Abstract: An apparatus for estimating bio-information is provided. The apparatus includes: an ultrasound image acquirer configured to acquire ultrasound images of an object; a pressurizer configured to apply pressure to the object to occlude a blood vessel; and a processor configured to estimate a change in a diameter of the blood vessel using the ultrasound images acquired by the ultrasound image acquirer before and after an occlusion of the blood vessel, and estimate bio-information based on the estimated change in the diameter of the blood vessel.

Abstract: An apparatus for estimating bio-information may include an optical sensor comprising a light emitter disposed on a substrate, and a plurality of light receiving groups which are arranged on a plurality of concentric circles on the substrate, at different distances from the light emitter, respectively, and a processor configured to drive one of the plurality of light receiving groups that is selected based on a type of the bio-information to be estimated, and estimate the bio-information of an object based on optical signals detected by the driven light receiving group.

Abstract: An electronic device may include an optical sensor configured to emit a reference light to a reference object and detect the reference light reflected from the reference object during calibration, and emit a measurement light to a target object and detect the measurement light reflected from the target object during a measurement; and a processor configured to perform the calibration of the optical sensor while the electronic device is disposed to oppose or in contact with the reference object by controlling the optical sensor to emit and detect the reference light, and estimate bio-information based on a light quantity of the measurement light that is reflected from the target object by the optical sensor, and a light quantity of the reference light reflected from the reference object.

Abstract: An electronic device according to one aspect may include a main body, a sensor part disposed on one surface of the main body and configured to detect a light signal of an object, a first output interface comprising a light emitter disposed on one surface of the main body and configured to guide a user through a measurement operation by controlling a light-emitting mode of the light emitter, and a processor configured to control the first output interface according to the measurement operation and estimate the user's bioinformation based on a result of detecting the light signal by the sensor part.

Abstract: An apparatus for estimating bio-information may include an optical sensor comprising a light emitter disposed on a substrate, and a plurality of light receiving groups which are arranged on a plurality of concentric circles on the substrate, at different distances from the light emitter, respectively, and a processor configured to drive one of the plurality of light receiving groups that is selected based on a type of the bio-information to be estimated, and estimate the bio-information of an object based on optical signals detected by the driven light receiving group

Abstract: An electronic device may include: an optical sensor configured to emit a reference light to a reference object and detect the reference light reflected from the reference object during calibration, and emit a measurement light to a target object and detect the measurement light reflected from the target object during a measurement; a display; and a processor configured to: when the electronic device is placed on a charger and is in a charging state, perform the calibration of the optical sensor based on the reference light reflected from the reference object; control the display to output guide information for estimating bio-information according to progress stages of the measurement after charging of the electronic device; and estimate the bio-information based on a light quantity of the measurement light that is reflected from the target object, and a light quantity of the reference light reflected from the reference object.

Abstract: Disclosed is a gas injection apparatus which measures and displays a gas amount supplied to a radiosonde instrument. The gas injection apparatus includes: a body which includes an inlet port through which the gas is introduced from the storage tank, a flow passage through which the gas introduced from the inlet port flows, and an outlet port through which the gas passing through the flow passage is discharged; a valve which opens/closes the flow passage, and a flow meter which is installed in the body and is configured to measure and display the flow rate of the gas supplied to the instrument.

Abstract: Proposed is a vibration-proof hanger. According to one embodiment, the vibration-proof hanger includes a fitting bracket having a fixed plate configured to allow a first surface to be integrally fixed to an artificial structure, wherein a hinge unit is provided on a second surface of the fixed plate, a tilting arm unit configured to allow one end to be rotatably fixed to the hinge unit to be tilted, and a vibration-proof unit configured to be coupled to the tilting arm unit to absorb vibration transferred to the tilting arm unit or rotate to prevent vibration of the tilting arm unit.

Abstract: A biological component measuring apparatus may include: a first light source configured to emit a first light of a first wavelength range onto an object; a second light source configured to emit a second light of a second wavelength range onto the object, the second wavelength range being different from the first wavelength range; a detector configured to detect the first light and the second light which are scattered from the object; and a processor configured to determine a scattering coefficient based on the detected first light, obtain blood vessel depth information based on the detected second light, and measure a biological component by correcting the scattering coefficient based on the blood vessel depth information.

Abstract: Disclosed is a gas injection apparatus which measures and displays a gas amount supplied to a radiosonde instrument. The gas injection apparatus includes: a body which includes an inlet port through which the gas is introduced from the storage tank, a flow passage through which the gas introduced from the inlet port flows, and an outlet port through which the gas passing through the flow passage is discharged; a valve which opens/closes the flow passage, and a flow meter which is installed in the body and is configured to measure and display the flow rate of the gas supplied to the instrument.

Abstract: Disclosed herein is a method and apparatus for producing hydrogen and oxygen from water, more particularly, for decomposing water molecular bonds using resonant waves. The produced hydrogen gas may be used as a fuel, and the released oxygen gas may be used as an oxidant.

