Device for pipe inspection and method of using same
A device is described that includes a sensor portion and a chassis portion. The sensor portion includes a plurality of sensing devices. The chassis portion is connected to the sensor portion and includes a first track and a second track. The second track is positioned adjacent the first track. The first and second tracks cooperate to substantially cover an entire width of the chassis portion.
1. A device, comprising:
a sensor portion, wherein the sensor portion comprises a plurality of sensing devices; and
a chassis portion connected to the sensor portion, wherein the chassis portion comprises:
a tether;
a winch assembly in contact with the tether, comprising:
a drive motor;
a clutch; and
a capstan drum in contact with the tether and coupled to the drive motor via the clutch;
a payout assembly in contact with the tether; and
a spindle assembly in contact with the tether;
wherein rotation of the drive motor in a predetermined direction causes at least one drive key to retreat radially inward within an outer diameter of the clutch.
2. The device of claim 1 , wherein the payout assembly comprises:
an encoder magnet;
a roller in contact with the tether and magnetically coupled to the encoder magnet; and
an encoder chip magnetically coupled to the encoder magnet.
3. The device of claim 1 , wherein the spindle assembly comprises:
a drive motor;
a levelwind system in contact with the tether; and
a tether spindle in contact with the tether and coupled to the drive motor.