Abstract: A multifunctional cup handle includes a cup body. An upper portion of an outer side of a wall of the cup body is provided with a cup protrusion. A fixed shaft is provided on the cup protrusion. An upper end of a bending handle is provided with a handle shaft hole. The handle is sleeved on the fixed shaft. A locking device is provided on the fixed shaft. When a lower end of the bending handle is rotated to a highest position, the locking device locks the handle shaft hole, such that the lower end located directly above the cup body forms a lifting yoke of the cup body. When the lower end of the bending handle is rotated to a lowest position, the locking device locks the handle shaft hole, such that the bending handle at a side of the cup body forms a grip of the cup body.

Abstract: This invention relates to a system and method for synchronous measurement of pressure and deformation on the surface of a rotating blade. The system consists of a binocular camera, a light source, a digital delay generator, a photoelectric rotational speed sensor, a counter and PSP paint. The method involves the following steps. Firstly, prepare a PSP coating with marker points on the surface of the measured blade. Then, perform binocular calibration and obtain the phase-locked position. Control the opening of the shutter of the binocular camera and then trigger the light source to emit stroboscopic illumination at the phase-locked position. When the image has accumulated sufficient intensity, the counter breaks the circuit and the shutter is closed. Subsequently, substitute the calibration parameters of the binocular camera and the PSP, register and conduct three-dimensional reconstruction on the obtained images to obtain the three-dimensional pressure and deformation values on the blade surface.

Abstract: A multifunctional cup handle includes a cup body. An upper portion of an outer side of a wall of the cup body is provided with a cup protrusion. A fixed shaft is provided on the cup protrusion. An upper end of a bending handle is provided with a handle shaft hole. The handle is sleeved on the fixed shaft. A locking device is provided on the fixed shaft. When a lower end of the bending handle is rotated to a highest position, the locking device locks the handle shaft hole, such that the lower end located directly above the cup body forms a lifting yoke of the cup body. When the lower end of the bending handle is rotated to a lowest position, the locking device locks the handle shaft hole, such that the bending handle at a side of the cup body forms a grip of the cup body.

Abstract: A detection probe, a transmission apparatus, and a detection device are provided. The detection probe includes a housing, a detection mechanism, a driving mechanism, and a rope transmission mechanism. The housing defines an accommodation space. The detection mechanism is arranged on one end of the housing, and is configured to perform a detection function. The driving mechanism is arranged in the accommodation space, and is configured to output a force. The rope transmission mechanism is arranged in the accommodation space, and includes a rope set and a tension member. One end of the rope set is connected to the driving mechanism, and other end of the rope set is connected to the detection mechanism. The tension member is connected to the rope set, and is configured to apply a force to one end of the rope set away from the detection mechanism.

Abstract: A detection probe, a transmission device, and a detection instrument. The detection probe includes a housing defining a receiving space, a detection mechanism disposed on an end of the housing and configured to perform a detection function, a drive mechanism disposed in the receiving space and configured to output power, a rope transmission mechanism disposed in the receiving space and including a rope connected to the driving mechanism and the detection mechanism respectively and a reversing assembly including at least two reversing pulley groups arranged along an extension path of the rope, and a gear transmission mechanism disposed in the receiving space and connected to the driving mechanism and the rope transmission mechanism respectively, so as to receive the power output by the driving mechanism and transmit the power to the rope transmission mechanism.

Abstract: The disclosure discloses a global pressure acquisition system for a rotating model, including a CCD camera, a signal generator, a stroboscopic pulse LED light source, a photoelectric sensor, a preset counter, and a controller. The disclosure further discloses a global pressure acquisition method for a rotating model. The disclosure has the beneficial effects that, by using the non-contact measuring method disclosed by the present disclosure, a measured model and a flow field are not damaged, a submillimeter-level spatial resolution is achieved, it is ensured that the acquired PSP image of the rotating model is clear, and the signal to noise ratio of the image is increased.

Abstract: The disclosure discloses a measuring device for dynamic characteristics of pressure sensitive paint, including a PSP sample wafer, a dynamic pressure sensor, an oscilloscope, a light source, a photomultiplier tube, a bandpass filter, a loudspeaker, a power amplifier, and a signal generator. The disclosure further discloses a measuring method for dynamic characteristics of pressure sensitive paint. The disclosure has the following beneficial effects: by using the measuring device disclosed by the present disclosure, the continuous sinusoidal pressure wave with any frequency can be generated, and has the frequency precision that does not exceed 0.01 Hz, an optical path is not shielded, high stability is achieved, and the amplitude and phase characteristics of the pressure frequency of the PSP can be precisely captured.

Abstract: Surface pressure measurements on rotating models are important for flow phenomenon identification, understanding flow mechanisms and model aerodynamic design. The disclosure discloses a periodic pressure field measurement system based on the superposed lifetime of pressure sensitive paint, including pressure sensitive paint, a pulse light source, a camera, a synchronizer and a computer. A lifetime superposition method is disclosed in the disclosure for measuring periodic pressure fields of pressure sensitive paint.

Abstract: An ultrasound probe and an ultrasound imaging device are provided. In the ultrasound probe, a sound head assembly is accommodated in a housing, a base is accommodated in the housing, and a traction line is accommodated in the housing and connected to the sound head assembly. A traction mechanism is accommodated in the housing. In the traction mechanism, a traction wheel is disposed on the base and rotatable relative to the base for winding the traction line, so that the sound head assembly is driven to swing by the traction line. An elastic member is disposed on the traction wheel and fixedly connected to the traction line, so as to adjust the tension of the traction line when the elastic member elastically deforms.

