Abstract: A transportation monitoring method is provided, including the following steps. A monitoring image of a robot blade outside a carrier is captured from a fixed field of view by an image capturing device. The robot blade is configured to move an item into or out of the carrier. Next, a sampling area is obtained from the monitoring image by a processing device. Also, a tilting state of the robot blade is determined according to the sampling area by the processing device. When the processing device determines that the robot blade is tilted, the processing device sends a warning signal. A transportation monitoring system is also provided.

Abstract: A method for applying a spray, in particular a plant protection product, onto a field, including: detecting plants in a field section of the field with the aid of an optical and/or infrared detection unit; identifying at least one plant row in the detected field section; defining a plant area encompassing the at least one identified plant row and a weed area, different from the plant area, in the detected field section; ascertaining a plant identifier of the weed area; and applying spray onto the weed area, in particular onto the field section, depending on the ascertained plant identifier with the aid of a spraying device.

Abstract: The present disclosure provides a measurement method including providing a base, a device disposed on the base, and a lid disposed over the base and the device; irradiating a top surface of the device through an opening of the lid to obtain a first focal plane associated with a top surface of the device; irradiating the lid at the lower end of the opening to obtain a second focal plane associated with the lid at the lower end of the opening; and deriving a distance between the top surface of the device and an interior surface of the lid facing the top surface of the device based on a difference between a level of the first focal plane and a level of the second focal plane. The present disclosure also provides a package structure for the measurement.

Abstract: A distance measuring apparatus includes: a DTC generator unit that generates DTC signals having edges delayed to define time segments; a template generator unit that generates template signals consecutively in a pre-designated number within the time segments in response to the DTC signals; a coarse time determiner unit that determines the time segment in which a delayed signal is received by calculating correlations with the consecutively generated template signals; a fine time measurer unit that determines the time at which the delayed signal is received within the time segment determined at the coarse time determiner unit from the results of calculating correlations between multiple template signals within the determined time segment and the delayed signal; and a distance calculator unit that calculates the total delay duration of the delayed signal and calculates the distance to the measurement target object from the calculated delay duration.

Abstract: A loading system includes one or more adjusting mechanisms configured to adjust a position of the container held by the container holder, a controller configured to control operation of the one or more adjusting mechanisms, a transfer mechanism configured to move a loadable object into a holding space of the container with the container held by the container holder to transfer the loadable object to the container, and one or more position detectors. The one or more position detectors are located to detect a relative position of a loadable object when the loadable object is held by the transfer mechanism and is in the holding space.

Abstract: A first forming apparatus includes a forming drum, a forming unit, a conveyance path, and a conveyance unit that conveys the forming drum along the conveyance path. A tire member is formed with tire components wound on the forming drum by the forming unit. The first forming apparatus also includes a measurement unit that performs, on a downstream side of the forming unit in the conveyance path, measurement on the tire components wound on the forming drum while the forming drum is moving through the measurement unit, in a tire radial direction over a width direction of the forming drum, and an inspection unit that performs inspection on winding states of the tire components based on a measurement result due to the measurement unit.

Abstract: A reading apparatus includes an light emitter that performs irradiation with light, a light receiver that receives light reflected from an object to be imaged, a first optical path in which specularly reflected light is guided to the light receiver as a read image, a second optical path in which diffusely reflected light is guided to the light receiver as a read image, and a switching section that switches between the first optical path and the second optical path by rotating the light emitter.

Abstract: An optical probe includes an optical housing, a transmitting lens and a receiving lens. The optical housing extends from a proximate end to an opposing distal end. The transmitting lens is disposed at the distal end and is configured to output a first transmitted signal beams having a first transmission axis and a second transmitted beam having a second transmission axis that is different from the first transmission axis. The receiving lens is disposed at the distal end and configured to receive the first and second reflected signal beams corresponding respectively to the first and second transmitted signal beams. The optical housing has formed therein a transmitting optical channel configured to communicate an input optical signal from the proximate end to the transmitting lens. A receiving optical channel separated from the transmitting optical channel communicates the first and second reflected signal beams to the proximate end.

Abstract: A process for aligning a laser in a gear inspection system is disclosed. The method comprises fixing a gear for inspection within a gear inspection system and emitting a first signal from a laser to a point of interest of the gear. A reflection of the first signal is received as the first signal reflects off the point of interest of the gear. Based on the reflection of the first signal, an orientation of the laser is adjusted. Subsequently, a second signal is emitted from the laser to the point of interest of the gear, and a reflection of the second signal is received as the second signal reflects off the point of interest of the gear. Values corresponding to the orientation of the laser are stored based on the reflection of the second signal.

