A system and method are provided and include a subject vehicle having a sensor that senses information about an environment of the subject vehicle. An actuator rotates the sensor according to a commanded angle. A controller determines a position and a trajectory path of the subject vehicle, determines an adaptive point along the determined trajectory path based on the position, and generates the commanded angle for the actuator to rotate the sensor towards the adaptive point.

An ultrasonic level sensor includes: a housing; an ultrasonic transducer having a face surface for emitting an ultrasonic signal; a reflector with a flat surface positioned at an angle with respect to the face surface of the ultrasonic transducer for reflecting and directing the ultrasonic signal to a surface of a material in a container; and a scattering structure to reflect unwanted scattered ultrasonic signals away from the surface of the liquid, wherein the ultrasonic signal is reflected from the surface of the material and from the flat surface of the reflector and received by the ultrasonic transducer.

Aspects of the subject technology relate to a method of correcting sensor position. The method comprises transmitting one or more first pulses of a first frequency range towards a first portion of a seabed and one or more second pulses of a second frequency range towards a second portion of the seabed, and receiving a first set and second set of backscattered data. The method further includes processing the first and second set of backscattered data to form a first and second set of image data and comparing the first set and second set of image data. The method further includes creating one or more error vectors between the first set and second set of image data, and updating the first set of backscattered data based on the one or more error vectors to produce an updated set of image data.

A superficial foreign bodies detecting system for ultrasonic sensor is disclosed. The system comprises a micro controller which comprises a main controlling unit, a driving signal generating unit, a signal receiving unit, and a residual vibration detecting unit. The driving signal generating unit is controlled by the main controlling unit so as to transmit a first sensor driving signal to the ultrasonic sensor, thereby making the sensing head to output an ultrasonic wave. In case of the transmission of the first sensor driving signal is stopped, the residual vibration detecting unit is enabled to apply a residual vibration measuring process to the ultrasonic sensor. Consequently, according to a residual vibration signal received from the residual vibration detecting unit, the main controlling unit is able to judge whether there is at least one foreign body attached on the surface of the sensing head.

A portable device for orienting a level measuring instrument on a container is provided. The device can be placed on a surface of the instrument. The device includes a tilt sensor configured to determine an inclination of the device and an inclination of the instrument; a processor configured to determine an alteration that is required in an orientation of the instrument on the basis of the inclination of the instrument, a dimension of the container, and a position of the instrument relative to the container, or on the basis of an angle of inclination to be set for the instrument on the container. The alteration in the orientation of the instrument can be displayed on a display device of the device. A level measuring system and a method for using a portable device to orient a level measuring instrument on a container are also provided.

A detection distance calibration method, apparatus, and device are provided. At least one detection signal is collected (S101); a strength value of the at least one detection signal is determined (S102), where the strength value of the detection signal reflects a length of a detection distance; a reference strength value of the detection signal is determined according to the strength value of the at least one detection signal (S103); a calibration threshold is determined according to the reference strength value (S104), where the calibration threshold is used to determine a calibration range of the detection distance; and the detection distance is calibrated according to the calibration threshold and a strength value of a subsequently collected detection signal (S105). Accuracy of calibrating a detection distance can be improved.

A system compensates a motion of a vehicle component relative to another vehicle component or ground. One or more sensors are supported by the vehicle component. The system includes a control unit configured to perform the following acts: receiving sensor data from the one or more sensors; detecting the motion of the vehicle component; and determining compensation data to enable a compensation of deviations in sensor data that are caused by the motion.

An ultrasonic device includes a plurality of ultrasonic element arrays each of which is provided with a plurality of ultrasonic elements arranged in a first direction, in which the plurality of ultrasonic element arrays are disposed at positions which do not interfere with each other in the first direction, and are disposed at positions which are deviated relative to each other in a second direction intersecting the first direction.

Sensors coupled to a vehicle are calibrated using a dynamic scene with sensor targets around a motorized turntable that rotates the vehicle to different orientations. The sensors capture data at each orientation along the rotation. The vehicle's computer identifies representations of the sensor targets within the data captured by the sensors, and calibrates the sensor based on these representations. The motorized turntable may confirm that rotation has stopped to the vehicle to trigger sensor capture, and the vehicle may communicate completion of sensor capture at an orientation to the motorized turntable to trigger further rotation.

In an embodiment, an acoustic projector includes an acoustic transmit transducer capable of producing a sound pressure radiation in response to a driver signal received from a transmit source, an acoustic receive transducer capable of producing a source level signal in response to receiving at least a portion of the sound pressure radiation, and a controller configured to monitor the source level signal and report the source level signal monitored.