Abstract: A magnetic body inspection apparatus includes a magnetic field application unit configured to apply a magnetic field to a long material including a magnetic body to be inspected, a detector configured to excite, in a longitudinal direction of the long material, magnetization of the magnetic body, the detector being configured to acquire a detection signal based on the magnetic field of the magnetic body that has been excited, and a detection apparatus body including the magnetic field application unit and the detector, the detection apparatus body being configured to be attachable to the long material in a short-side direction of the long material.

Abstract: The magnetic material inspection device includes: a differential coil configured to detect a change in a magnetic field of a magnetic material and transmit a differential signal, the differential coil including a pair of receiving coils; a detection coil configured to detect the change in the magnetic field of the magnetic material and transmit a detection signal; and a controller configured to detect a state of the magnetic material based on the differential signal of the differential coil and detect the state of the magnetic material based on the detection signal of the detection coil.

Abstract: A magnetic body inspection device (100) is a magnetic body inspection device for inspecting states of a plurality of magnetic bodies (W) by a total magnetic flux method that measures a magnetic flux inside the magnetic body (W). The device includes a plurality of detection coils (10) each for detecting the magnetic field of each of the magnetic bodies (W), an excitation unit (11) provided for the plurality of magnetic bodies (W), and a detection signal output unit (12) for outputting a detection signal based on the magnetic field of each of the magnetic bodies (W).

Abstract: A magnetic body inspection system includes a processing unit for extracting a feature amount from a measured damage waveform and determining the type of damage to a magnetic body based on a comparison between the extracted feature amount and a feature amount stored in advance in a storage unit.

Abstract: A magnetic body inspection device (100) is provided with a magnetic field application unit (1) configured to apply a magnetic field to a magnetic body (W) to be inspected in advance to rectify the magnitude and orientation of magnetization in the magnetic body (W), and a detection unit (2) configured to output a detection signal based on the magnetic field in the magnetic body to which the magnetic field application unit has been applied or a change in the magnetic field. The magnetic application unit includes magnets (11) arranged such that pole faces (Pf) of the same polarity are opposed to each other on both sides of the magnetic body.

Abstract: A magnetic body inspection system includes a processing unit for extracting a feature amount from a measured damage waveform and determining the type of damage to a magnetic body based on a comparison between the extracted feature amount and a feature amount stored in advance in a storage unit.

Abstract: A wire rope inspection device (100) includes a controller 21 configured or programmed to detect a state of a wire rope (W) based on a difference at substantially a same position between a first detection signal acquired by a differential coil (10) in a first measurement and a second detection signal acquired by the differential coil in a second measurement after the first measurement.

Abstract: The magnetic material inspection device includes: a differential coil configured to detect a change in a magnetic field of a magnetic material and transmit a differential signal, the differential coil including a pair of receiving coils; a detection coil configured to detect the change in the magnetic field of the magnetic material and transmit a detection signal; and a controller configured to detect a state of the magnetic material based on the differential signal of the differential coil and detect the state of the magnetic material based on the detection signal of the detection coil.

Abstract: A magnetic body inspection device (100) is provided with a detection unit (1) including a differential coil (12) and a detection signal acquisition unit (21). The differential coil (12) has at least a first receiving coil (121) formed of a planar coil and a second receiving coil (122) formed of a planar coil, the first receiving coil and the second receiving coil being differentially connected. The first receiving coil (121) and the second receiving coil (122) are arranged so that detection surfaces thereof are opposed to each other with a magnetic body (W) interposed therebetween.

Abstract: A wire rope inspection device (100) includes a controller 21 configured or programmed to detect a state of a wire rope (W) based on a difference at substantially a same position between a first detection signal acquired by a differential coil (10) in a first measurement and a second detection signal acquired by the differential coil in a second measurement after the first measurement.

Abstract: An optical system includes: a first lens group with negative refractive power at an object side of an aperture stop; a second lens group with positive refractive power at an image plane side of the aperture stop; and a third lens group with positive refractive power at the image plane side of the second lens group. The first lens group includes a first lens with negative refractive power and concave image plane side, a second lens of meniscus type, with negative refractive power, and convex image plane side, and a third lens with positive refractive power and convex object side. The second lens group includes a fourth lens with positive refractive power and convex image plane side; a fifth lens of meniscus type, with negative refractive power, and convex object side; and a sixth lens with negative refractive power and concave object side.

