摘要:
The invention concerns a device for measuring the speed and direction of rotation of an object (3) near to which it is placed. It comprises: a magnetic detection device (2) that delivers, in response to a rotation of the object (3) generating a magnetic field variation, signals representative of its speed and its direction of rotation, a conductor (4) intended to be connected to a power source to supply current to the magnetic detection device (2) at least, current receptor means (6) placed between the magnetic detection device (2) and the conductor (4) that create, from signals coming from said magnetic detection device (2), a modulation of the current (Iout) flowing in the conductor (4), said modulated current (Iout) reflecting both the speed and the direction of rotation of the object (3). Application particularly in the oil industry.
摘要:
The invention concerns a device for measuring the speed and direction of rotation of an object (3) near to which it is placed. It comprises: a magnetic detection device (2) that delivers, in response to a rotation of the object (3) generating a magnetic field variation, signals representative of its speed and its direction of rotation, a conductor (4) intended to be connected to a power source to supply current to the magnetic detection device (2) at least, current receptor means (6) placed between the magnetic detection device (2) and the conductor (4) that create, from signals coming from said magnetic detection device (2), a modulation of the current (Iout) flowing in the conductor (4), said modulated current (Iout) reflecting both the speed and the direction of rotation of the object (3). Application particularly in the oil industry.
摘要:
The invention provides a sensor cartridge comprising: (a) a protective housing (10), the protective housing being resistant to downhole oilfield environment; (b) a sensor (1) within the protective housing able to measure a parameter of the down-hole oilfield environment; (c) an attaching means (5) to interconnect with another sensor cartridge (102) and/or a hub (1OO); (d) a data communication unit (6) within the protective housing, the data communication unit providing wireless communication of the measured parameter to the other sensor cartridge and/or the hub when interconnected with the other sensor cartridge and/or the hub; and (e) a power unit (7) within the protective housing, the power unit providing power supply to sensor and/or data communication unit.
摘要:
The disclosure provides a sensor cartridge that includes a protective housing that is resistant to downhole oilfield environment; a sensor within the protective housing able to measure a parameter of the down-hole oilfield environment; an attaching device to interconnect with another sensor cartridge and/or a hub; a data communication unit within the protective housing, the data communication unit providing wireless communication of the measured parameter to the other sensor cartridge and/or the hub when interconnected with the other sensor cartridge and/or the hub; and a power unit within the protective housing, the power unit providing power supply to sensor and/or data communication unit.