The present disclosure relates to a thermal-acoustic-vibration three-parameter integrated in-situ sensor and system with a high-temperature-resistant and high-pressure-resistant structure. The provided thermal-acoustic-vibration three-parameter integrated in-situ sensor with a high-temperature-resistant and high-pressure-resistant structure comprises a heat detection device, a sound detection device and a vibration detection device; and the sound detection device and the vibration detection device are distributed on two sides of the heat detection device. When heat, sound and vibration need to be detected, only spectra of light signals emitted by the heat detection device, the sound detection device and the vibration detection device need to be obtained, and heat information, sound information and vibration information to be detected are obtained through the corresponding relation between the spectra of the optical signals emitted by the heat detection device, the sound detection device and the vibration detection device and heat information, sound information and vibration information to be detected.

A fiber optic temperature probe is disclosed. The fiber optic temperature probe includes a probe shaft containing an optical fiber. An optical temperature sensor element is coupled to the probe shaft and configured to be excited by light from the optical fiber and emit light back to the optical fiber. A thermally conductive plate is coupled to the probe shaft and interfaces with the optical temperature sensor element. Baffling extends from the probe shaft and surrounds the edges of the thermally conductive plate.

A fiber optic temperature probe is disclosed. The fiber optic temperature probe includes a probe shaft containing an optical fiber. An optical temperature sensor element is coupled to the probe shaft and configured to be excited by light from the optical fiber and emit light back to the optical fiber. A thermally conductive plate is coupled to the probe shaft and interfaces with the optical temperature sensor element. Baffling extends from the probe shaft and surrounds the edges of the thermally conductive plate.

There is provided a fiber optic temperature probe having a base, a first tube connected to the base, a second tube provided coaxially within the first tube, a probe tip extending through an opening in a distal end of the first tube; and an optical fiber extending from within the base through an opening in the proximal end of the first tube and being substantially coaxial with respect to the first tube. There is also provided a fiber optic temperature probe having a base, a first tube connected to the base, a probe tip extending through an opening in a distal end of the first tube, an optical fiber extending from within the base through an opening in the proximal end of the first tube and being substantially coaxial with respect to the first tube, and a first lens positioned between the probe tip and the optical fiber.

The invention relates to a system and a method for monitoring the state of at least one over voltage protection component. The system has a transmission unit and a connection assembly coupled to the transmission unit. The system additionally has at least one measuring assembly coupled to the connection assembly. The at least one measuring assembly is designed to be arranged in at least one over voltage protection component. The system additionally has an analysis unit coupled to the at least one measuring assembly.

An object provide a technique capable of measuring temperature on the basis of optically detected magnetic resonance with higher precision, The object is achieved by a method for measuring the temperature of an object on the basis of optically detected magnetic resonance of an inorganic fluorescent particle, including (a) irradiating the object, containing the inorganic fluorescent particle with each of multiple microwaves having different frequencies, (b) measuring the fluorescence intensities of the inorganic fluorescent particle with individual photon counters at the time of irradiation of respective microwaves, (c) correcting the fluorescence intensities on the basis of dependencies in the number of pulse measurements between the photon counters and (d) Calculating the temperature of the object on the basis of the obtained fluorescence intensity with the correction values.

A thermo-fluorescent optical fiber including a core able to propagate light and a sheath, the fiber carrying at least at one of its ends or at one site along its length, devoid of sheath, the optical fiber being provided with a probe consisting of a matrix having thermo-fluorescent particles, the matrix being photo-polymerized. Also provided is a method that relates to manufacturing such an optical fiber as well as to its applications.

Examples of a fiber optic temperature measuring system for measuring a temperature of a surface at multiple points simultaneously in real time is provided. The fiber optic temperature measuring system comprises a fiber optic probe with fiber bundle with plurality of individual fibers with thermographic phosphor at the fiber's tip and a high-speed camera. Invention allows accurate multipoint measurement of ESC' surface temperature. The thermographic phosphor is embedded in a nudge at the tip of each individual fibers or on the surface (under the surface) at predetermined positions.

An optical temperature sensing system is disclosed which includes a fiber optic sensor as a primary temperature sensor for reading a temperature of a measured object or a measured environment. The temperature probe is coupled to a converter which generates using solid-state electronic components without software, a temperature output. A temperature sensing system is also disclosed that includes a temperature sensor for reading a temperature of a measured object, and a dual converter module comprising a first converter to provide a primary temperature sensor signal, and a second converter to generate a secondary temperature sensor signal from a signal provided by the first converter. An optical temperature sensor is also described, with a conversion module that generates an output that mimics the output of a thermistor or a thermocouple.

Examples of a fiber optic temperature measuring system for measuring a temperature of a surface at multiple points simultaneously in real time is provided. The fiber optic temperature measuring system comprises a fiber optic probe with fiber bundle with plurality of individual fibers with thermographic phosphor at the fiber's tip and a high-speed camera. Invention allows accurate multipoint measurement of ESC' surface temperature. The thermographic phosphor is embedded in a nudge at the tip of each individual fibers or on the surface (under the surface) at predetermined positions.