# US 2018/0321104 A1 · Integrated pressure and temperature sensor > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2018/0321104 A1 - Document ID: US20180321104A1 - Status: Published application - Kind: A1 - Application number: 15/586,627 - Filed: 2017-05-04 - Published: 2018-11-08 - Earliest claimed: 2017-05-04 - Assignees: Sensata Technologies, Inc. - Applicants: Sensata Technologies, Inc. - Inventors: Neil Petrarca; Edwin Vonk - Web page: https://patentgrep.com/patent/US20180321104A1 ## CPC - G01L 19/0092: {Pressure sensor associated with other sensors, e.g. for measuring acceleration or temperature (G01L9/025, G01L9/045, G01L9/065, G01L9/085, G01L9/105, G01L9/125, G01L19/02, G01L19/04 take precedence; measuring two or more variable G01D21/02; temperature sensors with pressure compensation G01K1/26)} - G01K 7/22: the element being a non-linear resistance, e.g. thermistor (G01K7/26 takes precedence) - G01K 13/02: for measuring temperature of moving fluids or granular materials capable of flow - G01L 9/0051: {using variations in ohmic resistance} - G01L 9/0052: {of piezoresistive elements (circuits therefor G01L9/06)} - G01K 13/026: {of moving liquids} - G01L: MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE (weighing G01G) - G01K: MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR (radiation pyrometry G01J5/00) ## Abstract A device for sensing pressure and temperature in a fluid environment includes a cover defining an interior. A thermistor tube is positioned at least partially within the interior, the thermistor tube extending substantially along a longitudinal axis. A port body is also positioned at least partially within the interior, the port body forming a channel which extends along the longitudinal axis for receiving a fluid from the fluid environment. A diaphragm is affixed within the port body. The diaphragm has a first surface exposed to the fluid within the channel and a second surface sealed from the channel. ## Claims ### Claim 1 A device for sensing pressure and temperature in a fluid environment comprising: a cover defining an interior, the cover including, within the interior, an annular flange; a port body having: an outer annular ring coupling with the annular flange to form a double clinch seal; and interior walls which surround a thermistor tube to form a channel for receiving a fluid from the fluid environment, the channel extending substantially parallel to a longitudinal axis; at least one diaphragm affixed within the port body along a plane substantially parallel to the longitudinal axis, each of the diaphragms having at least one pressure sensing element coupled to a surface distal to the channel; and an electronics module assembly having a first end and a second end, the first end positioned above the thermistor tube along the longitudinal axis and having a plurality of electronic components, the second end positioned within the thermistor tube and having a plurality of thermistor elements electrically connected to the electronic components, wherein: the thermistor elements are each calibrated to sense temperature within a different specified range; the pressure sensing elements are each: calibrated to sense pressure within a different specified range; and offset from the electronics module assembly; and the double clinch seal hermetically seals the port body to the cover. ### Claim 2 A device for sensing pressure and temperature in a fluid environment comprising: a cover defining an interior; a thermistor tube at least partially within the interior, the thermistor tube extending substantially along a longitudinal axis; a port body at least partially within the interior, the port body forming a channel which extends along the longitudinal axis for receiving a fluid from the fluid environment; and a first diaphragm affixed within the port body and having: a first surface exposed to the fluid within the channel; and a second surface sealed from the channel. ### Claim 3 (depends on 2) The device of claim 2 wherein: the thermistor tube is offset from the port body; and the port body is sealed to the cover via a double clinch seal. ### Claim 4 (depends on 2) The device of claim 2 wherein: the port body has interior walls which surround the thermistor tube with respect to the longitudinal axis; and the channel is formed between the port body and the thermistor tube, wherein the first diaphragm forms a plane substantially parallel to the longitudinal axis. ### Claim 5 (depends on 2) The device of claim 2 further comprising a first pressure sensing element coupled to the second surface of the first diaphragm. ### Claim 6 (depends on 2) The device of claim 2 further comprising a second pressure sensing element coupled to the second surface of the first diaphragm. ### Claim 7 (depends on 5) The device of claim 5 further comprising: a second diaphragm affixed within the port body and extending substantially parallel to the longitudinal axis, the second diaphragm having: a first surface exposed to the fluid within the channel; and a second surface sealed from channel; and a second pressure sensing element coupled to the second surface of the second diaphragm. ### Claim 8 (depends on 7) The device of claim 7 wherein the pressure sensing elements are each calibrated to sense pressure within a different specified range. ### Claim 9 (depends on 4) The device of claim 4 wherein the thermistor tube includes a load bearing flange extending across the channel to contact an upper portion of the port body. ### Claim 10 (depends on 2) The device of claim 2 further comprising: an electronics module assembly extending substantially along the longitudinal axis, the electronics module assembly having a lower end: positioned within the thermistor tube; and coupled to a thermistor element. ### Claim 11 (depends on 10) The device of claim 10 wherein the electronics module assembly includes at least one additional lower thermistor element coupled to the lower end of the electronics module assembly within the thermistor tube. ### Claim 12 (depends on 11) The device of claim 11 wherein each additional lower thermistor element is calibrated to sense temperature within a different specified range. ### Claim 13 (depends on 10) The device of claim 10 wherein the electronics module assembly includes an upper end positioned above the thermistor tube along the longitudinal axis, the upper end having a plurality of electronic components. ### Claim 14 A device for sensing pressure and temperature in a fluid environment comprising: a cover defining an interior, the cover including, within the interior, an annular flange; and a port body positioned within the interior and having an outer annular ring, the outer annular ring coupling with the annular flange to form a mechanical seal, wherein the mechanical seal seals the port body to the cover. ### Claim 15 (depends on 14) The device of claim 14 wherein the mechanical seal is a double clinch seal. ### Claim 16 (depends on 14) The device of claim 14 further comprising: a thermistor tube, positioned within the interior and having an open top portion and a closed bottom portion; and a channel, formed between the thermistor tube and the cover, for receiving a fluid from the fluid environment. ### Claim 17 (depends on 16) The device of claim 16 further comprising: an electronics module assembly having: a lower end positioned within the thermistor tube and having a plurality of lower electronic components; a central portion extending through the open top portion of the thermistor tube; and a top portion positioned above the thermistor tube and having a plurality of upper electronic components. ### Claim 18 (depends on 17) The device of claim 17 wherein the lower end of the electronics module assembly includes a plurality of thermistor elements. ### Claim 19 (depends on 18) The device of claim 18 wherein lower end electronic components include signal conditioning electronics. ### Claim 20 (depends on 16) The device of claim 16 further comprising: a diaphragm affixed within the port body and forming a plane substantially parallel to the channel, the diaphragm configured to flex in response to a pressure from the fluid; and a pressure sensing element coupled to a surface of the diaphragm for sensing pressure in the fluid environment based on the flexure of the diaphragm.