Abstract: A system for sensing medicament delivery and transmitting an operation modification signal having at least two separable components is disclosed. The system includes a flow sensor having an inlet to couple to a fluid source, an outlet for delivering fluid from the fluid source to a patient, at least one sensor to characterize at least one attribute of the fluid, and at least one pin in in electrical communication with the sensor. The system includes a second component having a base having a contact, a controller in electrical communication with the contact that generates an operation modification signal in response to an attribute matching a condition specified by a rule, a transmitter for transmitting the operation modification signal to a device, the operation modification signal, when received by the device, causing the device to modify at least one operating parameter, and a cross-component electrical circuit.

Abstract: A capacitive level gauge assembly for a pressurized or liquefied gas container comprises a body with a base capable of being fitted in an opening of said container and an electrical circuit arranged in the body; electrode-carrying means are fitted in leakproof manner in said body and connected to said electrical circuit, said electrode-carrying means being configured to support two electrodes fixedly with an annular measurement space therebetween. The electrode-carrying means comprise a metallic support fitted in leakproof manner in the valve body and electrically insulated therefrom, the first electrode being fixed to said metallic support, and the metallic support being connected to the electrical circuit. The metallic support comprises at its free end a coupling means for the first electrode.

Abstract: Described is a method and system for a level measurement. An echo curve is analyzed, and both the level and the moisture content of the stored material is determined therefrom. The level measuring instrument works in such an energy-saving manner that it is sufficient to supply the instrument with power using a 4 . . . 20 mA two-wire conductor loop that is also used to transmit at least some of the measured values.

Abstract: An out-of-product alarm process includes initiating an out-of-product check by sending a signal to a controller from an optical sensor assembly connected to a fluid delivery medium for delivering a product to a fluid dispensing site, performing an out-of-product check, running an alarm cycle with the controller after receipt of an out-of-product signal, and executing a corrective action. Performing the out-of-product check includes directing light into the fluid delivery medium, generating a detector output based on detected light within the fluid delivery medium, determining an out-of-product state within the fluid delivery medium based on a comparison of the detector output to an out-of-product threshold, starting an out-of-product timer, when the out-of-product state is determined, and determining an out-of-product event when the out-of-product timer reaches a threshold out-of-product time period.

Abstract: A liquid-level sensing instrument for determining the level of a liquid in a container or vessel such as a laboratory tube in a rack or a well in a well plate with the container having an acoustically transparent top opening to direct ultrasonic signals to the liquid surface and receive reflected signals where the transceiver sensor instrument is constructed with a piezoelectric focusing sensor that has a concave focusing surface for focusing ultrasonic signals through the opening to the liquid surface in a selected container particularly a container in a group of containers and receiving reflected signals for processing.

Abstract: A content fill level sensor is disclosed. The sensor includes a transmitter located proximal to a portion of a container cover that is configured to engage an opening of a container. The sensor also includes a waveguide extending from the transmitter such that the waveguide includes a distal end that is configured to be located within an interior of the container when the container cover engages the container.

Abstract: A device for measuring weight on board may include a sensor mounter coupled to a shackle, a first motor mounted to have a same rotation center as a first rotation center of the shackle being connected to the vehicle body, a second motor mounted to have a same rotation center as a second rotation center of the shackle being connected to an eye of the spring, a first angle sensor rotating by receiving torque of the first motor, and a second angle sensor rotating by receiving torque of the second motor, in which a rotation angle of the shackle about the first rotation center may be measured by the first angle sensor, and a rotation angle of the shackle about the second rotation center may be measured by the second angle sensor, and weight on board may be measured depending on variation of the rotation angle of the shackle.

Abstract: A method and system for removing and accounting for scrap removed from a facility by providing a plurality of collection bins for one or more customers to collect scraps, providing a weigh station having a scale to weigh the scrap collected, providing a computer to record and keep track of the total scrap collected by each customer, providing a plurality of waste bins to discard the scrap collected in the collection bin, and accounting for the total scrap collected for each customer on-site before the waste bins are removed for permanent disposal. The collection bins of each customer can be monitored using a tracking system, such as a tag and reader, GPS device, camera, and the like.

