Class / Patent application number | Description | Number of patent applications / Date published |
073204150 | Including detail of feedback or rebalancing circuitry | 8 |
20090007655 | THERMAL FLOW SENSOR HAVING AN AMPLIFIER SECTION FOR ADJUSTING THE TEMPERATURE OF THE HEATING ELEMENT - A thermal flow sensor can adjust the temperature of a heating element in a highly precise and reliable manner with the use of simple circuits, devices and process steps. The sensor includes an amplifier section ( | 01-08-2009 |
20090007656 | THERMAL FLOW SENSOR HAVING AN AMPLIFIER SECTION FOR ADJUSTING THE TEMPERATURE OF THE HEATING ELEMENT - A thermal flow sensor can adjust the temperature of a heating element in a highly precise and reliable manner with the use of simple circuits, devices and process steps. The sensor includes an amplifier section ( | 01-08-2009 |
20090007657 | THERMAL FLOW SENSOR HAVING AN AMPLIFIER SECTION FOR ADJUSTING THE TEMPERATURE OF THE HEATING ELEMENT - A thermal flow sensor can adjust the temperature of a heating element in a highly precise and reliable manner with the use of simple circuits, devices and process steps. The sensor includes an amplifier section ( | 01-08-2009 |
20090007658 | THERMAL FLOW SENSOR HAVING AN AMPLIFIER SECTION FOR ADJUSTING THE TEMPERATURE OF THE HEATING ELEMENT - A thermal flow sensor can adjust the temperature of a heating element in a highly precise and reliable manner with the use of simple circuits, devices and process steps. The sensor includes an amplifier section ( | 01-08-2009 |
20090013777 | THERMAL FLOW SENSOR HAVING AN AMPLIFIER SECTION FOR ADJUSTING THE TEMPERATURE OF THE HEATING ELEMENT - A thermal flow sensor can adjust the temperature of a heating element in a highly precise and reliable manner with the use of simple circuits, devices and process steps. The sensor includes an amplifier section ( | 01-15-2009 |
20150020587 | Temperature Compensation Module For a Fluid Flow Transducer - Apparatus and associated methods relate to a temperature-compensated drive for a heating element used in a micro-bridge flow sensor. In some embodiments, the heating element may be located substantially between two temperature sensors. The two temperature sensors may be convectively coupled to the heater by a fluid ambient. When the fluid ambient is flowing, one of the temperature sensors may be upstream of the heating element, and one of the temperature sensors may be downstream. The fluid may be heated by the heating unit, and this heated fluid may then flow past the downstream temperature sensor. The two temperature sensors may be used in a Wheatstone bridge configuration. In some embodiments, an output signal of the Wheatstone bridge may be indicative of a measure of fluid flow. The temperature-compensated drive for the heating element may enhance, for example, the flow meter's disturbance rejection of ambient temperature. | 01-22-2015 |
20150369644 | Thermally-Dissipative Flow Sensor System - Exemplary embodiments of the present disclosure are generally directed to a thermally-dissipative flow monitoring system. In exemplary embodiments, a solid state flow sensor system heats a first thermistor (“flow thermistor”) to a heat to” temperature and allows the first thermistor to cool to a “cool to” temperature. The flow sensor system measures the time it takes the first thermistor to reach a “heat to” temperature and/or a “cool to” temperature. These times can be used to determine if the flow rate is above or below a particular threshold (e.g., as in the case of a flow switch), or to determine the flow rate (e.g., as in the case of a flow sensor). The “heat to” temperature and “cool to” temperatures are set using a second thermistor (“fluid thermistor”) which is measures the surrounding fluid temperature. | 12-24-2015 |
073204160 | By control of a separate heating or cooling element | 1 |
20080276702 | METHOD AND DEVICE FOR MEASURING WATER CURRENTS - Fluid current measurement by means of resistance differentials in thermistor. Input parameters to micro-processor like fluid temperature, depth, change in electrical resistance, direction sensors. Output calculation of fluid current, current direction, temperature, danger level and recommended safe distance from the boat. | 11-13-2008 |