Abstract: A bit used in a downhole environment has an active element that is movable relative to the bit. The bit is rotated in the downhole environment, and at least one downhole parameter is measured. The at least one downhole parameter is compared against a target parameter value, and when the at least one downhole parameter is beyond a threshold value of the target parameter value, the active element is selectively relative to the bit. Movement of the active element alters the proportion of the weight on the active element as compared to the other cutting structure of the bit. Changing the proportion of weight can be used to reduce the depth of cut of the cutting structure and to reduce or eliminate motor stall or stick-slip behavior.

Abstract: A toilet torso belt with sensors is disclosed. The torso belt is used by a toilet user while the toilet user is using the toilet to take health measurement readings of the user. Dynamic heart stress readings may be obtained and monitored over weeks, months and years. Rolling averages of heart function and heart health may be determined and deviations from the rolling averages may trigger notifications. Other health related measurements and functions such as temperature, respirations, heart rate, electrocardiogram, echocardiogram, and stethoscope sounds are also recorded and stored for trending and data analysis. An adjustable tensioner compresses the torso belt against the user's torso with a sufficient force based on the user's height, weight, sex, and age, and whether the sensors are against the user's skin or clothing, to allow the sensors to take measurements of the user.

Abstract: A toilet torso belt with sensors is disclosed. The torso belt is used by a toilet user while the toilet user is using the toilet to take health measurement readings of the user. Dynamic heart stress readings may be obtained and monitored over weeks, months and years. Rolling averages of heart function and heart health may be determined and deviations from the rolling averages may trigger notifications. Other health related measurements and functions such as temperature, respirations, heart rate, electrocardiogram, echocardiogram, and stethoscope sounds are also recorded and stored for trending and data analysis. An adjustable tensioner compresses the torso belt against the user's torso with a sufficient force based on the user's height, weight, sex, and age, and whether the sensors are against the user's skin or clothing, to allow the sensors to take measurements of the user.

Abstract: In one aspect of the present invention a method of determining a distance to a ferrous material comprises providing a plurality of magnetometers spaced at varying distances from a ferrous material, detecting a ferrous material with each of the plurality of magnetometers individually, establishing one of the plurality of magnetometers as a primary magnetometer, obtaining sensor readings from each of the plurality of magnetometers, forming a first ratio of the differences in the sensory readings of the primary magnetometer to the sensory readings of the other magnetometers, forming a second ratio of the differences in inversely cubed distances to the ferrous material from the primary magnetometer to inversely cubed distances to the ferrous material from the other magnetometers, setting the first ratio and the second ratio equal to each other, and calculating the distance to the ferrous material from the plurality of magnetometers.

Abstract: In one aspect of the present invention a method of determining a distance to a ferrous material comprises providing a plurality of magnetometers spaced at varying distances from a ferrous material, detecting a ferrous material with each of the plurality of magnetometers individually, establishing one of the plurality of magnetometers as a primary magnetometer, obtaining sensor readings from each of the plurality of magnetometers, forming a first ratio of the differences in the sensory readings of the primary magnetometer to the sensory readings of the other magnetometers, forming a second ratio of the differences in inversely cubed distances to the ferrous material from the primary magnetometer to inversely cubed distances to the ferrous material from the other magnetometers, setting the first ratio and the second ratio equal to each other, and calculating the distance to the ferrous material from the plurality of magnetometers.