Abstract: An apparatus for measuring bio-information may include a pulse wave sensor that may measure a pulse wave signal from an object in contact with a measurement surface. The apparatus may include a force sensor that may measure a contact force between the pulse wave sensor and the object. The apparatus may include a fastener configured to fasten the pulse wave sensor to an electronic device such that the pulse wave sensor is rotatable around a center axis in a length direction of the pulse wave sensor. The apparatus may include a processor that may determine a direction in which a measurement region of the pulse wave signal or the measurement surface of the pulse wave sensor is oriented, select a measurement mode from among a plurality of measurement modes, and estimate bio-information of the object.

Abstract: An electronic device according to an aspect of the present disclosure includes a touch screen. The electronic device includes a communication interface that may receive, from a touch pen, a pulse wave signal of a user which is measured from a finger of the user by the touch pen while the touch pen is placed on the touch screen. The electronic device includes a processor that may determine whether a measurement posture of the user is appropriate based on whether the finger touches the touch screen, and in response to determining that the user's measurement posture is appropriate, estimate bio-information of the user based on the received pulse wave signal.

Abstract: There is provided with a precipitation meter which includes: an upper receiver in which an upper heating unit is embedded to provide heat to an upper surface of the upper receiver to prevent snow from being accumulated thereon, wherein the upper receiver is comprised of a first inner side surface forming inner space for collecting water and a first outer side surface which is an opposite surface of the first inner side surface; a lower receiver with a funnel-shaped part, positioned underneath the upper receiver; a siphon, positioned under the center area of the funnel-shaped part; a tipping bucket unit for receiving the waterdrops from the siphon; a precipitation calculation unit for receiving information on the seesawing movement of the tipping bucket unit and calculating an amount of precipitation by referring to the seesawing movement; and a drainage unit for allowing the waterdrops to be drained out.

Abstract: An apparatus for estimating bio-information includes a pulse wave sensor configured to measure a pulse wave signal from an object, for a predetermined period of time, a processor configured to extract DC components of the pulse wave signal measured for the predetermined period of time, normalize the extracted DC components, based on at least one of the extracted DC components of the pulse wave signal measured at a time when a reference force is applied by the object to the pulse wave sensor, and estimate the bio-information, based on the normalized DC components.

Abstract: There is provided with a precipitation meter which includes: an upper receiver in which an upper heating unit is embedded to provide heat to an upper surface of the upper receiver to prevent snow from being accumulated thereon, wherein the upper receiver is comprised of a first inner side surface forming inner space for collecting water and a first outer side surface which is opposite surface of the first inner side surface; a lower receiver with a funnel-shaped part, positioned underneath the upper receiver; a siphon, positioned under the center area of the funnel-shaped part; a tipping bucket unit for receiving the waterdrops from the siphon; a precipitation calculation unit for receiving information on the seesawing movement of the tipping bucket unit and calculating a value of precipitation by referring to the seesawing movement; and a drainage unit for allowing the waterdrops to be drained out.

Abstract: A shape measurement device includes a stylus configured to contact an object to be measured; a measurement arm that supports the stylus to allow the stylus to contact the object to be measured; a measurement arm part that supports the measurement arm; and a measurement arm support that supports the measurement arm part to allow the stylus to move along an outer shape of the object to be measured. The measurement arm support includes a support body provided with a movement rail formed on a top surface thereof. A body coupling block is coupled to the movement rail to move along the movement rail and is detachably coupled to the measurement arm part. The measurement arm portion includes a body provided with a block accommodation groove to accommodate the body coupling block and a position-fixing member coupled to a lower surface of the body defining the block accommodation groove.

Abstract: A bio-signal measuring apparatus may include: a finger contact surface configured to be in contact with a finger of a user; an optical sensor configured to be disposed underneath the finger contact surface and sense a light when the light is reflected from the user, and a textured area formed on the finger contact surface at a boundary of the optical sensor, and configured to provide a texture different from a texture of a remaining area of the finger contact surface other than the textured area, so as to allow the user to feel a tactile sensation from the textured area when the finger is in contact with the finger contact surface.

Abstract: An apparatus for non-invasively measuring bio-information is provided. The apparatus includes a plurality of light sources configured to emit light to a first region and a second region of an object, a detector configured to detect a first scattered light signal from the first region and a second scattered light signal from the second region and output a first electrical signal corresponding to the first scattered light signal and a second electrical signal corresponding to the second scattered light signal, and a processor configured to correct the first electrical signal based on the second electrical signal and measure bio-information based on a correction result.

Abstract: The present invention relates to a shape measurement apparatus comprising: a driving body 130; a measurement arm part 110 having a stylus 111 coming into contact with an object to be measured, and an arm 113 for supporting the stylus 111 so that the stylus 111 comes into contact with the object to be measured; a measurement arm support part 120 coupled to an end of the arm 113; a pivot 121 for rotatably supporting the measurement arm support part 120 with respect to the driving body 130; and an actuator part 140 for controlling the measurement arm support part 120 to rotate up and down with respect to the pivot 121 so that the stylus 111 moves along the object to be measured.