Series redundant capacitive sensing device

    公开(公告)号:US11467199B2

    公开(公告)日:2022-10-11

    申请号:US17053461

    申请日:2019-02-25

    申请人: FOGALE NANOTECH

    IPC分类号: G01R27/26 H03K17/955

    摘要: A device for capacitive detection of an object with respect to a detection surface, including: at least one capacitive detection electrode, and detection electronics including at least one item of measurement electronic equipment, for: polarizing the at least one detection electrode at an alternating excitation potential (VG), different from a ground potential; measuring a measurement signal relative to an electrode-object capacitance; and the detection electronics also includes, for the measurement electronics, at least two separate calculation modules, operating in parallel, and supplying two independent detection signals for one and the same measurement signal originating from the measurement electronics.

    PARALLEL REDUNDANT CAPACITIVE SENSING DEVICE

    公开(公告)号:US20210362347A1

    公开(公告)日:2021-11-25

    申请号:US17053303

    申请日:2019-02-14

    申请人: FOGALE NANOTECH

    IPC分类号: B25J13/08 G01L1/14

    摘要: A capacitive detection device includes a set of several detection electrodes for each carrying out capacitive detection at a detection location. Each detection electrode is formed by at least a first measurement electrode and a second measurement electrode. The device also includes first detection electronics forming, with the first measurement electrodes, a first measurement channel, independent from a second measurement channel formed by second detection electronics with the second measurement electrodes.
    Therefore, for each detection location, the detection device carries out at least two redundant and independent detection operations.

    Device and method for detecting the approach and/or contact, and the pressure of an object in relation to a detection surface

    公开(公告)号:US10976460B2

    公开(公告)日:2021-04-13

    申请号:US16469571

    申请日:2017-11-23

    申请人: FOGALE NANOTECH

    摘要: A device for detecting an object with respect to a detection surface including at least one measurement electrode and at least one guard electrode separated by a distance (D) that is elastically modifiable locally by a load exerted by the object on the detection surface; and structure for electrical polarization of the electrodes (V, E) arranged in order to: (i) apply to the measurement and guard electrodes one and the same first alternating electrical potential (Vg) so as to measure a first signal relating to an electrode-object capacitance (Ceo); and (ii) apply between the measurement and guard electrodes an alternating electrical potential difference (V1), so as to measure a second electrical signal relating to an electrode-guard capacitance (Ceg).
    A detection method utilizing the present detection device is also provided.

    Device and method for detecting the approach and/or contact and pressure of an object in relation to a detection surface

    公开(公告)号:US10697839B2

    公开(公告)日:2020-06-30

    申请号:US16469032

    申请日:2017-11-23

    申请人: FOGALE NANOTECH

    IPC分类号: G01L1/14 B25J13/08

    摘要: A detection device including: a measurement electrode, and a second electrode separated from one another by a distance (D) that is elastically modifiable locally, by a load exerted by an object on a detection surface, and a controller arranged in order to: connect the electrodes to an alternating guard potential (Vg) in order to measure a capacitance representing an approach and a contact; and connect the second electrode to a second potential a second potential proportional to the guard potential (Vg) and having a different amplitude, or to the ground potential (G), in order to measure a capacitance representing a pressure. Also provided is a detection method utilizing such a detection device.

    Method for real-time monitoring of the operational state of a capacitive sensor

    公开(公告)号:US09897641B2

    公开(公告)日:2018-02-20

    申请号:US15318491

    申请日:2015-06-10

    申请人: FOGALE NANOTECH

    摘要: A method for real-time monitoring of an operational state of a capacitive sensor capable of being mounted on a rotating machine, and connected to an electronic measuring module via a high frequency transmission line. The method includes generating, within the electronic module, a signal for compensating in capacitance parasitic effects from the transmission line and the sensor, generating, within the electronic module, a signal for compensating in conductance parasitic effects from the transmission line and the sensor, extracting a signal representative of the capacitance compensation and of a signal representative of the conductance compensation so as to determine an operating point of the sensor and analyzing the operating point so as to check if it is located in a predetermined area.

    PROXIMITY AND PRESSURE DETECTION DEVICE, DETECTION LAYER AND ITEM OF EQUIPMENT EQUIPPED WITH SUCH DEVICES

    公开(公告)号:US20220407517A1

    公开(公告)日:2022-12-22

    申请号:US17756091

    申请日:2020-10-19

    申请人: FOGALE NANOTECH

    摘要: A device for detecting an object, with respect to a detection surface, including at least one measuring electrode, at least one emission electrode coupled to the measuring electrode by a piezoresistive layer, and measurement electronics, configured so as to bias the electrodes at the same alternating potential and perform a measurement, called capacitive measurement, of a first measured signal (Vs) relating to the capacitance (Coe), called object-electrode capacitance, seen by the at least one measuring electrode; apply a potential difference between the electrodes and measure a second signal relating to the resistance (Rie) between the electrodes. Also, a detection layer includes such a detection device as well as an item of equipment equipped with such a detection layer.

    Robot equipped with capacitive detection

    公开(公告)号:US11226212B2

    公开(公告)日:2022-01-18

    申请号:US16612702

    申请日:2018-05-07

    申请人: FOGALE NANOTECH

    摘要: A robot includes a body on which is mounted a functional head also including a capacitive detector, including: at least one electrical insulator in order to electrically insulate the functional head; at least one apparatus for electrically polarizing the functional head at a first alternating electrical potential (Vg), different from a ground potential; at least one guard polarized at an alternating guard potential (VG) identical to the first alternating electrical potential; and at least one electronics, called detection electronics, for measuring a signal relating to a coupling capacitance, called electrode-object capacitance, between the sensitive part and a surrounding object.

    SERIES REDUNDANT CAPACITIVE SENSING DEVICE

    公开(公告)号:US20210231718A1

    公开(公告)日:2021-07-29

    申请号:US17053461

    申请日:2019-02-25

    申请人: FOGALE NANOTECH

    IPC分类号: G01R27/26 H03K17/955

    摘要: A device for capacitive detection of an object with respect to a detection surface, including: at least one capacitive detection electrode, and detection electronics including at least one item of measurement electronic equipment, for: polarizing the at least one detection electrode at an alternating excitation potential (VG), different from a ground potential; measuring a measurement signal relative to an electrode-object capacitance; and the detection electronics also includes, for the measurement electronics, at least two separate calculation modules, operating in parallel, and supplying two independent detection signals for one and the same measurement signal originating from the measurement electronics.

    ROBOT EQUIPPED WITH CAPACITIVE DETECTION

    公开(公告)号:US20210080293A1

    公开(公告)日:2021-03-18

    申请号:US16612702

    申请日:2018-05-07

    申请人: FOGALE NANOTECH

    摘要: A robot includes a body on which is mounted a functional head also including a capacitive detector, including: at least one electrical insulator in order to electrically insulate the functional head; at least one apparatus for electrically polarizing the functional head at a first alternating electrical potential (Vg), different from a ground potential; at least one guard polarized at an alternating guard potential (VG) identical to the first alternating electrical potential; and at least one electronics, called detection electronics, for measuring a signal relating to a coupling capacitance, called electrode-object capacitance, between the sensitive part and a surrounding object.