About 11 results
https://drivepatents.com/patents/968890 · 15 Oct 2014
Provided is an airflow measuring apparatus with good measurement accuracy. An airflow measuring apparatus includes: a sub-passage that takes in a part of a flow of fluid flowing through an intake pipe; a sensor element that is disposed in the sub-passage t...
https://drivepatents.com/patents/999341 · 15 Aug 2012
In relation to a humidity sensor sensitive to water and contamination, a sensor implementation structure that achieves both the protection performance against water and contaminants and measurement performance such as humidity responsiveness is provided. A...
https://drivepatents.com/patents/1014128 · 6 Apr 2011
The present invention utilizes self-heating of electronic components to improve a humidity sensing part 500 with low environment resistance, such as a condensation problem and the like, and also to enhance the heat radiation efficiency of electronic compon...
https://drivepatents.com/patents/1076630 · 22 Jun 2005
The present invention relates to a thermal type gas flow measuring instrument that measures gas flow with high precision by accurately correcting changes in radiation heat characteristics of a heating resistor (3) due to contamination. The instrument compr...
https://drivepatents.com/patents/1090172 · 21 Jan 2004
The invention relates to a control unit employed for an internal combustion engine and provided with air flow sensor output correcting means capable of correcting a detected voltage error to occur in the air flow sensor (10) according to a surge voltage an...
https://drivepatents.com/patents/1091034 · 2 Jan 2004
The invention relates to an air flow meter having an element which detects an air flow rate comprising a block (230) in which an auxiliary flow path (242) is formed, wherein the block (230) is inserted through a wall of a body (240) forming a primary flow ...
https://drivepatents.com/patents/1091029 · 2 Jan 2004
The invention relates to a thermal-type air flow measuring instrument comprising a circuit module (4) and a detection element (11, 12) inserted and located in a main passage (15), an adjusting terminal (1, 100) being electrically connected to the circuit m...
https://drivepatents.com/patents/1103296 · 10 Jul 2002
The invention relates to a hot-wire type air flow meter comprising a block (230) in which an auxiliary flow path (242) is formed and a circuit unit (2) is coupled to the block (230), wherein the block (230) is inserted removably through a wall of a body (2...
https://drivepatents.com/patents/1106296 · 6 Mar 2002
The object of this invention is to provide a heated type air flow rate sensor for measuring an air flow rate using heat generating resistive element or resistor formed within a diaphragm of which periphery is fixed, in which diaphragm destruction due to th...
https://drivepatents.com/patents/1106552 · 20 Feb 2002
The method is based on the measurement of the air mass flow in the suction pipe as a value for the combustion chamber charge. From this is calculated the quantity of fuel to be injected, ignition point and engine torque. As a further control parameter the ...