The current invention is a system and application that provides key insight into the technological processes that encompass a welding calculator apparatus consisting of a calculator casing, an optical rotary encoder in the calculator casing for providing weld length data, a time counter in the calculator casing for providing weld time data and a microcontroller device in the calculator casing for processing weld length data and weld time data, weld travel speed data and heat input data

An apparatus for measuring a position according to an embodiment includes a light source emitting light to an inner surface of a pipe, a first lens receiving reflected light from which light emitted by the light source is reflected by the inner surface and converting the reflected light into parallel light parallel to an optical axis, a second lens disposed on an optical path of the parallel light and converting the parallel light into a convergent refracted light, an image sensor disposed on an optical path of the refracted light, one or more elastic members disposed between the first lens and the second lens, and a plurality of wheels that are coupled to a side surface of the first lens and are in close contact with the inner surface to be rotated by movement of the moving body.

The present disclosure provides a sensory cable (100). The sensory cable (100) includes a central strength member (106). In addition, the sensory cable (100) includes a first layer (108). The first layer (108) surrounds the central strength member (106). The first layer (108) is made of low smoke zero halogen. Further, the sensory cable (100) includes a plurality of optical units (110). Furthermore, the sensory cable (100) includes a second layer (112). The second layer (112) is made of a plurality of glass yarns. Moreover, the sensory cable (100) includes a first jacket layer (114). The first jacket layer (114) is made of either polyethylene or polypropylene. Also, the sensory cable (100) includes a second jacket layer (116). The second jacket layer (116) is made of nylon.

An encoder applied to a rotatable device including a code disc set, at least one bearing, a bearing housing, a main housing, a sensor and an elastic assembly. The code disc set is disposed on a rotation end of the rotatable device. The bearing is disposed around the rotation end, and the bearing housing is disposed around the bearing. The main housing is connected with a first end of the bearing housing. The sensor is disposed on the main housing and corresponds to the disc wheel set, and there is an interval between the sensor and the code disc set. The elastic assembly is connected with a second end of the bearing housing and a fixing end of the rotatable device. Therefore, the interval between the sensor and the code disc set is maintained to be fixed, and the good position detection performance and stable signals are obtained.

The present disclosure refers to a scale element for an optical measuring device having an incremental encoder and an interferometric sensor system, the scale element having a reflection layer on one of the surfaces of the scale element, which reflection layer is provided to cooperate with the interferometric sensor system, and the scale element further having a material measure, which is arranged in a direction pointing away from and spaced apart from the reflection layer and is provided to cooperate with the incremental sensor system, the reflection layer being configured and designed in such a way that the reflection layer is transmissive for light of certain wavelengths and reflective for other wavelengths.

In one example, an encoder strip mounting system includes an encoder strip having a first end, a second end opposite the first end, and an intermediate part between the first end and the second end, and a retainer to prevent the intermediate part of the encoder strip from shifting lengthwise with respect to an anchor point for the retainer located within a span of the intermediate part of the encoder strip.

A rotary position sensor is includes a static portion that comprises a first board and a second board and a rotatable portion that comprises a third board. The second board comprises a first planar coil; and the third board comprises a second planar coil as well as means for generating luminance. The first board comprises means for receiving the generated luminance and the first planar coil of the second board is configured to transmit power to said second planar coil of said third board via inductance. The power received by said second planar coil is configured to supply a current to said means for generating luminance; and said means for generating luminance is configured to emit a luminance signal which has a luminance level.

A vibration sensing optical fiber cable is provided. The cable includes at least one optical fiber embedded in the cable jacket such that vibrations from the environment are transmitted into the cable jacket to the optical fiber. The cable is configured in a variety of ways, including through spatial arrangement of the sensing fibers, through acoustic impedance matched materials, through internal vibration reflecting structures, and/or through acoustic lens features to enhance sensitivity of the cable for vibration detection/monitoring.

The present disclosure provides a sensory cable (100). The sensory cable (100) includes a central strength member (106). In addition, the sensory cable (100) includes a first layer (108). The first layer (108) surrounds the central strength member (106). The first layer (108) is made of low smoke zero halogen. Further, the sensory cable (100) includes a plurality of optical units (110). Furthermore, the sensory cable (100) includes a second layer (112). The second layer (112) is made of a plurality of glass yarns. Moreover, the sensory cable (100) includes a first jacket layer (114). The first jacket layer (114) is made of either polyethylene or polypropylene. Also, the sensory cable (100) includes a second jacket layer (116). The second jacket layer (116) is made of nylon.

A sensor configured to detect displacement of a rotation angle of a shaft due to a rotation or a turn of the shaft, the sensor includes: a bearing rotatably supporting the shaft; and a housing including a bearing hole to which the bearing is fixed. The shaft and an inner circumferential surface of the bearing are fixed to each other by an adhesive agent, and an outer circumferential surface of the bearing and an inner circumferential surface of the bearing hole of the housing are fixed to each other by an adhesive agent.