The present application relates to a photon measuring and reading device, which belongs to the field of detection equipment, including a mounting seat and a photon counter. The photon counter can move up and down on the mounting seat. The mounting seat is provided with a vertically arranged sliding trough, and the photon counter is provided with a sliding rod slidably connected with the sliding trough. A double head motor is arranged on the mounting base, and a linkage mechanism is arranged between the output shaft at the tail end of the double head motor and the sliding rod. The bottom end of the photon counter is fixed with a box body.

The present application relates to a photon measuring and reading device, which belongs to the field of detection equipment, including a mounting seat and a photon counter. The photon counter can move up and down on the mounting seat. The mounting seat is provided with a vertically arranged sliding trough, and the photon counter is provided with a sliding rod slidably connected with the sliding trough. A double head motor is arranged on the mounting base, and a linkage mechanism is arranged between the output shaft at the tail end of the double head motor and the sliding rod. The bottom end of the photon counter is fixed with a box body.

There is provided an optical encoder with alignable relative positions between elements including an encoding medium, a sensor package and a memory. The sensor package includes a photodiode array and two alignment photodiodes opposite to the encoding medium. The memory records an alignment pattern associated with output signals of the two alignment photodiodes when the encoding medium and the sensor package are at nominal operating positions. When the encoding medium and the sensor package are not at the nominal operating positions, the relative position alignment is performed by adjusting current relative positions between the encoding medium and the sensor package to cause a current pattern associated with output signals of the two alignment photodiodes to be identical to the alignment pattern.

In this boom slewing angle detection device, a slewing angle detecting gear is attached to an end of a shaft of a pinion gear that meshes with a ring gear formed on a slewing bearing rotatably supporting a crane boom, and the amount of rotation of the slewing angle detecting gear is detected by a slewing-angle-detecting proximity sensor. The slewing angle detecting gear is not meshed with the ring gear or the pinion gear, which compose a slewing force transmission mechanism; thus, grease, and the like, do not adhere to the slewing angle detecting gear, and external teeth for detection of the slewing angle detecting gear are not subject to wear, so accurate slewing angle detection is possible.

In this boom slewing angle detection device, a slewing angle detecting gear is attached to an end of a shaft of a pinion gear that meshes with a ring gear formed on a slewing bearing rotatably supporting a crane boom, and the amount of rotation of the slewing angle detecting gear is detected by a slewing-angle-detecting proximity sensor. The slewing angle detecting gear is not meshed with the ring gear or the pinion gear, which compose a slewing force transmission mechanism; thus, grease, and the like, do not adhere to the slewing angle detecting gear, and external teeth for detection of the slewing angle detecting gear are not subject to wear, so accurate slewing angle detection is possible.

An optical encoder includes first, second, and third light receiving elements (A, B, C) that are sequentially disposed and adjacent to each other; and a detection signal generation unit (50) that outputs a detection trigger (Ts) when an output level of the second light receiving element (B) that receives incident light after the first light receiving element (A) is higher than an output level of the first light receiving element A, and outputs a non-detection trigger (Te) when an output level of the third light receiving element (C) that receives incident light after the second light receiving element (B) is higher than the output level of the second light receiving element (B).

An encoder comprises first and second sensors which reads first and second tracks, the first and second sensors being arranged in a radial direction to face each other, and a processor which generates a first position signal based on first and second periodic signals based on a signal obtained by reading the first and second tracks by the first sensor, and generates a second position signal based on third and fourth periodic signals based on a signal obtained by reading the first and second tracks by the second sensor, wherein the processor generates an absolute position signal indicating an absolute position of at least one of the scale, the first sensor, or the second sensor based on the first and second position signals and the first and third periodic signals.

An encoder comprises first and second sensors which reads first and second tracks, the first and second sensors being arranged in a radial direction to face each other, and a processor which generates a first position signal based on first and second periodic signals based on a signal obtained by reading the first and second tracks by the first sensor, and generates a second position signal based on third and fourth periodic signals based on a signal obtained by reading the first and second tracks by the second sensor, wherein the processor generates an absolute position signal indicating an absolute position of at least one of the scale, the first sensor, or the second sensor based on the first and second position signals and the first and third periodic signals.

An encoder scale includes a tabular base material and an optical pattern provided above one surface of the base material, a first region and a second region being disposed side by side above the optical pattern. The first region includes a resin layer disposed above the base material and including photosensitive resin and a metal film disposed above the resin layer and formed of a metal material. The surface of the first region is configured mainly by a first surface having a normal line in the thickness direction of the base material. The surface of the second region is configured mainly by a second surface inclined with respect to the first surface.

An input/output control unit (120) includes a storage, an input/output controller (126), an analog signal input interface (129), and a pulse signal input interface (127A). The input/output controller (126) includes a pulse signal input block (1411) to generate a trigger signal, an A/D conversion block (1431) to generate wafer thickness information by analog-to-digital conversion of an analog signal, a logger block (1501) to, in synchronization with the trigger signal, store the wafer thickness information a preset table A in the storage, a counter block (1461) to continuously generate, from the digital signal, count value information indicating a count value and output the generated information, and a logger block (1502) to, in synchronization with the trigger information, store the count value information, in association with the wafer thickness information, in a table TB in the storage (124).