46results about How to "Detect damage" patented technology

Disclosed is a particulate matter sensor unit. A particulate sensor apparatus may include an exhaust line through which exhaust gas flows, and a sensor that may be disposed at one side in the exhaust line and generates electrical charges when a particulate passes near vicinity of the sensor, wherein an electrode portion may be formed on a front surface of the sensor facing the particulate.

The invention relates to a portable dual wheel tire inner treads detection device and detection method. The detection device comprises a mini camera, a horizontal self-locking telescopic rod, a vertical self-locking telescopic rod, a locking pull rod, a support rod, a pen type electric push rod, an anti-slip rubber mat, and a terminal display device. The detection device positions through a wheelhub clamping device, collects images of dual wheel tire inner treads, and displays images on the terminal device through methods of wireless data transmission and image splicing, so as to rapidly detect whether the dual wheel tire inner treads are scratched or damaged. The detection device is suitable for detecting dual wheel tire inner treads of different sizes and models, completes detection rapidly and accurately, and breaks limitation that a traditional detection method cannot be used universally and has a detection dead zone. The device has a compact structure, is convenient to operate, can be carried along with a vehicle, and allows a car owner to detect dual wheel tire inner treads independently any time any place.

The invention relates to a testing machine for detecting child tricycle falling performance. The testing machine comprises a bottom portion framework, a front wheel disengaging mechanism, a back wheel disengaging mechanism, a child tricycle front wheel supporting plate, and a child tricycle back wheel supporting plate, wherein the right end of the bottom portion framework is connected with a right vertical aluminum section and the left end of the bottom portion framework is connected with a left vertical aluminum section through a lead screw and a nut. The middle portion of the right vertical aluminum section and the middle portion of the left vertical aluminum section are respectively connected with the back wheel disengaging mechanism and the front wheel disengaging mechanism through a right horizontal aluminum section and left horizontal aluminum section. The front wheel disengaging mechanism and the back wheel disengaging mechanism are connected with the child tricycle front wheel supporting plate and the child tricycle back wheel supporting plate. During a testing process, the child tricycle front wheel supporting plate and the child tricycle back supporting plate are stretched out through the movement of the front wheel disengaging mechanism and the back wheel disengaging mechanism, a cart is placed on the supporting plates which are stretched out, then a supporting plate of a front wheel and supporting plates of back wheels retract backwards at the same time, and due to the fact that the front wheel of a child tricycle and the back wheels of a baby tricycle are not supported, the three wheels fall onto the ground under the action of gravity, so that a once dropping test is achieved.

The invention discloses an improved film cutter which comprises a rectangular box, a sawtooth cutter, a press plate, a fixed support and a movable support. The sawtooth cutter is arranged on one side of the rectangular box, the press plate is installed at the bottom of the rectangular box and is installed at the bottom of the box through a screw and a spring washer, and the fixed support is fixedly installed at one end of the box. The improved film cutter is characterized in that the movable support is arranged on the other side of the box and is inserted between the bottom of the box, mandrels are installed on the movable support and the fixed support, alarming devices are installed on the mandrels, an infrared detection device is installed at the bottom of the rectangular box, a detecting lamp connected with the infrared detection device is arranged outside the rectangular box, and the rectangular box is provided with a movable upper cover. The improved film cutter has the advantages that the rectangular box is provided with the movable upper cover, and dust can be blocked; the alarming devices can remind people of timely replacing a roll type film when no film is available; and an ultraviolet detecting device is arranged in the rectangular box and can be used for detecting whether the film is damaged.

The invention discloses a detector for detecting the outline cross section shape of a bridge cable. The detector comprises a climbing robot, a transition sleeve, a rotary supporting seat, a rotary sleeve and a ranging sensor. The detecting object is a bridge cable cylinder, the climbing robot is located on the to-be-detected bridge cable cylinder, the transition sleeve is coaxially installed on the climbing robot by adopting two semicircles with same diameters, and the rotary supporting seat is fixedly connected with the transition sleeve. The rotary sleeve wraps a plurality of circumferentially distributed rolling columns through two semicircular structures, and the rotary sleeve can rotate positively and negatively around the bridge cable cylinder. The ranging sensor is located on the rotary sleeve and used for measuring the cross section shape of the bridge cable cylinder. The detector provided by the invention can conveniently penetrate through the to-be-detected cable and be arranged around the cable, and can rotate flexibly according to requirements. The detector fills in the gap that rotation of traditional cable movable detection cannot be achieved, cable damage detection meets the requirement for no blind angles, meanwhile cable damage detection is simple and reliable, and the detector has the great application value.

The invention provides a concrete crack detection method based on a ConcreteCrackSegNet model, and the method comprises the steps: inputting a picture shot by an unmanned aerial vehicle into the ConcreteCrackSegNet model for detection, and then outputting a predicted segmented concrete crack image through prediction; the ConcreteCrackSegNet model provided by the invention has the characteristics that the concrete crack color boundary is not obvious and the crack has certain continuity according to the concrete crack segmentation specific characteristics combined with the test, the actual concrete crack picture is collected, the picture set comprises various cracks which are not obvious, and the concrete crack color boundary is not obvious. The test fully considers the difficulty in distinguishing and the continuity of the crack. According to the method, the picture segmentation precision is high, and crack damage of the concrete structure can be detected, so that derivation of cracks of the concrete structure can be monitored in an early stage, support is provided for a scientific pre-maintenance decision provided by a maintenance department, and meanwhile, a large amount of manpower and material resources can be saved.

The invention discloses a wire and cable damage detection device. The device comprises a machine body, and a working cavity with a rightward opening is formed in the right side of the machine body; anisolation plate is arranged on the right side of the working cavity; a transmission cavity is formed below the working cavity; a pull-down cavity is formed below the transmission cavity; a pressure cavity is formed in the left side of the pull-down cavity, a power cavity is formed in the upper portion of the left side of the pressure cavity, a driving device is arranged in the power cavity, and therefore it can be guaranteed that in the detection process, the detection result is not affected by errors generated in the clamping process of a wire, and it can be guaranteed that tension receivedby the wire in the detection process is constant and accurate.