Abstract: Systems and methods are described that may provide audio information about an environment around a wearable device. Such audio information may be correlated with other biometric data to provide physiological information, e.g. regarding a wearer of the wearable device. For example, an illustrative method includes receiving an audio signal via a microphone of a wearable device and rectifying the audio signal with a peak detector. The method further includes amplifying the rectified signal with a logarithmic amplifier and causing an analog to digital converter (ADC) to sample the logarithmic signal. The method also includes causing the ADC to convert the sampled logarithmic signal to a digital output and storing the digital output in a memory of the wearable device. In some embodiments, the method includes transmitting the digital output to a computing device, which may correlate the digital output with other biometric data.

Abstract: A method includes receiving noise spectral information from a scale, analyzing the noise spectral information via circuitry to identify instances of noise with various magnitudes at multiple frequencies, ending a listening period, and providing the identified instances of noise to be displayed.

Abstract: A device and method for sensing including a sensor having a functional surface layer located to interact with a material to be sensed, the sensor having an output that produces a signal responsive one or more of inertia, stiffness, acceleration, pressure, radiation, chemical compounds, and biological compounds; and further including electronics including: an input coupled to the sensor to receive a first signal therefrom; and a non-linearity provider that applies one or more non-linear operations to the input signal to generate a non-linear second signal.

Abstract: An imaging device includes a detector array and an aperture disposed along an optical path, with an array of filter elements disposed in the optical path therebetween. The detector array has a plurality of detector elements that are sensitive to a wavelength spectrum of interest, such as, for example, the visible spectrum and/or the infrared (IR) spectrum. Each filter element is configured to filter out energy within the wavelength spectrum of interest that is in a wavelength band of interest to form filtered energy within the wavelength spectrum of interest that is outside the wavelength band of interest. The filtered energy is passed by each filter to at least one corresponding detector element, which generates one or more detector values based on the received energy. The detector values may be processed to determine an intensity value for the wavelength band of interest.

Abstract: A beam delivery technology for high power laser systems, like laser peening systems, for work pieces which may have compound curvatures, includes placing an optical assembly having a receiving optic, beam formatting optics and a scanner mounted thereon, in a position to receive laser pulses from a laser source and within an operating range of the process area. Polarized laser pulses are delivered to the receiving optic while the position of the optical assembly remains unchanged. The pulses proceed through the beam formatting optics to the scanner, and are direct to respective impact areas having nominal shapes and locations on the work piece. The scanning process includes for each laser pulse, setting direction, divergence, polarization, rotation and aspect ratio of the laser pulses output from the scanner, to control the polarization, shape and location on respective impact areas.

Abstract: A non-contact method of measuring an insertion loss of a DUT connector is disclosed. The DUT connector has a first ferrule with a first optical fiber and a first end face. The method utilizes a reference connector having a second ferrule with a second optical fiber and a second end face. The method includes: axially aligning the first and second ferrules so that the first and second end faces are confronting and spaced apart to define a gap with an axial gap distance d; measuring values of the insertion loss between the first and second optical fibers for different gap distances d>0; and estimating a value for the insertion loss for a gap distance of d=0 based on the measured values of the insertion loss when d>0.

Abstract: The present disclosure pertains to a light sensing system configured to determine an amount of ambient light exposure experienced by a subject. The present invention wirelessly exchanges light information between different wearable devices of the same user and/or between devices of different users. Local and/or central light profile databases are built-up by the system and are shared between the devices so that light data that is typical for a location at a specific time of day and year can be used to estimate current ambient light levels for situations in which no measurement can be taken.

Abstract: An image sensor may include one or more pixels having a charge steering structure that may selectively route charge from a photodiode to increase the dynamic range of the pixel. The charge steering structure may be a coupled gate structure that routes overflow charge to a voltage supply and to one or more integrating storage structures during an exposure period. The charge steering structure may be two integrating storage structures directly connected to the photodiode that each integrate charge generated by the photodiode in an alternating fashion during an exposure period. Storage structures and transistors within the charge steering structure may receive control signals, which may be asserted in a mutually exclusive manner. Pixels may also include a dual-gain structure, which may provide additional charge storage capacity.

Abstract: A wearable or attachable device comprising a UV sensor configured to provide user-specific burn rate times providing an indication to the user when they are exposing themselves to harmful levels of UV radiation.

Abstract: An optical sensor arrangement (10) comprises a light sensor (11), a current source (41), an analog-to-digital converter (12) and a switch (44) which selectively couples the light sensor (11) or the current source (41) to an input (14) of the analog-to-digital converter (12).