Abstract: A laser radar for a work vehicle includes a light emitter, a light receiver, and a light attenuation layer. The light emitter is configured to emit a laser light. At least part of the laser light is reflected as a reflected light. The light receiver is configured to receive the reflected light. The light attenuation layer is provided to weaken the reflected light such that the light receiver is configured to receive the reflected light which has been weakened via the light attenuation layer.

Abstract: A computing system includes image receiving logic configured to receive image data indicative of an image of a field, ground identification logic configured to identify a first image portion of the image representing ground in the field, image segmentation logic configured to identify a remaining image portion that omits the first image portion from the image, and crop classification logic configured to apply a crop classifier to the remaining image portion and identify a second image portion of the image that represents locations of crop plants in the field. The computing system also includes weed identification logic configured to identify locations of weed plants in the field based on the identification of the first and second image portions and control signal generation logic configured to generate a machine control signal based on the identified locations of the weed plants.

Abstract: In a distance measuring apparatus, an irradiating unit irradiates a measurement region with a pattern light comprised of first and second luminous patterns. The second luminous pattern has a relatively low intensity lower than the intensity of the first luminous pattern. A light receiving sensor receives, for each pixel, a return light component based on reflection of the pattern light by a target object. A measurement controller determines whether an intensity of each return light component received by the corresponding pixel satisfies a measurement condition, and obtains, as effective distance information, at least one distance value of at least one pixel of the light receiving sensor when it is determined that the intensity of the return light component received by the at least one pixel satisfies the measurement condition.

Abstract: A personal mobility and a control method are provided. The personal mobility includes: a main body; a front wheel mounted on the front end of the main body; a pair of rear wheels mounted on the rear end of the main body; an actuator configured to adjust a distance between the pair of rear wheels; an image data device mounted on the personal mobility and having a field of view outside of the personal mobility, the image data device configured to acquire image data; and a controller configured to determine at least one of user state information or external environment information based on the image data, and control the actuator to adjust the distance between the pair of rear wheels based on at least one of the user state information or the external environment information.

Abstract: A sample-and-hold circuit is provided that includes a plurality of sample-and-hold branches arranged in parallel and each including a buffer and a sample-and-hold block including one or more sample-and-hold cells. The sample-and-hold circuit further includes a clock and timing circuit arranged for setting an adaptable time delay to enable sampling and sampling phase for each sample-and-hold block. The time delay of at least one sample-and-hold block can be set to value bigger than one sampling clock period.

Abstract: A device is proposed for the contactless three-dimensional inspection of a circular, mechanical component (20) with toothing having a main axis of rotation, comprising: means for scanning the teeth, comprising at least one first pair of laser measurement modules (12A, 12B) and means for the rotational driving (11), about the main axis, of said component relative to the laser measurement modules; means for rebuilding a virtual three-dimensional representation of the component using data coming from said scanning means; means of dimensional inspection using the three-dimensional representation; each pair of modules comprising a first module oriented towards a first face of a tooth and a second module oriented towards a second face of a tooth; the modules being oriented relative to the component so that during a rotation of the component, the scanning means scan the first and second faces of each tooth throughout their thickness and depth.

Abstract: Various embodiments of the present invention relate to: an electronic device capable of measuring illuminance by using an optical sensor and providing information on the measured illuminance to a user; and an operating method therefor.

Abstract: A topography measurement system includes a radiation source; a first grating; imaging optics; a movement mechanism; detection optics; a second grating; and a detector. The radiation source is configured to generate a radiation beam and includes a light emitting diode to produce to the radiation. The first grating is configured to pattern the radiation beam. The imaging optics is configured to form a first image of the first grating at a target location on a substrate. The movement mechanism is operable to move the substrate relative to the image of the first grating such that the target location moves relative to the substrate. The detection optics is configured to receive radiation from the target location of the substrate and form an image of the first image at the second grating. The detector is configured to receive radiation transmitted through the second grating and produce an output signal.

Abstract: A laser-based measurement device includes a motor comprising a hollow shaft. The laser-based measurement device also includes a laser transmitter disposed in the hollow shaft. The laser-based measurement device also includes an optical device disposed at the motor. The motor is configured to drive the optical device to rotate. The optical device is configured to guide a laser beam transmitted by the laser transmitter out of the hollow shaft, or to guide the laser beam reflected by an external environment into the hollow shaft.

