Abstract: The present disclosure relates to a piezoelectric sensor, and the piezoelectric sensor includes a support including a connecting member and a supporting member connected to one end of the connecting member; a piezoelectric element, formed as an annular member and disposed surrounding the connecting member; a mass, formed as an annular member and disposed surrounding the piezoelectric element; a first circuit board, disposed on the mass away from the supporting member and provided with a first circuit on a surface close to the mass; and a second circuit board, disposed on the first circuit board away from the supporting member and provided with a second circuit on a surface facing away from the first circuit board.

Abstract: The disclosure provides a charge output element and a piezoelectric acceleration sensor. The charge output element includes: a base including a supporting member and a connecting member disposed on the supporting member; a flexible member sleeved on the connecting member for bending deformation; a mass block assembly disposed around a circumference of the connecting member, wherein the mass block assembly is coupled to the connecting member by the flexible member and suspended above the supporting member to drive the flexible member to be bent and deformed in an extending direction of the connecting member; and a piezoelectric element attached to a surface of the flexible member away from the supporting member and disposed to move along with movement of the flexible member. Therefore, the sensitivity of the charge output element can be improved while the sensitivity of the charge output element is not susceptible to the strain of the base.

Abstract: The disclosure provides a piezoelectric acceleration sensor including a charge output element, a casing, a cable assembly and a connector. The casing is snap-fitted to a supporting portion of a base of the charge output element, and forms a receiving space for receiving the charge output element, the piezoelectric, and the mass block with the supporting portion. The cable assembly is connected to the supporting portion. The connector is connected to an end of the cable assembly facing away from the supporting portion, and is insulated from the cable assembly. One end of either of a first lead and a second lead of the cable assembly is electrically connected to the piezoelectric element, while the other end of the first lead is electrically connected to a conductive terminal of the connector and the other end of the second lead is electrically connected to a housing of the connector.

Abstract: The present disclosure relates to a cable and a high temperature resistant piezoelectric acceleration sensor. The cable comprises a high temperature connection terminal, a low temperature connection terminal, and a high temperature resistant wire segment and a low temperature wire segment located between the high temperature connection terminal and the low temperature connection terminal.

Abstract: The disclosure provides a piezoelectric sensor including a connector and a charge output element. The connector includes a connector housing and a conductive terminal interposed inside the connector housing. The connector housing and the conductive terminal are connected by a first insulating layer. The charge output element includes a base including opposite axially top and bottom ends. A first recess is provided at the top end of the base. A connecting member is disposed inside the first recess along an axial direction of the first recess. A piezoelectric element, a mass block and a fastener are sequentially sleeved on the connecting member. The base includes a second recess formed by recessing an outer peripheral surface of the base toward an interior of the base. The connector is connected to an inner wall of the second recess. A recessed direction of the second recess intersects the axial direction of the base.

Abstract: The present disclosure relates to a piezoelectric sensor, which comprises a charge output element comprising a first end surface and a second end surface opposite to each other in a length direction, and comprising a base and a connecting member extending from the base in a height direction, wherein a piezoelectric member and a mass are sleeved on the connecting member, and are fixed to the connecting member via a pretensioning member; a connector, disposed above the first end surface of the charge output element with a predetermined distance from the first end surface in the length direction, and comprising a connector housing and a conductive terminal, which is inserted into an interior of the connector housing and connected to the connector housing by a first insulating layer; and a case, containing the charge output element and connected with the connector housing and the base.

Abstract: The disclosure provides a piezoelectric sensor, including a piezoelectric crystal cylinder including a plurality of crystal layers which are laminated, each crystal layer including two axially opposite end faces, each end face including an electrode film region and a terminal film region, wherein the electrode film region and the terminal film region on the same end face are separated by a crystal exposure region, the electrode film region on one end face of the two end faces in each crystal layer is electrically connected to the terminal film region on the opposite end face of the two end faces, and the electrode film regions on adjacent end faces of adjacent crystal layers are in contact with each other and form an electrical connection while the terminal film regions on the adjacent end faces of the adjacent crystal layers are in contact with each other and form an electrical connection.

Abstract: The disclosure relates to a piezoelectric acceleration sensor. The piezoelectric acceleration sensor includes: a charge output member comprising a base, a piezoelectric element disposed on the base and a mass, wherein the base includes a supporting portion and a connecting portion disposed on the supporting portion and extending in a first direction, and the piezoelectric element and the mass are sleeved on the connecting portion; a shielding cover sleeved on the connecting portion, wherein the shielding cover is connected to the connecting portion and the supporting portion, the shielding cover forms a shielding space outside a periphery of the connecting portion and above the supporting portion, and the piezoelectric element and the mass are arranged in the shielding space; and a housing coupled with the supporting portion, wherein the housing and the supporting portion form an accommodating space for accommodating the charge output member and the shielding cover.

Abstract: The present disclosure relates to a charge output device, an assembly method thereof, and a piezoelectric acceleration sensor, the charge output device comprises a bracket comprising a support member and a connecting member disposed on the support member; a piezoelectric element surrounding the connecting member and comprising a plurality of piezoelectric crystal groups and electrode plates, the plurality of the piezoelectric crystal groups are disposed at intervals in a circumferential direction of the connecting member and surrounds the connecting member in a polygonal arrangement, the piezoelectric crystal group comprises at least one piezoelectric crystal, the at least one piezoelectric crystal and the electrode plates are alternately stacked in a normal direction of a circumferential surface of the connecting member; and a mass surrounding an outer surface of the piezoelectric element and suspended above the support member, the connecting member, the piezoelectric element and the mass are interference-fi

Abstract: The present disclosure relates to a charge output device, an assembly method and a piezoelectric acceleration sensor.

Abstract: The embodiments of the present disclosure disclose an electronic bandage. The electronic bandage includes a fabric layer, an insulating layer and a conductive layer disposed in order from top to bottom; wherein the insulating layer is provided with a power source and a negative high voltage generator connected with each other, and the negative high voltage generator is further connected to the conductive layer; the conductive layer is provided with two or more support strips at intervals in length direction, the support strips protrude downward from the conductive layer, two or more microelectrodes are distributed on a lower surface of the conductive layer, and a height of a downward protruding portion of a support strip is greater than a height of a microelectrode.