The present invention discloses a power assembly and an electronic cigarette having same. The power assembly comprises a main body, a waterproof and breathable membrane and a pneumatic sensor, wherein the main body is provided with an internal cavity in which the pneumatic sensor is mounted and a mounting portion in which an external load is mounted, the mounting portion is provided with an airflow passage, the internal cavity is in communication with external environment through the airflow passage, the waterproof and breathable membrane is mounted on the main body and covers the airflow passage; when the external load is mounted on the mounting portion, the air channel inside the external load is communicated with the airflow passage, and when the pneumatic sensor senses that the airflow movement in the airflow passage reaches a preset threshold, the main body is triggered to control the external load.

A wireless communication device includes a pressure sensor to generate a first signal in response to a pressure variation. A variable offset capacitor is coupled in parallel with the pressure sensor. A first analog-to-digital converter (ADC) is coupled to the variable offset capacitor and to convert the first signal to a digital signal. The pressure sensor is a capacitive pressure sensor. The variable offset capacitor is a digitally controlled variable capacitor and the ADC is a low-resolution and low-power ADC.

A fiber optic sensor and a related method of manufacture are provided. The fiber optic sensor includes an embedded optical fiber contained within a metal diaphragm assembly, where the terminal end of the optical fiber is positioned opposite a diaphragm. The method includes forming a metal-embedded optical fiber by ultrasonic additive manufacturing and securing the metal-embedded optical fiber to a housing having a diaphragm that is opposite of the terminal end of the optical fiber. The sensor can provide extremely accurate pressure measurement at high temperatures and in highly corrosive media. An optical fiber-based pressure sensing system is also provided.

A sensor including a deformation body having a membrane for deformation when subjected to pressure from a medium. The sensor further includes a strain element applied to and attached to the membrane. The strain element is based on SOI technology and has multiple piezoresistive resistors.

A MEMS photoacoustic gas sensor includes a first membrane and a second membrane opposing the first membrane and spaced apart from the first membrane by a sensing volume. The MEMS photoacoustic gas sensor includes an electromagnetic source and communication with the sensing volume to deflect the first membrane and the second membrane.

Disclosed are pressure sensors including a die and an application-specific integrated circuit (ASIC) mounted on a top surface of a substrate. The pressure sensor can define an inner volume and a bottom opening configured to abut the substrate. The die and ASIC are mounted on the top surface of the substrate within the inner volume. The substrate defines a first aperture therethrough and the die defines a second aperture therethrough in a direction along an axis perpendicular to the substrate, the first aperture and the second aperture being aligned. Metallic barrier(s) disposed on a bottom surface of the substrate, circumferentially about the first aperture, can be at least partially coated with solder mask to reduce or prevent flow of unwanted materials past the metallic barriers and through the first aperture. The substrate can include electrical connection pads on the bottom surface configured to be in communication with a daughter board.

A pressure and temperature measuring device with improved compact design and installation having a base (1) with an elongated geometry, arranged according to the longitudinal axis (A) inside the casing (16) and having a partition (5), a back (18), a platform (19) and a plinth (10); the partition (5) has an inner plane (5′) oriented towards the back (18) and parallel to the longitudinal axis (A) and an outer plane (5″) that forms an acute angle with the inner plane (5′), the back (18), the platform (19) and the inner plane (5′) of the partition (5) define a slot (17) and receives the electronic circuit board (3), the outer plane (5″) of the partition (5) defines a support surface to support together with the plinth (10) for the pressure-sensitive element (2), the outer surface (5″) of the partition (5) having an opening (7) that gives way to the conduit (8).

A silicon sensor device includes a plurality of metal layers and a plurality of dielectric layers. The plurality of metal layers include: a first metal layer comprising a plurality of transmitter electrodes and a plurality of receiver electrodes; a second metal layer disposed beneath the first metal layer, wherein the second metal layer comprises a plurality of routing traces for the plurality of transmitter electrodes; and one or more circuit layers disposed beneath the second metal layer. A respective routing trace for a respective transmitter electrode is configured to shield respective portions of the plurality of receiver electrodes which correspond to a width of the respective transmitter electrode from energy and/or noise originating from the one or more circuit layers. The plurality of metal layers and the plurality of dielectric layers are disposed on a same die.

A sensor for detecting the pressure of a fluid has a sensor body having at least one first body part and one second body part. The first body part and the second body part are joined together in such a way that a first face of the first body part faces a first face of the second body part, at a distance therefrom.

The pressure sensor has a circuit arrangement, which includes at least one first electrical circuit that extends at least in part in an area corresponding to a membrane portion and is configured for detecting an elastic flexure or deformation thereof.

The first electrical circuit is associated to the first face of one of the first body part and the second body part, and the first face of the other one of the first body part and the second body part forms or has associated thereto at least one circuit element, prearranged for interacting with the first electrical circuit when an elastic flexure or deformation of the membrane portion is of a degree at least equal to a substantially predetermined limit, to generate thereby information or a warning representative of at least one from among an excessive pressure of the fluid, an incorrect pressure measurement, and an anomalous state of the device.

A material property sensor for a pressure transmitter comprises a sensing pattern immersed in a fill fluid. The pressure transmitter comprises a diaphragm configured for contact with a process fluid at an exterior surface of the diaphragm. The pressure transmitter further comprises a pressure sensor configured for sensing a pressure of the process fluid on the diaphragm. The pressure sensor and the diaphragm define a cavity within which the fill fluid is disposed such that the diaphragm of the pressure sensor is in contact with the fill fluid at an interior surface of the diaphragm. The sensing pattern is immersed in the fill fluid within the cavity and configured to measure an electrical property of the fill fluid at an initial time and at one or more subsequent times during operation of the pressure transmitter.