Abstract: A rotary encoder may include a magnet, a magnetic sensor, and a control part configured to calculate a rotation position of the rotor body based on an output signal outputted from the magnetic sensor. The control part includes a temperature detecting section configured to detect temperature of the magnetic sensor, an offset voltage calculation section configured to calculate an offset voltage of the magnetic sensor based on the output signal from the magnetic sensor, and a storage section which stores a slope and an intercept of a primary approximate expression calculated by a relationship between temperatures previously detected by the temperature detecting section and the offset voltages previously calculated by the offset voltage calculation section. The control part executes offset voltage estimate processing based on the slope and the intercept stored in the storage section and correction processing which corrects the output signal from the magnetic sensor.

Abstract: A rotary encoder may include a first sensor unit including a first magnet, and a first magnetosensitive unit facing the first magnet; a second sensor unit including a second magnet with a plurality of pairs of N poles and S poles alternately magnetized, and a second magnetosensitive unit facing the second magnet; a circuit to generate pulses for counting from an output of the second sensor unit; and a counter to count the pulses. During activation, an angle position of the rotating body is calculated based on outputs of a first and second sensor unit, and after activation, pulse counting is counted by a counter.

Abstract: A rotary encoder may include a first sensor unit comprising a first magnet, and a first magnetosensitive unit facing the first magnet; a second sensor unit comprising a second magnet, and a second magnetosensitive unit facing the second magnet; a circuit to generate pulses; a counter to count the pulses; a first arithmetic unit to calculate a first angle value based on an output of the first magnetosensitive unit; and a second arithmetic unit to calculate a second angle value based on an output of the second magnetosensitive unit. One of the first magnet and the first magnetosensitive unit is provided in the fixed body and the other is provided in the rotating body. One of the second magnet and the second magnetosensitive unit is provided in the fixed body and the other is provided in the rotating body.

Abstract: A rotary encoder includes a control part having a storage section storing a plurality of parameters regarding error signal components at a reference rotation speed, the error signal components respectively being superposed on an “A”-phase signal and a “B”-phase signal in proportion to a rotation speed of a rotor body, and a rotation speed calculation section structured to measure a reception interval of a requirement signal and calculate a current rotation speed of the rotor body. The control part is structured to convert a parameter stored in the storage section to a value at the current rotation speed based on a ratio between the reference rotation speed and the current rotation speed, correction processing correcting the “A”-phase signal and the “B”-phase signal is executed based on the value converted, and the rotation position of the rotor body is calculated by using a corrected “A”-phase signal and a corrected “B”-phase signal.

Abstract: A rotary encoder may include a first sensor unit including a first magnet, and a first magnetosensitive unit facing the first magnet; a second sensor unit including a second magnet with a plurality of pairs of N poles and S poles alternately magnetized, and a second magnetosensitive unit facing the second magnet; a circuit to generate pulses for counting from an output of the second sensor unit; and a counter to count the pulses. During activation, an angle position of the rotating body is calculated based on outputs of a first and second sensor unit, and after activation, pulse counting is counted by a counter.

Abstract: A rotary encoder may include a magnet, a magnetic sensor, and a control part configured to calculate a rotation position of the rotor body based on an output signal outputted from the magnetic sensor. The control part includes a temperature detecting section configured to detect temperature of the magnetic sensor, an offset voltage calculation section configured to calculate an offset voltage of the magnetic sensor based on the output signal from the magnetic sensor, and a storage section which stores a slope and an intercept of a primary approximate expression calculated by a relationship between temperatures previously detected by the temperature detecting section and the offset voltages previously calculated by the offset voltage calculation section. The control part executes offset voltage estimate processing based on the slope and the intercept stored in the storage section and correction processing which corrects the output signal from the magnetic sensor.

Abstract: A rotary encoder may include a first sensor unit comprising a first magnet, and a first magnetosensitive unit facing the first magnet; a second sensor unit comprising a second magnet, and a second magnetosensitive unit facing the second magnet; a circuit to generate pulses; a counter to count the pulses; a first arithmetic unit to calculate a first angle value based on an output of the first magnetosensitive unit; and a second arithmetic unit to calculate a second angle value based on an output of the second magnetosensitive unit. One of the first magnet and the first magnetosensitive unit is provided in the fixed body and the other is provided in the rotating body. One of the second magnet and the second magnetosensitive unit is provided in the fixed body and the other is provided in the rotating body.

Abstract: A rotary encoder includes a control part having a storage section storing a plurality of parameters regarding error signal components at a reference rotation speed, the error signal components respectively being superposed on an “A”-phase signal and a “B”-phase signal in proportion to a rotation speed of a rotor body, and a rotation speed calculation section structured to measure a reception interval of a requirement signal and calculate a current rotation speed of the rotor body. The control part is structured to convert a parameter stored in the storage section to a value at the current rotation speed based on a ratio between the reference rotation speed and the current rotation speed, correction processing correcting the “A”-phase signal and the “B”-phase signal is executed based on the value converted, and the rotation position of the rotor body is calculated by using a corrected “A”-phase signal and a corrected “B”-phase signal.

Abstract: The present invention is a new manufacturing system which is small one that can mount on a desk and the like. The inventors call it a DTF (Desk Top Factory) such as to mean a small factory. In the present application is described what “DTF” aims at and two main items are described in this report. 1) A manufacturing system having an automatic guided pallet (what is called “AGP”) as an automatic transport system. This AGP system is in harmony with an advantage of conventional two transfer systems of manufacturing lines that is, a flow shop type (what is called “assembly line”), which is suitable for a mass-manufacturing, has the advantage of being able to minimize the distance transferred between each process in the system and a job shop type (there is much to need a batch working) has an advantage of enabling traffic (go and return) between each process.