Abstract: In accordance with an irradiation position of pulsed light, a selecting unit outputs a first transfer signal to a first transfer electrodes and outputs a second transfer signal to a second transfer electrodes, to allow signal charges to flow into first and second signal charge-collecting regions of a pixel corresponding to the irradiation position, and outputs a third transfer signal to a third transfer electrodes to allow unnecessary charges to flow into an unnecessary charge-discharging regions of a pixel other than the pixel corresponding to the irradiation position. An arithmetic unit reads out signals corresponding to respective quantities of signal charges collected in the first and second signal charge-collecting regions of the pixel selected by the selecting unit, and calculates a distance to an object based on a ratio between a quantity of signal charges collected in the first signal charge-collecting regions and a quantity of signal charges collected in the second signal charge-collecting regions.

Abstract: A detector (110) for determining a position of at least one object (112), the detector (110) comprising: at least one transfer device (114) for imaging the object (112) into an image plane (116), the transfer device (114) having a focal plane (118), at least one longitudinal optical sensor (122), wherein the longitudinal optical sensor (122) has at least one sensor region (124), wherein the longitudinal optical sensor (122) is at least partially transparent, wherein the longitudinal optical sensor (122) is designed to generate at least one longitudinal sensor signal in a manner dependent on an illumination of sensor region (124) by at least one light beam propagating from the object to the detector (110), wherein the longitudinal sensor signal, given the same total power of the illumination, is dependent on a beam cross-section of the light beam in the sensor region (124); and at least one evaluation device (129), wherein the evaluation device (129) is designed to generate at least one item of information on

Abstract: A continuous wave time of flight (CW-TOF) camera that modulates sensitivity of its photosensor during an exposure period at a frequency of modulation of structured light that the camera transmits to illuminate a scene that it images but phase shifted relative to phase of the transmitted light by a sampling phase offset modified by a sequence of N perturbation phase shifts ?n=2?(n?1)/N, (1?n?N), and modifies the structured light in synchrony with the sequence of perturbation phase shifts to reduce error due to multipath interference in determining distances to features in the scene.

Abstract: The invention relates to a method for engraving, marking and/or labelling a workpiece using a laser plotter, as well as a laser plotter in which at least one beam source in the form of a laser is provided in a housing of the laser plotter, into which the item to be machined is inserted. The workpiece is placed on a processing table, and a laser beam emitted by the beam source is sent via deflecting elements to at least one focusing unit, from which the laser beam is deflected in the direction of the workpiece and is focused for the processing. The control, in particular the position control of the laser beam to the workpiece, takes place via a software running on a control unit, so that the workpiece is processed line by line by movement of a sliding carriage.

Abstract: To enable scanning using measurement light with a small-sized displacement measuring apparatus. The displacement measuring apparatus includes a MEMS mirror for scanning using measurement light that is output from a light projection lens. The light projection lens has a focus position, at which the measurement light is condensed, at the MEMS mirror or in the vicinity of the MEMS mirror on an optical axis of the measurement light. The measurement light that is reflected at the MEMS mirror spreads in a strip-shaped manner as the measurement light comes close to a measurement region.

Abstract: Computer-implemented methods and systems for at least partially removing extrinsic static noise from data obtained by an optical time-of-flight sensor using full-waveform analysis. The method comprises finding a mathematical representation of the electromagnetic crosstalk present in victim calibration traces and caused by aggressor photosensitive element using aggressor calibration traces and victim calibration traces, determining a predetermined threshold for the amplitude of the aggressor calibration trace at which the electromagnetic crosstalk is present in the victim calibration traces, predicting the extrinsic static noise generated by the aggressor signal on the synchronized victim operation trace using the mathematical representation to generate a predicted crosstalk signal, removing the predicted crosstalk signal from the synchronized victim operation trace to output a denoised signal.

Abstract: A robotic vehicle may include one or more functional components configured to execute a lawn care function, a sensor network comprising one or more sensors configured to detect conditions proximate to the robotic vehicle, an object detection module configured to 5 detect objects proximate to the robotic vehicle using contact-less detection, a positioning module configured to determine robotic vehicle position, and a mapping module configured to generate map data regarding a parcel on which the robotic vehicle operates.