Abstract: To shorten the length of an electric wiring between a capacitor and a PD, and to improve high frequency characteristics. An optical module of the present invention includes a light receiving element disposed at such a position that light from an optical transmission path is received on a light receiving surface in a state that the light receiving surface faces the optical transmission path; a spacer jointed to the optical transmission path and to the light receiving element in such a manner that a gap between the optical transmission path and the light receiving element is kept at a predetermined distance that light from the optical transmission path is allowed to enter the light receiving surface; and a capacitor electrically connected to the light receiving element, and disposed along with the light receiving element on a surface of the spacer on the same side as that joined to the light receiving element.

Abstract: The circuit of detection of light radiation includes a photodetector. The photodetector is coupled to three capacitors by means of three switches. The capacitors are parallel mounted to form a capacitive load whose value of electrical capacity changes as a function of the openings/closures of the switches. This configuration allows to stabilize the voltage present on the output terminal in the detection circuit for a wider range of illumination sustained by photodetector.

Abstract: Integrated computational elements having alternating layers of materials may be problematic to configure toward mimicking some regression vectors. Further, they sometimes may be inconvenient to use within highly confined locales. Integrated computational elements containing a quantum dot array may address these issues. Optical analysis tools with an integrated computational element can comprise: an electromagnetic radiation source that provides electromagnetic radiation to an optical pathway; an integrated computational element positioned within the optical pathway, the integrated computational element comprising a quantum dot array having a plurality of quantum dots disposed at a plurality of set array positions; and a detector that receives the electromagnetic radiation from the optical pathway after the electromagnetic radiation has optically interacted with a sample and the integrated computational element.

Abstract: At least one light source is configured to emit at least one beam into a sample volume of an absorbing medium. In addition, at least one detector is positioned to detect at least a portion of the beam emitted by the at least one light source. Further, at least one beam modification element is positioned between the at least one detector and the at least one light source to selectively change at least one of (i) a power intensity of, or (ii) a shape of the beam emitted by the at least one light source as detected by the at least one detector. A control circuit is coupled to the beam modification element. Related apparatus methods, articles of manufacture, systems, and the like are described.

Abstract: A color sensor arrangement comprises a color sensor arranged to generate at least a first channel signal being indicative of a color of light incident on the color sensor. A processing unit is connected to the color sensor and arranged to generate a tuple of color signals by processing the at least first channel signal. A memory is connected to the processing unit and a control unit is connected to the processing unit and to the memory. Furthermore, the control unit is arranged to receive calibration data relating the tuple of color signals to a calibrated tuple of color signals and arranged to store said calibration data (M) by means of the memory. An interface is connected to the processing unit and comprises an interface terminal.

Abstract: An apparatus for optically analyzing a sample may include an imaging subsystem that images the sample, one or more analyzing subsystems that analyze the sample, a temperature control subsystem that controls a temperature of the atmosphere within the apparatus, a gas control subsystem that controls a composition of the atmosphere within the apparatus, and a control module that controls the various subsystems of the apparatus.

Abstract: A system and method of dynamically localizing a measurement of parameter characterizing tissue sample with waves produced by spectrometric system at multiple wavelengths and detected at a fixed location of the detector of the system. The parameter is calculated based on impulse response of the sample, reference data representing characteristics of material components of the sample, and path lengths through the sample corresponding to different wavelengths. Dynamic localization is effectuated by considering different portions of a curve representing the determined parameter, and provides for the formation of a spatial map of distribution of the parameter across the sample. Additional measurement of impulse response at multiple detectors facilitates determination of change of the measured parameter across the sample as a function of time.

Abstract: Spectrometers and methods for determining the presence or absence of a material in proximity to and/or combined with another material are provided. In one particular example, a spectrometer is provided that includes a light source, a detector and an optical system. In this implementation, the light source is configured to provide an excitation incident beam. The detector is configured to detect a spectroscopy signal. The optical system is configured to direct the excitation incident beam toward a sample at a non-zero angle from a zero-angle reference. The optical system is further configured to receive a spectroscopy signal from the sample and provide the spectroscopy signal to the detector. The detector is configured to remove a spectral interference component of the spectroscopy signal.

Abstract: A housing assembly includes a base and a front assembly assembled with the base. The base includes a bottom and a sidewall that surrounds a peripheral edge of the bottom, and the front assembly is configured to engage with the sidewalls and close an open end of the base. The front assembly includes a latch that protrudes inward from an inner surface, and a spring-biased cam is rotatably supported on the base. The cam includes a cam surface that is engaged with the latch in such a way that rotation of the cam about the rotational axis results in a translation of the front assembly relative to the base in a direction parallel to the cam rotational axis. The cam is manually actuated using a tool.

