Patent ID: 11946325
Assignee: NABORS DRILLING TECHNOLOGIES USA, INC.
Field: Civil engineering (Other fields)
Classification: CPC E | IPC E

Claim 6:
7. The system of claim 6, wherein the first spinner subassembly comprises:
a first spinner configured to engage the tubular; and
a first drive gear coupled to the first spinner and configured to drive rotation of the first spinner, and the first encoder configured to count teeth of the first drive gear as the first drive gear rotates, wherein the first encoder produces a first pulse train, wherein each pulse in the first pulse train indicates that one of the teeth of the first drive gear passed through a sensing field of the first encoder;
wherein the second spinner subassembly comprises:
a second spinner configured to engage the tubular; and
a second drive gear coupled to the second spinner and configured to drive rotation of the second spinner, and the second encoder configured to count teeth of the second drive gear as the second drive gear rotates, wherein the second encoder produces a second pulse train, wherein each pulse in the second pulse train indicates that one of the teeth of the second drive gear passed through a sensing field of the second encoder.