摘要:
An inexpensive piezoelectric sensor where noise unlikely occurs and a method for manufacturing the same are provided. A piezoelectric body (2) made of polymeric material, a first electrode-supporting portion (3) disposed at one side of the piezoelectric body (2) and supporting a signal electrode (3b) on a first insulator (3a), and a second electrode-supporting portion (4) disposed at the other side of the piezoelectric body (2) and supporting a ground electrode (4b) on a second insulator (4a) are included, and the first electrode-supporting portion (3) and the second electrode-supporting portion (4) are arranged so that the signal electrode (3b) and the ground electrode (4b) overlap each other in a layering direction.
摘要:
An inexpensive piezoelectric sensor where noise unlikely occurs and a method for manufacturing the same are provided. A piezoelectric body (2) made of polymeric material, a first electrode-supporting portion (3) disposed at one side of the piezoelectric body (2) and supporting a signal electrode (3b) on a first insulator (3a), and a second electrode-supporting portion (4) disposed at the other side of the piezoelectric body (2) and supporting a ground electrode (4b) on a second insulator (4a) are included, and the first electrode-supporting portion (3) and the second electrode-supporting portion (4) are arranged so that the signal electrode (3b) and the ground electrode (4b) overlap each other in a layering direction.
摘要:
A piezoelectric film sensor includes a substrate 1 having a signal electrode 2 and a ground electrode 3 formed on the surface thereof, the substrate being folded to cause the signal electrode 2 and the ground electrode 3 to be overlapped with each other in a plane view, a piezoelectric film 5 inserted between the signal electrode 2 and the ground electrode 3 formed on the substrate 1 and a bonding layer 6 for bonding the folded substrate 1 thereby to affix the signal electrode 2, the ground electrode 3 and the piezoelectric film 5 together.
摘要:
A biosignal intensity distribution measuring apparatus, includes a supporting member for supporting a human body, a plurality of detecting portions arranged in two dimensions within a target detection area of the supporting member, the detecting portions detecting pressure fluctuations and outputting signals corresponding to the pressure fluctuations respectively, a filter extracting a biosignal having a predetermined frequency band based from the signal outputted from each of the detecting portions, an intensity calculating portion calculating an intensity value of the biosignal, and an intensity distribution producing portion producing intensity distribution in which the intensity value corresponds to a position of the detecting portion.
摘要:
A biological information pressure sensor having a planer shape disposed on an elastic support element for supporting a human body, for detecting an external force due to one or both of a load variation caused by the human body and vibration generated by the human body. The sensor includes a sensing portion having sensitivity with respect to the external force, wherein the sensing portion is configured by using a piezoelectric material, and is configured to have flexibility and anisotropy.
摘要:
The present invention provides a load detecting apparatus capable of detecting load and vibration applied to a support supporting a body of a human or an animal by a load sensor provided in the support, in particular such a load detecting apparatus capable of detecting micro vibration applied to the support, with a high noise immunity.The load detecting apparatus includes a plurality of load sensors 1 disposed in distribution within a detection target area of a support 7 , a selecting means 6 for selecting one or some of the plurality of load sensor(s) 1 , a detecting means 5 capable of detecting load and vibration applied to the support 7 , based on the output from the selected load sensor(s) 1. The selecting means 6 effects the selection, based on either the outputs S from the respective load sensors or the outputs S from the respective load sensors, plus disposing positions of the respective load sensors.
摘要:
The present invention provides a load detecting apparatus capable of detecting load and vibration applied to a support supporting a body of a human or an animal by a load sensor provided in the support, in particular such a load detecting apparatus capable of detecting micro vibration applied to the support, with a high noise immunity.The load detecting apparatus includes a plurality of load sensors 1 disposed in distribution within a detection target area of a support 7, a selecting means 6 for selecting one or some of the plurality of load sensor(s) 1, a detecting means 5 capable of detecting load and vibration applied to the support 7, based on the output from the selected load sensor(s) 1. The selecting means 6 effects the selection, based on either the outputs S from the respective load sensors or the outputs S from the respective load sensors, plus disposing positions of the respective load sensors.
摘要:
A heart beat sensor (10) comprises signal processing means (15) for performing frequency analysis of the output signal of a piezoelectric sensor (1) installed in a seat (2) and judging means (16) judges on the basis of the results of the frequency analysis that if the amplitude of the signal component in a first preset frequency range included in the output signal is in a preset amplitude range, the signal component includes a human body seating waveform indicating a person is seated in the seat (2).
摘要:
A biological information pressure sensor having a planer shape disposed on an elastic support element for supporting a human body, for detecting an external force due to one or both of a load variation caused by the human body and vibration generated by the human body. The sensor includes a sensing portion having sensitivity with respect to the external force, wherein the sensing portion is configured by using a piezoelectric material, and is configured to have flexibility and anisotropy.
摘要:
A biosignal intensity distribution measuring apparatus, includes a supporting member for supporting a human body, a plurality of detecting portions arranged in two dimensions within a target detection area of the supporting member, the detecting portions detecting pressure fluctuations and outputting signals corresponding to the pressure fluctuations respectively, a filter extracting a biosignal having a predetermined frequency band based from the signal outputted from each of the detecting portions, an intensity calculating portion calculating an intensity value of the biosignal, and an intensity distribution producing portion producing intensity distribution in which the intensity value corresponds to a position of the detecting portion.