (122) and at least one communication line (130) operable with the sensor. The transmission medium is configured to convey data transmitted by the sensor to a remote location (110). The sensor transmits data on the communication line a plurality of times by at least two methods of transmission of modulation. Further disclosed herein is a method based on the foregoing. Further disclosed is a system for communicating data between a downhole device and a remote location including a remote device for generating a communication signal, the remote device configured to modify a voltage amplitude of said communication signal. |
