A CMOS power sensor is disclosed in the present invention. Message recognition of a first type is performed responsive to a first type of message input, to provide text data in accordance with both the shared language model and a first model specific to the first type of message recognition. The service server replies with the electronic page address of a page corresponding to the code and that can be used to determine the electronic address, the electronic address is made available to the communications terminal and said communications service is accessed. The heat chamber has a mechanism to heat the substrate supplying gas of a temperature higher than the room temperature by forced convection. A method for performing an operation in a borehole includes forming a well tool having at least one linear motor as described above, conveying the linear motor into the borehole, and operating a well tool by activating the linear motor.