Abstract: Apparatus and methods of processing substrates include a detector manifold to detect radiation from proximate a processing area in a chamber body; a radiation detector optically coupled to the detector manifold; and a spectral multi-notch filter. Apparatus and methods of processing substrates include detecting transmitted radiation from an emitting surface of a substrate in a chamber body; conveying at least one spectral band of the detected radiation to a photodetector; and analyzing the detected radiation in the at least one spectral band to determine an inferred temperature of the substrate.

Abstract: A temperature sensor includes a thermo-sensitive element, a pair of element electrode wires electrically connected to the thermo-sensitive element, a sealing body covering the thermo-sensitive element and part of the pair of the element electrode wires, and a tablet formed with a pair of insertion holes through which the pair of the element electrode wires pass. An air bubble is formed at a position within the glass sealing body on a distal end side opposite to the tablet. The center of the air bubble is located within the outline of the thermo-sensitive element when viewed in the axial direction of the pair of the element electrode wires.

Abstract: A temperature-detecting device includes a thermally conductive sheet, a heat-generating body thermally connected to a first end portion of the thermally conductive sheet, and a temperature-detecting element thermally connected to a second end portion of the thermally conductive sheet. This temperature-detecting device is also provided with thermally insulating layers on the top and bottom faces of the thermally conductive sheet between the first and second end portions thereof.

Abstract: A device including: a paper film including cellulose fibers, a first surface, and a second surface opposite to the first surface; and at least one first heat-sensitive resistor having a negative temperature coefficient, the first heat-sensitive resistor including a first electrode arranged on the first surface, a second electrode arranged on the second surface, the first and second electrodes having at least first portions facing each other, the first heat-sensitive resistor further including the portion of the paper film arranged between the first portions facing each other. The invention also relates to a method of manufacturing such a device.

Abstract: A thermomagnetic sensor includes a thermomagnetic probe that includes a ferromagnetic material having a temperature-dependent magnetic permeability characterized by a maximum magnetic permeability value at a temperature below a Curie temperature of the ferromagnetic material. The thermomagnetic sensor further includes an alternating magnetic field source to produce an alternating magnetic field in a vicinity of the thermomagnetic probe to facilitate a measurement of the temperature-dependent magnetic permeability as function of temperature remotely using a thermomagnetic effect. A predetermined relationship between the temperature-dependent magnetic permeability and temperature in a range between the maximum magnetic permeability value and the Curie temperature provides a measurement of a temperature local to the thermomagnetic probe.

Abstract: A nanoparticle sensor apparatus includes a silicon-based nanoparticle having a centrosymmetric crystalline structure. A lanthanide atom embedded within the silicon-based nanoparticle provides light emission when the sensor apparatus undergoes pressure loading. This sensor apparatus may be encapsulated in a polymer matrix to form a nanoparticle sensor matrix apparatus which may be located on or in a structure. To measure the pressure on such a structure, a UV light source illuminates the sensor apparatus. An optical emission detector detects the intensity of light emitted from the sensor in response, while a processor correlates that intensity to the pressure loading.

Abstract: Systems and a method for measuring at least one mechanical force in a stator of an electrical machine are provided. The stator of the electrical machine includes a multiple stacked metal lamina. At least one fiber Bragg grating (FBG) element is placed between two of the lamina, such as in a rotor-facing tooth of the lamina.

Abstract: A torque estimating system for a synchronous electric motor having a permanent magnet includes: a superimposing unit configured to superimpose a voltage or current of a frequency different from a frequency of a fundamental wave driving the synchronous electric motor on at least a d-axis of the synchronous electric motor; a magnet temperature estimating unit configured to estimate a temperature of the permanent magnet from the superimposed voltage or current and a current or voltage obtained by the superimposing; and a torque estimating unit configured to estimate a torque of the synchronous electric motor from the estimated temperature of the permanent magnet.

Abstract: A sensor device includes a base element extending in an axial direction and a first magneto elastic active region representing a first longitudinal section of a surface of the base element. The first longitudinal section extends in the axial direction and is magnetized in a first circumferential direction. The sensor device further comprises a first magnetic field sensor overlapping with the first longitudinal section, and a second magnetic field sensor disposed at a distance with respect to the first magnetic field sensor along the axial direction and overlapping with the first longitudinal section.

