G01L23/18

Blood Pressure Measurement System Using Force Resistive Sensor Array

A novel and useful pressure sensor array incorporating sensor elements constructed from electrically conductive film as a substrate. Examples of commercially available electrically conductive (i.e. piezoresistive) film include Velostat and Linqstat. A wearable device is described incorporating an array of pressure sensors with flexible properties and a biocompatible material interface between the sensor elements and a user's skin. The pressure sensor array uses the electrically conductive film as a substrate and places a pair of conductors in a suitable configuration to form individual sensor elements. The sensor elements detect the change in resistance of the electrically conductive film when pressure is applied thereto. The sensor elements may be implemented in an interdigitated or opposing configuration. The sensor array also comprises a mechanical interface on top of the sensor elements for transferring or focusing the applied pressure to the electrically conductive film.

Blood Pressure Measurement System Using Force Resistive Sensor Array

A novel and useful pressure sensor array incorporating sensor elements constructed from electrically conductive film as a substrate. Examples of commercially available electrically conductive (i.e. piezoresistive) film include Velostat and Linqstat. A wearable device is described incorporating an array of pressure sensors with flexible properties and a biocompatible material interface between the sensor elements and a user's skin. The pressure sensor array uses the electrically conductive film as a substrate and places a pair of conductors in a suitable configuration to form individual sensor elements. The sensor elements detect the change in resistance of the electrically conductive film when pressure is applied thereto. The sensor elements may be implemented in an interdigitated or opposing configuration. The sensor array also comprises a mechanical interface on top of the sensor elements for transferring or focusing the applied pressure to the electrically conductive film.

Dynamic Quantity Measuring Device and Pressure Sensor Using Same
20170199096 · 2017-07-13 · ·

Provided are a dynamic quantity measuring device having higher accuracy and longer-term reliability than in the prior art, and a pressure sensor using the same. A dynamic quantity measuring device is provided with a first Wheatstone bridge configured by an impurity diffused resistor on a principal surface of one semiconductor substrate, and detects a difference between strain quantities respectively generated in an x-axis direction and a y-axis direction that are orthogonal to each other on the principal surface of the semiconductor substrate by the first Wheatstone bridge, the dynamic quantity measuring device being provided with, on the principal surface of the semiconductor substrate, a second Wheatstone bridge for detecting the strain quantity in the x-axis direction, and a third Wheatstone bridge for detecting the strain quantity in the y-axis direction.

Device for Detecting a Parameter of a Gas, Method for Operating Such a Device, and Measuring System for Determining a Parameter of a Gas
20170038273 · 2017-02-09 ·

A device for detecting a parameter of a gas includes a body defining at least one cavity, at least one membrane, and at least one pressure measuring element. The cavity is configured to receive a gas from an outer area. The at least one membrane is configured to separate the cavity from the outer area. A first side of the at least one membrane facing toward the outer area includes a first layer of an electrically conductive material, and a second side of the at least one membrane facing toward the cavity and opposite the first side includes a second layer of the electrically conductive material. At least one portion of the at least one membrane includes an ion-conductive material. The at least one pressure measuring element is positioned on the at least one membrane, and is configured to detect a pressure of the gas in the cavity.

Device for Detecting a Parameter of a Gas, Method for Operating Such a Device, and Measuring System for Determining a Parameter of a Gas
20170038273 · 2017-02-09 ·

A device for detecting a parameter of a gas includes a body defining at least one cavity, at least one membrane, and at least one pressure measuring element. The cavity is configured to receive a gas from an outer area. The at least one membrane is configured to separate the cavity from the outer area. A first side of the at least one membrane facing toward the outer area includes a first layer of an electrically conductive material, and a second side of the at least one membrane facing toward the cavity and opposite the first side includes a second layer of the electrically conductive material. At least one portion of the at least one membrane includes an ion-conductive material. The at least one pressure measuring element is positioned on the at least one membrane, and is configured to detect a pressure of the gas in the cavity.