Thermally Sensitive Patents (Class 33/315)
  • Patent number: 11635296
    Abstract: A magnetic sensor device includes first and second surfaces, and first and second inclined surfaces, which are inclined with respect to the first surface; first through third magnetic sensor units for detecting magnetism in first through third axial directions; and a signal processing unit that performs signal processing on the basis of first through third sensor signals output from the first through third magnetic sensor units. The first axial direction is a direction orthogonal to the first surface, and the second and third axial directions are directions orthogonal to each other on the first surface. The first and second magnetic sensor units are provided on the second inclined surface, respectively. A corrected signal generation unit included in the signal processing unit generates first and second corrected signals, which are the first and second sensor signals corrected in accordance with the inclination angles of the first and second inclined surfaces.
    Type: Grant
    Filed: December 19, 2020
    Date of Patent: April 25, 2023
    Assignee: TDK Corporation
    Inventor: Shinichirou Mochizuki
  • Patent number: 11454552
    Abstract: A manufacturing method for a thermoelectric nanosensor includes the following steps. A first conductive material is prepared. A plurality of tellurium nanostructures are formed on the first conductive material. A second conductive material is prepared. The second conductive material is formed on the tellurium nanostructures.
    Type: Grant
    Filed: September 23, 2019
    Date of Patent: September 27, 2022
    Assignee: NATIONAL TSING HUA UNIVERSITY
    Inventors: Zong-Hong Lin, Yu-Hsiang Tsao
  • Patent number: 8441255
    Abstract: A thermoelectrically cooled GMR sensor having a first thermoelectric layer with an array of nanowires, wherein the nanowires include a diameter of about 1 nanometer to about 1000 nanometers. A plurality of alternating layers of magnetic and nonmagnetic material are positioned over and extend the nanowires to form a GMR assembly. A second thermoelectric layer is positioned over the GMR assembly and extends the nanowires, such that the nanowires have a length of between about 100 nanometers and about 500 microns. Conductors are placed in contact with the first and second thermoelectric layers for connecting the thermoelectric layers to a voltage source.
    Type: Grant
    Filed: January 22, 2010
    Date of Patent: May 14, 2013
    Assignee: Louisiana Tech University Research Foundation, a divison of Louisiana Tech University Foundation, Inc.
    Inventors: Despina Davis, Ramya Bellamkonda, Raja Sekharam Mannam
  • Patent number: 7197343
    Abstract: A portable phone has a CPU and a magnetic sensor unit including an X-axis magnetic sensor, a Y-axis magnetic sensor, and a temperature sensor. CPU measures at first and second temperatures the influence of a magnetic field of permanent magnets upon an output Sx of the X-axis magnetic sensor and an output Sy of the Y-axis magnetic sensor, and stores the influence data together with the first and second temperature data. CPU estimates at the present temperature the influence upon the output Sx of the X-axis magnetic sensor and the output Sy of the Y-axis magnetic sensor, from the present temperature detected with the temperature sensor and the stored influence data. CPU corrects the outputs Sx and Sy in accordance with the estimated influence and determines the direction of the portable phone from the corrected outputs Sx and Sy.
    Type: Grant
    Filed: July 9, 2002
    Date of Patent: March 27, 2007
    Assignee: Yamaha Corporation
    Inventor: Hideki Sato
  • Patent number: 6987460
    Abstract: Disclosed is an orientation device that may be deployed in a mechanical assembly such as a surveillance camera or enclosure to positively determine the physical orientation and/or attitude (tilt), or any change in such physical orientation and/or attitude, of either the camera or the enclosure, and report that information electronically. The invention includes a sensor that is triggered by the movement of a weighted flag along a shaft caused by gravity or gravity in conjunction with the operation of a spring. As the invention is rotated through 360°, the force of gravity and force of the spring are exerted on the weighted flag, causing it to move along the shaft as the assembly is rotated. Each movement by the flag is detected by the sensor which sends an electronic signal indicating that a predetermined point has been reached. Multiple assemblies may be used, offset from each other, to provide additional and more precise position information.
    Type: Grant
    Filed: March 14, 2003
    Date of Patent: January 17, 2006
    Assignee: Pelco
    Inventors: Erik H. Tews, Alex Pokrovsky, Thomas C. Lyon
  • Patent number: 6453571
    Abstract: A thermocouple tilt sensing device comprises a container being substantially gas-tight, a first sensing wire having a first and a second end, and a second sensing wire, having a first and a second end. The first end of the first sensing element is electrically connected to the first end of the second sensing wire thereby forming a thermocouple junction. A heater wire is disposed adjacent the thermocouple junction and is connected to an AC or DC power source. The heater wire provides thermal energy which induces a DC output voltage in the thermocouple. The first sensing wire, second sensing wire and the heater wire are disposed within the sealed container. An angle of a device provided with a thermocouple tilt sensing device is determined by measuring the output voltage from the thermocouple junction and comparing it to a known output voltage curve associated with the thermocouple tilt sensing device.
    Type: Grant
    Filed: September 28, 2000
    Date of Patent: September 24, 2002
    Assignee: The Fredericks Company
    Inventor: Wallace R. Crossan, Jr.