Abstract: The invention relates to a method of determining a time-of-flight of an optical signal between a starting point and a reflection point of an optical path, comprising: supplying to the path at least one optical probing signal; detecting an electrical return signal according to an optical return signal returning from the path in response to a corresponding one of the probing signals using direct detection; deriving at least one receive code sequence by sampling and slicing the return signal using a sampling rate corresponding to a bit rate of a sequence of pulses of the probing signal; determining a correlation function by correlating the transmit code sequence and the at least one receive code sequence; and identifying a main peak of the correlation function that corresponds to the reflection point and a time position of the peak, and determining the time-of-flight as the time position of the peak.

Abstract: A method of detecting a distance, comprising emitting an optical pulse, receiving at a first detector a reflected optical pulse, from a first exposure start time to a first exposure finish time, generating a first detector signal, receiving at an n-th detector the reflected optical pulse, from an n-th exposure start time to an n-th exposure finish time, generating an n-th detector signal, wherein the first exposure start time begins before the n-th exposure start time and the first exposure finish time ends before the n-th exposure finish time and the first exposure duration partially overlaps the n-th exposure duration and determining the distance of an object based on the first detector signal and the n-th detector signal.

Abstract: The present invention relates to an optical tap device. The optical tap device includes a cylinder having a rigid outer surface. A ferrule is configured to be located within the outer surface of the cylinder. The ferrule includes an inner chamber extending along a length of the ferrule. An emitter fiber and at least one tap fiber are located within the inner chamber. The emitter fiber is positioned within the inner chamber to be located at a central axis of a light source abutting the ferrule and the at least one tap fiber is positioned within the inner chamber to be located radial to the central axis of the light source abutting the ferrule. An optical feedback system and a method of providing optical feedback are also disclosed.

Abstract: A three-dimensional distance measurement apparatus include: a plurality of light sources 11 that irradiate light onto the subject; a light emission control unit 12 that controls light emission from a plurality of light sources; a light-receiving unit 13 that detects reflection light from the subject; a distance-calculating unit 14 that calculates a distance to the subject on the basis of a transmission time of reflection light; and an image processing unit 15 that creates a distance image of the subject on the basis of calculated distance data. The plurality of irradiation areas 3 onto which light from the light sources are irradiated are arranged to partially overlap only with the neighboring ones. The light emission control unit 12 individually turns on or off the light sources 11 or individually adjusts the emitted light amounts.

Abstract: A system and method for activating security mechanisms based at least in part on accelerometer-based dead reckoning wherein accelerometer data, reflecting acceleration in a local coordinate system of a device, is obtained from an accelerometer of a device. Movement of the device is determined based at least in part on the accelerometer data, and, based at least in part on whether the movement of the device exceeds a threshold value, a determination is made whether to change a current security state of the device. If it is determined to change the current security state of the device, the current security state of the device is changed to a new security state.

Abstract: A vehicle, a radar system for the vehicle, and method of driving the vehicle. A radar array having plurality of radar nodes is arranged along the vehicle. Each radar node includes a first transmitter at one end of the node, a second transmitter at a second end of the node and a plurality of receivers aligned between the first transmitter and the second transmitter. At least one of an aperture length of the nodes and a spacing between the nodes is a variable parameter. A processor activates a transmitter of the radar array to generate a test pulse, receive, at a receiver of the radar array, a reflection of the test pulse from an object, and determines an angular location of the object from the reflection of the test pulse. A trajectory of the vehicle can be changed using the determined angular location of the object.

Abstract: Various embodiments can measure a distance of an object. For achieving this, a first light source and a second light source can be configured to emit first light and a second light toward the object to illuminate the object. The emission of the first light and second light can be configured such that the two lights converge at a first point and diverge at a second point. An optical sensor can be used to capture a first image of the object illuminated by the first light, and capture a second image of the object illuminated by the second light. An image difference between the first image and the second image of the object can be determined. The distance of the object with respect to the first point can then be determined based on the image difference and a distance difference between the first point and the second point.

Abstract: Provided are a device and a method for inspecting a cylindrical member. During inspection of a cylindrical member, a degree of widthwise misalignment of a strip-shaped member wound around a molding drum is calculated by a control unit on the basis of detection data from a position sensor and position data of drum-widthwise end faces that are perpendicular to a drum axial center of the molding drum, and the widthwise misalignment of the strip-shaped member is determined to be inside or outside an allowable range on the basis of the calculation result.