Abstract: This magnetic body inspection apparatus (100, 200, 300, 400) includes a magnetic field application unit (1) configured to apply a magnetic field in advance to a steel wire rope (W) and to adjust a magnetization direction of the steel wire rope (W), and is configured to detect a magnetic field change by a detector (2).

Abstract: A magnetic body inspection apparatus includes a magnetic field application unit configured to apply a magnetic field to a long material including a magnetic body to be inspected, a detector configured to excite, in a longitudinal direction of the long material, magnetization of the magnetic body, the detector being configured to acquire a detection signal based on the magnetic field of the magnetic body that has been excited, and a detection apparatus body including the magnetic field application unit and the detector, the detection apparatus body being configured to be attachable to the long material in a short-side direction of the long material.

Abstract: A magnetic body inspection device (100) is provided with a magnetic field application unit (1) configured to apply a magnetic field to a magnetic body (W) to be inspected in advance to rectify the magnitude and orientation of magnetization in the magnetic body (W), and a detection unit (2) configured to output a detection signal based on the magnetic field in the magnetic body to which the magnetic field application unit has been applied or a change in the magnetic field. The magnetic application unit includes magnets (11) arranged such that pole faces (Pf) of the same polarity are opposed to each other on both sides of the magnetic body.

Abstract: A magnetic body inspection device (100) is a magnetic body inspection device for inspecting states of a plurality of magnetic bodies (W) by a total magnetic flux method that measures a magnetic flux inside the magnetic body (W). The device includes a plurality of detection coils (10) each for detecting the magnetic field of each of the magnetic bodies (W), an excitation unit (11) provided for the plurality of magnetic bodies (W), and a detection signal output unit (12) for outputting a detection signal based on the magnetic field of each of the magnetic bodies (W).

Abstract: An optical system includes: a first lens group with negative refractive power at an object side of an aperture stop; a second lens group with positive refractive power at an image plane side of the aperture stop; and a third lens group with positive refractive power at the image plane side of the second lens group. The first lens group includes a first lens with negative refractive power and concave image plane side, a second lens of meniscus type, with negative refractive power, and convex image plane side, and a third lens with positive refractive power and convex object side. The second lens group includes a fourth lens with positive refractive power and convex image plane side; a fifth lens of meniscus type, with negative refractive power, and convex object side; and a sixth lens with negative refractive power and concave object side.

Abstract: This magnetic body inspection apparatus (100, 200, 300, 400) includes a magnetic field application unit (1) configured to apply a magnetic field in advance to a steel wire rope (W) and to adjust a magnetization direction of the steel wire rope (W), and is configured to detect a magnetic field change by a detector (2).

Abstract: A refrigeration cycle 1 is constituted by joining at least a compressor 2, a condenser 3, a decompression and expansion device 4, and an evaporator 5 to each other by a pipe 6. The condenser 3 is formed of a condenser with a supercooling part including a condensing part 7 and a supercooling part 8. The refrigeration cycle 1 further includes an internal heat exchanger 25. A rate at which the supercooling part 8 occupies with respect to the whole condenser 3 is set to a value which falls within a range of 3% to 9% when the heat exchange efficiency of the internal heat exchanger 25 falls within a range of 25% to 75%.

Abstract: A refrigeration cycle 1 is constituted by joining at least a compressor 2, a condenser 3, a decompression and expansion device 4, and an evaporator 5 to each other by a pipe 6. The condenser 3 is formed of a condenser with a supercooling part including a condensing part 7 and a supercooling part 8. The refrigeration cycle 1 further includes an internal heat exchanger 25. A rate at which the supercooling part 8 occupies with respect to the whole condenser 3 is set to a value which falls within a range of 3% to 9% when the heat exchange efficiency of the internal heat exchanger 25 falls within a range of 25% to 75%.

Abstract: A zoom lens system consists, in order from an object side to an image-forming side, of a first negative lens group G1, a second positive lens group G2, and a third positive lens group G3. The first lens group G1 consists of one negative lens and one positive lens, the second lens group G2 consists of a cemented lens composed of a positive lens and a negative lens, and one meniscus lens that is concave on the image-forming side, the third lens group G3 consists of a single positive lens, and a combined focal length f2 of the second lens group, a focal length Lf23 of the meniscus lens of the second lens group, a combined focal length fw of the zoom lens system at a wide angle end, a combined focal length f3 of the third lens group, a radius of curvature Ro of an object side surface of the positive lens in the cemented lens, and a radius of curvature Ri of an image-forming side surface of the positive lens in the cemented lens satisfy the following conditions 0<|f2/Lf23|<0.3 ?2.0<Ri/Ro<?1.0 0.