Abstract: A coke extrusion force estimation method includes: measuring irregularities on an inner wall surface of a carbonization chamber to acquire an oven wall profile; estimating an outer shape of a coke produced in the carbonization chamber based on the oven wall profile; defining an active state for a side surface position of the coke at which a coke width is smaller than an oven width and defining a passive state for a side surface position of the coke at which a coke width is larger than an oven width based on the oven wall profile and the estimated outer shape; and calculating oven wall friction force for each side surface position of the coke using a previously set apparent Young's modulus of the coke in accordance with definition of the active state or the passive state to estimate the extrusion force based on the oven wall friction force.

Abstract: A method for determining a mass of an implement attached to a vehicle includes providing a powerlift having at least one upper link and one lower link, a support structure, and the implement. The method also includes defining an angle (?) between the upper link and a vehicle horizontal line, an angle (?) between the lower link and a vehicle horizontal line, an angle of inclination (?) of a vehicle horizontal line relative to a terrestrial horizontal line, a path (AK) that represents a connection along the lower link between the support structure and the implement, and a force (FE) impinging on a connection between the upper link and the implement and acting along the upper link. The mass is determined as a function of at least one of the angle (?), the angle (?), the angle of inclination (?), the path (AK), and the force (FE).

Abstract: An apparatus for an imbalance test includes a strain measurement module that measures a strain voltage across terminals of a strain gauge. The strain voltage is representative of an amount of force on the strain gauge. The apparatus includes a test measurement module that measures a test voltage across the terminals of the strain gauge while a test resistor is connected in parallel with a resistor of the strain gauge. The test resistor is connected while the test measurement module measures the test voltage and is disconnected while the strain module measures strain voltage. The apparatus includes an average module that calculates an average strain voltage from two strain voltage measurements. The strain voltages are measured preceding and after the test voltage measurement. The apparatus includes a difference module that determines a difference voltage. The difference voltage is a difference between the average strain voltage and the test voltage.

Abstract: A pressure sensor able to value touch pressures at oblique angles includes a substrate base, a deformable substrate disposed on the substrate base, and a carbon nanometer layer disposed on the deformable substrate. A cover plate is disposed on the carbon nanometer layer, and two flexible power circuit boards electrically connect the carbon nanometer layer to the substrate base. The device includes a processor. The substrate base includes a substrate and a pad. The pad is located between the substrate and the deformable substrate. The deformable substrate and the cover plate are made of elastic materials. The processor calculates lateral pressures based on the resistance variation value due to the vertical deformation of the carbon nanometer layer and the capacitance variation value between the carbon nanometer layer and the pads when an external physical resistance is experienced as a force applied to the cover plate.

Abstract: An air pressure sensing system including a first sensing unit and a second sensing unit is provided. The first sensing unit includes a substrate, a diaphragm, and a supporting member. The substrate has a cavity connected with an exterior environment. The diaphragm is movably and deformably disposed at the substrate and suspended in the cavity. An electrostatic force is provided to the substrate and the diaphragm to move the diaphragm, such that a portion of the base, the supporting member and the diaphragm are contacted with each other and a closed space is formed therebetween in the cavity. The closed space and the exterior environment are divided by the diaphragm, and the diaphragm is deformed due to an air pressure difference between the closed space and the exterior environment. An air pressure sensing method is also provided.

Abstract: In a rim replacing method for a tire testing machine of the present invention, one pair of the rims satisfying predetermined conditions relative to a test tire are selected, from among a pair of rims attached to the upper and lower spindles and plural pairs of rims loaded in a rim replacing device, as object rims, and rim replacement is performed if the rims loaded in the rim replacing device are selected as the object rims, so that the nonuniformity of rim can be suitably measured. The predetermined conditions include a condition in which a diameter of bead portions of the tire conveyed into the tire testing machine corresponds to a diameter of the object rims, and a condition in which a width of the bead portions of the tire conveyed into the tire testing machine falls within a range in which a space between the object rims is adjustable.