Abstract: The present invention belongs to the field of communications technologies, and discloses a method and an apparatus for preventing a touchscreen misoperation. The method includes detecting whether an object exists within a preset distance facing a touchscreen of a mobile terminal and detecting light intensity of an environment in which the touchscreen is located. The method also includes detecting whether an angle between a plane on which the touchscreen is located and a horizontal plane falls within a preset angle range. Additionally, the method includes setting the touchscreen of the mobile terminal to a touch-disable mode if an object exists within the preset distance facing the touchscreen of the mobile terminal, the detected light intensity is less than preset intensity, and it is detected that the angle between the plane on which the touchscreen is located and the horizontal plane does not fall within the preset angle range.

Abstract: Disclosed is a laser light transceiver which is configured so as to include a polarization changing unit 2 for outputting a laser light beam outputted from a transmission light source 1 toward a direction corresponding to the polarization of the laser light beam while changing the polarization of the laser light beam with respect to time. As a result, the laser light transceiver can transmit a laser light beam, whose power is not decreased, in two eye directions without mechanically scanning with the laser light beam.

Abstract: A navigation device with distance detecting function can utilize a distance detecting mechanism to detect a distance relative to a working surface. The distance detecting mechanism includes a base, a connecting component, a feature unit and a detection unit. The connecting component partly protrudes from the base. The connecting component optionally contacts against or is spaced from the working surface to generate a distance variation relative to the base along an axial direction. The feature unit is disposed on the connecting component. The detection unit is connected to the base. The detection unit can detect parameter difference of the feature unit according to the distance variation of the connecting component relative to the base, so as to determine the distance between the working surface and a bottom of the base via the parameter difference.

Abstract: A method for determining a spatial relationship between an optoelectronic chip and an optical mount, the method may include temporarily filling, by a liquid, a gap formed between a lens of the optical mount and the optoelectronic chip, while the optical mount contacts the optoelectronic chip; inspecting an optical component of the optoelectronic chip through the lens and through the liquid that fills the gap; and determining the spatial relationship between the optoelectronic chip and the optical mount based on the outcome of the inspecting of the optical component.

Abstract: In one general aspect, a non-transitory computer-readable storage medium can be configured to store instructions that when executed cause a processor to perform a process. The process can include producing a segment of a laser signal where the segment of the laser signal has a duration, and producing a first reference signal based on the laser signal. The process can include calculating a first phase deviation corresponding with a first portion of the duration based on the first reference signal, and producing a second reference signal based on the laser signal. The process can include calculating a second phase deviation corresponding with a second portion of the duration based on the second reference signal, and calculating a phase deviation of the segment of the laser signal based on a combination of the first phase deviation and the second phase deviation.

Abstract: A distance measurement device according to one aspect of the present invention includes a photoelectric conversion device which includes a light receiving unit, a charge storage unit, a charge discharge unit, and a gate electrode, a controller which controls an irradiation timing of pulse light having a pulse width which is sufficiently shorter than response time of the light receiving unit to an object and performs control to generate control pulse voltages having at least two kinds of phases based on the irradiation timing and to apply it to the gate electrode, a charge reading unit which reads a first and second charges stored in the charge storage unit according to the applications of the respective control pulse voltages having two kinds of phases as a first and second electrical signals, and a calculation unit which calculates a distance to the object based on the first and second electrical signals.

Abstract: Embodiments are directed to increasing the accuracy in spatially local dimensioning systems. A pulse timer generates a sine wave, a cosine wave, a sine wave indexer, and a cosine wave indexer. An outgoing laser pulse transmission to an object and a return bounce back from the object are detected and the outgoing and return bounce back times recorded. The recorded times are used to determine weighted times for the sine and cosine waves. Both the distance and timing to the object are electronically determined.

Abstract: An exemplary embodiment of the present invention is such that an auto focus search section of a first actuator and an auto focus search section of a second actuator are different to thereby optimize an auto locus effect of the 3-D camera module.

Abstract: A coating device comprises a base, a mounting bracket mounted to the base by a driving mechanism, a coating unit which comprises a supporting rack mounted to the mounting bracket and a nozzle mounted to the supporting rack, and the coating device further comprises a detecting device mounted to the supporting rack, which detects information about a distance between the nozzle and a surface of the substrate to be coated and information about an obstacle on a substrate in an advancing direction of the nozzle; a control unit, which controls to keep the distance to be a preset distance based on the detected distance information, and which controls to stop operation of the nozzle where an obstacle is detected on a region on the surface of the substrate between the detecting device and the nozzle.