Abstract: A multifunctional cup handle includes a cup body. An upper portion of an outer side of a wall of the cup body is provided with a cup protrusion. A fixed shaft is provided on the cup protrusion. An upper end of a bending handle is provided with a handle shaft hole. The handle is sleeved on the fixed shaft. A locking device is provided on the fixed shaft. When a lower end of the bending handle is rotated to a highest position, the locking device locks the handle shaft hole, such that the lower end located directly above the cup body forms a lifting yoke of the cup body. When the lower end of the bending handle is rotated to a lowest position, the locking device locks the handle shaft hole, such that the bending handle at a side of the cup body forms a grip of the cup body.

Abstract: Disclosed is a three dimensional mechanical ultrasound probe, which includes a transducer, a driving motor and a transmission mechanism configured to drive the transducer to reciprocatingly oscillate within a predetermined angle. The transmission mechanism includes a transducer base fixed and connected with the transducer, a face gear arranged on the transducer base, and a cylindrical gear meshed with the face gear. A rotating shaft of the face gear is positioned on the transducer base, and the face gear drives the transducer base to reciprocatingly oscillate. A transmission shaft is arranged on the axis of the cylindrical gear, and the transmission shaft is connected with the driving motor. The three dimensional mechanical ultrasound probe provided by the present application aims at simplifying the internal structure of the three dimensional mechanical ultrasound probe, reducing the internal installation complexity and improving motion stability.

Abstract: Surface pressure measurements on rotating models are important for flow phenomenon identification, understanding flow mechanisms and model aerodynamic design. The disclosure discloses a periodic pressure field measurement system based on the superposed lifetime of pressure sensitive paint, including pressure sensitive paint, a pulse light source, a camera, a synchronizer and a computer. A lifetime superposition method is disclosed in the disclosure for measuring periodic pressure fields of pressure sensitive paint.

Abstract: The disclosure discloses a measuring device for dynamic characteristics of pressure sensitive paint, including a PSP sample wafer, a dynamic pressure sensor, an oscilloscope, a light source, a photomultiplier tube, a bandpass filter, a loudspeaker, a power amplifier, and a signal generator. The disclosure further discloses a measuring method for dynamic characteristics of pressure sensitive paint. The disclosure has the following beneficial effects: by using the measuring device disclosed by the present disclosure, the continuous sinusoidal pressure wave with any frequency can be generated, and has the frequency precision that does not exceed 0.01 Hz, an optical path is not shielded, high stability is achieved, and the amplitude and phase characteristics of the pressure frequency of the PSP can be precisely captured.

Abstract: The disclosure discloses a global pressure acquisition system for a rotating model, including a CCD camera, a signal generator, a stroboscopic pulse LED light source, a photoelectric sensor, a preset counter, and a controller. The disclosure further discloses a global pressure acquisition method for a rotating model. The disclosure has the beneficial effects that, by using the non-contact measuring method disclosed by the present disclosure, a measured model and a flow field are not damaged, a submillimeter-level spatial resolution is achieved, it is ensured that the acquired PSP image of the rotating model is clear, and the signal to noise ratio of the image is increased.

Abstract: A detection probe, a transmission apparatus, and a detection device are provided. The detection probe includes a housing, a detection mechanism, a driving mechanism, and a rope transmission mechanism. The housing defines an accommodation space. The detection mechanism is arranged on one end of the housing, and is configured to perform a detection function. The driving mechanism is arranged in the accommodation space, and is configured to output a force. The rope transmission mechanism is arranged in the accommodation space, and includes a rope set and a tension member. One end of the rope set is connected to the driving mechanism, and other end of the rope set is connected to the detection mechanism. The tension member is connected to the rope set, and is configured to apply a force to one end of the rope set away from the detection mechanism.

Abstract: A detection probe, a transmission device, and a detection instrument. The detection probe includes a housing defining a receiving space, a detection mechanism disposed on an end of the housing and configured to perform a detection function, a drive mechanism disposed in the receiving space and configured to output power, a rope transmission mechanism disposed in the receiving space and including a rope connected to the driving mechanism and the detection mechanism respectively and a reversing assembly including at least two reversing pulley groups arranged along an extension path of the rope, and a gear transmission mechanism disposed in the receiving space and connected to the driving mechanism and the rope transmission mechanism respectively, so as to receive the power output by the driving mechanism and transmit the power to the rope transmission mechanism.

Abstract: An ultrasonic transducer (200) includes: a piezoelectric vibrator assembly (10), an acoustic matching layer (20), a heat sink (30), and an acoustic absorption layer (40). The heat sink (30) comprises a body (31), and a head portion (32) and a tail portion (33). The body (31) has a central axis extending in a direction from the head portion (32) to the tail portion (33). A surface of the tail portion (33) of the heat sink (30) disposed away from the head portion (32) is a first surface (331). The first surface (331) is an oblique surface or a tapered surface. The angle between the first surface (331) and the central axis is an acute angle. The acoustic absorption layer (40) at least covers the first surface (331).

Abstract: An ultrasonic transducer (200) includes: a piezoelectric vibrator assembly (10), an acoustic matching layer (20), a heat sink (30), and an acoustic absorption layer (40). The heat sink (30) comprises a body (31), and a head portion (32) and a tail portion (33). The body (31) has a central axis extending in a direction from the head portion (32) to the tail portion (33). A surface of the tail portion (33) of the heat sink (30) disposed away from the head portion (32) is a first surface (331). The first surface (331) is an oblique surface or a tapered surface. The angle between the first surface (331) and the central axis is an acute angle. The acoustic absorption layer (40) at least covers the first surface (331).