A program and a control device capable of calibrating a detection value of a sensor that detects contact with a steering wheel are provided. The program in accordance with the present invention is characterized by causing a computer to execute processing of distinguishing whether or not a user is on a driver's seat of a vehicle; acquiring, from a sensor (21) that converts contact with a steering wheel (2) into an electric signal for detection, a detection value of the detected electric signal; determining whether or not a difference between the detection value acquired when it has been distinguished that the user is not on the driver's seat, and a reference value is equal to or larger than a threshold value; and setting the detection value as the reference value when it has been determined that the difference is not equal to or larger than the threshold value.

A method to produce a magnet arrangement, the method having steps of selecting a depth of investigation to be achieved by a downhole tool, identifying a desired magnetic field strength at the depth of investigation, producing a set of magnets to be incorporated into the downhole tool, sorting the set of magnets based on a quality of each of the magnets and optimizing the set of magnets such that the quality of each of the magnets results, when arranged, in the desired magnetic field strength at the depth of investigation and wherein the optimizing minimizes a cost function of the set of magnets produced.

A method to produce a magnet arrangement, the method having steps of selecting a depth of investigation to be achieved by a downhole tool, identifying a desired magnetic field strength at the depth of investigation, producing a set of magnets to be incorporated into the downhole tool, sorting the set of magnets based on a quality of each of the magnets and optimizing the set of magnets such that the quality of each of the magnets results, when arranged, in the desired magnetic field strength at the depth of investigation and wherein the optimizing minimizes a cost function of the set of magnets produced.

Systems, methods, and apparatuses are provided for evaluating an image quality of an image produced by an x-ray computed tomography (CT) system.

Systems, methods, and apparatuses are provided for evaluating an image quality of an image produced by an x-ray computed tomography (CT) system.

A gamma-ray spectrometer calibration system comprises a light guide, a photomultiplier tube, a laser, and analysis electronics. The light guide is optically coupled to the scintillation crystal, the laser and the photomultiplier tube, such that the laser can provide reference signals to the photomultiplier tube. In some embodiments, one or more temperature sensors are provided, such that the analysis electronics determine initial settings and adjust the initial settings based on the temperatures measured by the temperature sensors. Additional apparatus, methods, and systems are disclosed.

A gamma-ray spectrometer calibration system comprises a light guide, a photomultiplier tube, a laser, and analysis electronics. The light guide is optically coupled to the scintillation crystal, the laser and the photomultiplier tube, such that the laser can provide reference signals to the photomultiplier tube. In some embodiments, one or more temperature sensors are provided, such that the analysis electronics determine initial settings and adjust the initial settings based on the temperatures measured by the temperature sensors. Additional apparatus, methods, and systems are disclosed.

In some embodiments, an apparatus and a system, as well as a method and an article, may operate to receive gamma ray measurements from a gamma ray detector; to generate a spectrum based on the gamma ray measurements, the spectrum including a plurality of channels and count rates for the plurality of channels, wherein a channel number of a channel corresponds to energy values of the received gamma rays; to fit a curve to a portion of the spectrum; to determine a location of the maximum of the first derivative of the curve; and to adjust a gain of the gamma ray detector based on the location of the maximum of the first derivative of the curve. Additional apparatus, systems, and methods are disclosed.

In some embodiments, an apparatus and a system, as well as a method and an article, may operate to receive gamma ray measurements from a gamma ray detector; to generate a spectrum based on the gamma ray measurements, the spectrum including a plurality of channels and count rates for the plurality of channels, wherein a channel number of a channel corresponds to energy values of the received gamma rays; to fit a curve to a portion of the spectrum; to determine a location of the maximum of the first derivative of the curve; and to adjust a gain of the gamma ray detector based on the location of the maximum of the first derivative of the curve. Additional apparatus, systems, and methods are disclosed.

Calibration apparatus including a pressure cap and a pressure base that define a pressure chamber that is fillable with a liquid. A reference sensor and a sensor under test are exposed to acoustic pressures in the liquid, and responses measured. The sensor under test is secured through one of the pressure cap or base, and responses measured at acoustic frequencies as low as 0.001 Hz and at hydrostatic pressures of at least 5000 psi.