Abstract: A leak test arrangement (1) for testing a structural component (2) or a closed package/object (2?+21?, 2?*) with a wall to be tested for tightness, including: a test chamber (3) in which the structural component (2) or the package/the object (2?+21?, 2?) is arranged during the leak testing, a test gas space (4) which is formed on a first side of the wall of the structural component (2) and of the test chamber (3) or which corresponds to the interior of the package/of the object (2?, 2?*), a testing space (5) which is formed on a second side of the wall of the structural component (2) and of the test chamber (3) or is formed between the wall of the package/object (2?+21?, 2?*) and the test chamber (3), a test gas supply (6) for supplying compressed air (DL) and/or a test gas (TG) into the testing space (5), a test gas measuring arrangement (7) for measuring or detecting the test gas (TG) in the testing space (5) with a sensor system (72) and a testing space vacuum arrangement (51) for evacuating the testing sp

Abstract: Systems and methods for monitoring aerostructures are provided. In various embodiments, a method for monitoring an aerostructure may include: receiving a signal from a pressure sensor, the pressure sensor located downstream from the aerostructure; performing a time frequency analysis on the signal to calculate a power level over a range of frequencies; monitoring the power level over the range of frequencies; and determining a susceptibility to a flutter condition based on the monitoring the power level.

Abstract: A seeding device 1 includes a seeder 3 that jets out a jet flow 2 containing oil particles and gas therein, and a tubular body 5, 23 surrounding the jet flow 2. The distance X from a starting end S of the jet flow 2 to the tip end T of the tubular body 5, 23 is set so that the progressing rate of atomization of the oil particles at the tip end T of the tubular body 5, 23 is a predetermined rate or less.

Abstract: An optical apparatus includes a diffractive optical element (DOE), having at least one optical surface, a side surface, which is not parallel to the at least one optical surface of the DOE, and a grating, which is formed on the at least one optical surface so as to receive and diffract first radiation that is incident on the grating. The apparatus further includes at least one secondary radiation source, which is configured to direct second radiation to impinge on the side surface, causing at least part of the second radiation to propagate within the DOE while diffracting internally from the grating and to exit through the side surface. The apparatus also includes at least one radiation detector, which is positioned so as to receive and sense an intensity of the second radiation that has exited through the side surface.

Abstract: In some embodiments, a distributed nondestructive inspection method for slickline cable structural defect detection transmits a light pulse along an optical waveguide in the slickline cable. A reflected light signal is 5 received from the optical waveguide in response to the light pulse. Defects can then be determined in the slickline cable based on variations in scattering intensity, phase shift, specific spectral signature, power spectral density, strain amplitude, and/or transmission loss of the reflected light signal as compared to the light pulse.

Abstract: According to examples, a Brillouin and Rayleigh distributed sensor may include a first laser source to emit a first laser beam, and a second laser source to emit a second laser beam. A photodiode may acquire a beat frequency between the two laser beams. The beat frequency may be used to maintain a predetermined offset frequency shift between the two laser beams. A modulator may modulate the first laser beam. The modulated first laser beam is to be injected into a device under test (DUT). A coherent receiver may acquire a backscattered signal from the DUT. The backscattered signal results from the modulated first laser beam injected into the DUT. The coherent receiver may use the second laser beam as a local oscillator to determine Brillouin and Rayleigh traces with respect to the DUT based on the predetermined offset frequency shift.

Abstract: A reliability range is determined for a parameter of a component in a machine subjected to life reducing loads during operation, comprising the steps of: acquiring, for each of a plurality of load sessions, at least one parameter value for said component; generating a distribution pattern containing said parameter values for the plurality of load sessions; assigning a reliability range for the distribution pattern, wherein parameter values outside said reliability range are considered as being unrealistic; analyzing the parameter values outside the reliability range to determine which of said parameter values outside the reliability range are confirmed to be unrealistic; and adjusting the reliability range if a ratio between the confirmed unrealistic parameter values and the considered unrealistic parameter values is outside a further range being predetermined for the ratio.

Abstract: The present disclosure is directed to an integrated electrostatic sensor for detecting dust and/or other airborne particulates in an engine, e.g. in an aircraft gas turbine engine. The electrostatic sensor includes an outer housing having a sensing face, an electrode configured within the outer housing adjacent to the sensing face, and an amplifier configured with the electrode. The electrode contains a plurality of electrons configured to move as charged dust particles flow past the sensing face. Thus, the amplifier is configured to detect a dust level as a function of the electron movement. The electrostatic sensor also includes a circuit board configured within the outer housing and electrically coupled to the amplifier. Thus, the circuit board is configured to send the one or more signals to a controller of the engine indicative of the dust level.