Back to results
US 10,761,106 B2Granted
Rotary speed sensors
AssigneeHamilton Sundstrand Corporation
InventorsGary L. Hess, Kirk A. Lillestolen
Life of this patent
Estimating the term…
Abstract
A speed detection device includes a comparator module, a sensor lead with a node connected to the comparator module, and a limit set module. The limit set module is connected to the sensor lead node and to the comparator by an upper limit lead and a lower limit lead to provide upper and lower limits to the comparator that vary according to amplitude variation in voltage applied to the sensor lead.
Claims4
A rotary speed detector, comprising:
- a comparator module;
- a sensor lead with a node connected to the comparator module;
- a limit set module connected to the sensor lead node;
- an upper limit lead connecting the limit set module to the comparator module;
- a lower limit lead connecting the limit set module to the comparator module,
- an inverting amplifier module connected in series between the summing or max value selection module and the lower limit lead;
- wherein the limit set module includes a root-mean-square (RMS) level detection module connected to the sensor lead node, and
- wherein the limit set module includes a summing or max value selection module connected in series between the RMS level detection module and the comparator module.
5 more elements
A rotary speed detector, comprising,
- a comparator module;
- a sensor lead with a node connected to the comparator module;
- a limit set module connected to the sensor lead node;
- an upper limit lead connecting the limit set module to the comparator module;
- a lower limit lead connecting the limit set module to the comparator module;
- a constant voltage source connected to the summing or maximum value selection module;
- wherein the limit set module includes a root-mean-square (RMS) level detection module connected to the sensor lead node, and
- wherein the limit set module includes a summing or max value selection module connected in series between the RMS level detection module and the comparator module.
5 more elements
Dependencies are inferred from the claim text.