摘要:
A mobile X-ray imaging apparatus includes a main body, a driving wheel provided in a lower portion of the main body and capable of moving the main body, a drive motor configured to drive the driving wheel, a motor encoder configured to detect a rotation speed of the drive motor, a driving wheel rotation state detector configured to detect a rotation state of the driving wheel, the driving wheel rotation state detector comprising a rotation state detection sensor located at the main body, and a bracket coaxially connected to the driving wheel and allowing the rotation state detection sensor to detect an ON/OFF state according to the rotation state of the driving wheel, and a controller configured to control the drive motor based on information detected by the motor encoder and the driving wheel rotation state detector.
摘要:
Embodiments of the present disclosure provide code readers for reading codes provided as patterns imprinted on objects. Light interacts with a pattern by e.g. being reflected from or transmitted through the pattern, and at least some of the light that has interacted with the pattern is incident on photosensitive element(s) of one or more photodetectors of a code reader. The code reader employs centroid-measuring photodetector(s), i.e. photodetectors that detect light in such a manner that centroid of a pattern can be obtained directly from the photocurrents generated as a result of the photosensitive elements detecting light incident thereon. The code reader is then configured to process the detected light to determine a centroid of the pattern from the detected light and to decode data encoded in the pattern based on a position of the centroid. Such code readers are substantially less complex than camera-based devices and avoid mechanical scanning.
摘要:
An encoder includes a scale, a detector, and a processor. The processor executes a second process while executing a first process, calculates a first relative position of one of the scale and the detector to the other of the scale and the detector when a calculation of a relative position between them starts, and then calculates a second relative position of the one to the other based on a relative displacement amount between them and the first relative position.
摘要:
Certain configurations described herein are directed to encoders and encoding methods. In some instances, an encoder can be used with an article support to identify an absolute position of the article support based on reading the code of the encoder.
摘要:
Die Erfindung betrifft eine Längenmesseinrichtung zur Messung der Relativlage zweier Objekte mit einem Hohlprofil (1), in dessen Innenraum ein Maßband (2) in Längsrichtung (X) verlaufend gespannt ist. Das Maßband (2) wird an den Enden mittels jeweils eines Montageblocks (3) an einem der Objekte befestigt. Im angebauten Zustand - erster Montagezustand - ist zumindest einer dieser Montageblöcke (3) in Längsrichtung (X) verschiebbar am Hohlprofil (1) angeordnet. Am Hohlprofil (1) ist ein Stellmittel (4.1) beweglich gelagert, das von einer ersten Position in eine zweite Position bringbar ist, wobei sich der Montageblock (3) in der ersten Position des Stellmittels (4.1, 4.2, 4.3) in dem ersten Montagezustand befindet und der Montageblock (3) durch Bewegen des Stellmittels (4.1, 4.2, 4.3) in die zweite Position in einen zweiten Montagezustand überführbar ist. In diesem zweiten Montagezustand ist der Montageblock (3) in einer vom Stellmittel (4.1, 4.2, 4.3) vorgegebenen Sollposition am Hohlprofil (1) festgelegt.
摘要:
The encoder includes a scale (10) provided with multiple periodic patterns having mutually different periods, a sensor (20) outputting, with a relative movement between the scale and the sensor, multiple periodic signals periodically changing respectively corresponding to the periods of the periodic patterns, and a signal processor (30) calculating a detected movement amount as a detected relative movement amount between the scale and the sensor. The signal processor calculates, by using each of the periodic signals, an accumulated movement amount which is an accumulated value of the relative movement amount between the scale and the sensor in units of one over an integer of the period of the periodic pattern corresponding to the periodic signal used, unifies the units of the accumulated movement amounts calculated by using the respective periodic signals, and calculates the detected movement amount from the accumulated movement amounts with the unified units.
摘要:
A method of decoding encoded information comprising: controlling one or more sensors to periodically check for motion of a movable component of a drug delivery device having encoded information thereon; if motion of the movable component is detected, preventing a first encoded information reading and decoding process from being performed; when motion of the movable component is not detected, performing the first encoded information reading and decoding process.
摘要:
In a photoelectric encoder (incremental encoder and absolute encoder) having a detector that is displaceable relative to a scale having a predetermined pattern (incremental pattern and pseudorandom pattern) formed thereon, the detection range, to be simultaneously detected, of the pattern is divided in at least the detectiondirection, and a plurality of light-receiving systems are provided to detect each of the respective detection areas, whereby measurement of a wide detection range is enabled by using a small-sized and simple optical system and light-receiving system.