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Class Information
Number: 324/166
Name: Electricity: measuring and testing > Electrical speed measuring > Including speed-related frequency generator
Description: Subject matter in which the signal producing means produces a periodic electrical signal whose frequency is a function of the speed being measured.










Sub-classes under this class:

Class Number Class Name Patents
324/173 Including magnetic detector 434
324/168 Including periodic switch 34
324/175 Including radiant energy detector 135
324/167 Including rotating magnetic field actuated indicator 64
324/172 Including synchronized recording medium 16


Patents under this class:
1 2 3 4 5 6 7 8 9 10

Patent Number Title Of Patent Date Issued
8659250 Management apparatus of a rotating motor and an annexed load during power loss Feb. 25, 2014
8558534 Rotational angle detection device and electric power steering system Oct. 15, 2013
8547085 Plasma-facing probe arrangement including vacuum gap for use in a plasma processing chamber Oct. 1, 2013
8531182 Control system and method for providing position measurement with redundancy for safety checking Sep. 10, 2013
8504209 Controlling a device that generates vibrations in a computer system Aug. 6, 2013
8497672 Acceleration sensor Jul. 30, 2013
8497673 Directional resistivity antenna shield Jul. 30, 2013
8493017 Electrical drive with switchable coil sections Jul. 23, 2013
8493061 Cycle meter adjustment device Jul. 23, 2013
8461827 Roller bearing arrangement with a sensor unit Jun. 11, 2013
8436606 Rotation detector May. 7, 2013
8339122 Speed sensor for a rotating member Dec. 25, 2012
8334687 Systems and methods for measuring rotational speed and position of a rotating device Dec. 18, 2012
8334686 Vibrating helical spring sensors and methods to operate the same Dec. 18, 2012
8330450 Magnetic position sensor Dec. 11, 2012
8330451 Sensor for measuring rotational speeds as well as for the simultaneous determination of direction of rotation Dec. 11, 2012
8310227 Electronic measuring wheel Nov. 13, 2012
8306775 Apparatus, method, and program for detecting rotation speed information, and apparatus, method, and, program for detecting tire having decreased pressure Nov. 6, 2012
8294454 Position measuring device Oct. 23, 2012
8278910 Phase locked loop for controlling motor and spindle motor using the same Oct. 2, 2012
8248064 Inductive speed detector Aug. 21, 2012
8228055 Apparatus and method for measuring critical current properties of a coated conductor Jul. 24, 2012
8193806 Object detecting apparatus Jun. 5, 2012
8188727 Hub mountable speed sensing device May. 29, 2012
8179132 Method and system for integrating eddy current inspection with a coordinate measuring device May. 15, 2012
8169214 Angular position sensor May. 1, 2012
8164324 Rotation sensor Apr. 24, 2012
8159173 Control device for controlling travel motor of vehicle Apr. 17, 2012
8148974 Pulse generator wheel, preferably for shafts, and method for manufacturing such a pulse generator wheel Apr. 3, 2012
8115612 Display device for vehicle Feb. 14, 2012
8115477 Shaft speed sensor with analog output Feb. 14, 2012
8111032 Indicating instrument for vehicle Feb. 7, 2012
8106647 Rotation sensor Jan. 31, 2012
8102139 Indicating instrument for vehicle Jan. 24, 2012
8093885 Residual magnetic flux determining apparatus Jan. 10, 2012
8035498 Wireless monitoring system with a self-powered transmitter Oct. 11, 2011
8018189 Motor drive apparatus Sep. 13, 2011
8015708 Method and apparatus for manufacturing tonewheel for vehicles Sep. 13, 2011
7901013 Motorcycle wheel speed sensor mounting structure Mar. 8, 2011
7878521 Bicycle frame with device cavity Feb. 1, 2011
7746063 Speed indication for pump condition monitoring Jun. 29, 2010
7728581 Method of using oscilloscope to test rotation speed of fan Jun. 1, 2010
7661771 Speed sensor fitting structure Feb. 16, 2010
7626382 Rotation speed detecting apparatus and automatic transmission controller having the apparatus Dec. 1, 2009
7593795 Method and system for compensating for wheel wear on a train Sep. 22, 2009
7577767 Data storage system having plural storage processors in a single chassis Aug. 18, 2009
7511474 DC motor phase detection method for determining a distance traveled by a load Mar. 31, 2009
7496154 Power and area efficient receiver circuit having constant hysteresis for noise rejection Feb. 24, 2009
7441322 Method of manufacturing a magnetic detection apparatus Oct. 28, 2008
7385387 Signal processing circuit of rotation detecting device Jun. 10, 2008

1 2 3 4 5 6 7 8 9 10










 
 
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