Abstract: In one example embodiment, a transmitter module includes a header electrically coupled to a chassis ground. First and second input nodes are configured to receive a differential data signal. A buffer stage has a first node coupled to the first input node and a second node coupled to the second input node. An amplifier stage has a fifth node coupled to a third node of the buffer stage and a sixth node coupled to a signal ground that is not coupled to the chassis ground. An optical transmitter has an eighth node coupled to a seventh node of the amplifier stage and a ninth node configured to be coupled to a voltage source. A bias circuit is configured to couple a fourth node of the buffer stage to a bias current source.

Abstract: A device for absolute distance measurement includes a first tunable light source for emitting a first wavelength light of a first tunable frequency modulated by a first modulating frequency and a second light source for emitting a second wavelength light of a second frequency modulated by a second modulating frequency. An optical coupler couples the first wavelength light and the second wavelength light into an interferometer cavity. An interferometer detector provides an interference measurement signal based on a detected interference pattern. A demodulator unit generates a first demodulation signal based on the interference measurement signal by demodulation with the first modulating frequency and a second demodulation signal based on the interference measurement signal by demodulation with the second modulating frequency. A computation unit computes an absolute distance by evaluating the first demodulation signal acquired during a sweep of the first tunable frequency and the second demodulation signal.

Abstract: A method of calculating, using a depth sensor, a distance excluding an ambiguity distance including outputting a modulated light signal output from a light source to an object, receiving the modulated light signal reflected by the object, calculating a distance between the light source and the object using the reflected modulated light signal input to photo gates in conjunction with demodulation signals supplied to the photo gates, the calculating including calculating, using the modulated light signal, at least one distance farther than a maximum measurable distance, and setting the at least one distance to be equal to the maximum measurable distance may be provided. A range of the distance farther than the maximum measurable distance can be determined according to a duty ratio of the modulated light signal.

Abstract: A method of efficient pocket detection is proposed. A wireless device determines whether it is in a transition state by using a plurality of low power-consuming sensors. The wireless device powers on a high power-consuming sensor if the device is in the transition state, or otherwise keeps the high power-consuming sensor off if the device is not in the transition state. The wireless device detects a current pocket mode of the device using the high power-consuming sensor if the device is in the transition state, or otherwise keeps a previous pocket mode if the device is not in the transition state.

Abstract: A method for measuring an object and a smart device are provided. The method includes: detecting by a smart device a track of a target object moving along the object to be measured; calculating a parameter of the track by the smart device according to the track; and acquiring a parameter of the object to be measured by the smart device according to the parameter of the track.

Abstract: The invention concerns in general the technical field of robotics and automation. Especially the invention concerns a structure for improving a shock tolerance of a robot or other positioning system. More specifically, the invention discloses a mounting element structure for increasing shock tolerance in a robot. The mounting element structure includes a first surface (201) and a second surface (202) towards a robot tool element, wherein the first and second surfaces (201; 202) are configured to be connected with a string assembly (203). The string assembly is configured to, under exposure of external force exceeding a predetermined level, to reduce the damage caused by the force by deforming the shape of the string assembly (203).

Abstract: A method for operating a time-of-flight camera including a time-of-flight sensor comprising an array of time-of-flight pixels with at least two integration nodes, wherein in a 3D mode the time-of-flight sensor and an illumination means are operated by means of a modulation signal and on the basis of the charges accumulated at the integration nodes distance values are determined, characterized in that in a power saving mode the time-of-flight sensor is operated with a control signal for motion detection, the frequency of which is lower than a lowest frequency of the modulation signal for a distance determination in the 3D mode, wherein an object motion is determined based on a differential value at the integration nodes is provided.

Abstract: Various embodiments of the present disclosure provide a clearance detection system and method using frequency identification. Generally, the clearance detection system of the present disclosure uses a fiber optic sensor to determine a distance between a target traversing through a target area and a wall of a housing or casing within which the target is rotating. In various embodiments, the clearance detection system does so by projecting a light field including multiple alternating and diverging illuminated and non-illuminated regions into the target area, collecting light reflected off of the target as the target traverses through the light field, generating an oscillatory signal based on the collected reflected light, identifying the dominant frequency of the signal, and using the dominant frequency to determine the distance.