Abstract:
A strain detector is interposed between a base and an attachment member in a structure body having the base, the attachment member, and the stainless bolts fixed the base to the attachment member. The strain detector includes an elastic member and a heat flux sensor. The elastic member is provided to compress or extend in accordance with a deformation of the stainless bolts, and the elastic member generates heat based on the compression and absorbs heat based on the extension. The heat flux sensor is deformed in accordance with the compression or the extension of the elastic member and the heat in the elastic member is transferred to the heat flux sensor. The heat flux sensor can detect a magnitude of the heat flux Fh1 as a heat stream between the inside of the elastic member and the outside, generated by the compression or the extension of the elastic member.
Abstract:
A first heat flux sensor, which outputs a first sensor signal according to a heat flux passing therethrough, a second heat flux sensor, which outputs a second sensor signal according to a heat flux passing therethrough, a thermal buffer body, which has a predetermined heat capacity, and a heat releasing body, which has a predetermined heat capacity, are provided, and the first heat flux sensor, the thermal buffer body, the second heat flux sensor and the heat releasing body are arranged in this order from a sensing subject side. The first sensor signal, which corresponds to the heat flux between the sensing subject and the thermal buffer body, is outputted from the first heat flux sensor, and the second sensor signal, which corresponds to the heat flux between the thermal buffer body and the heat releasing body, is outputted from the second heat flux sensor.
Abstract:
A monitoring device monitors a forming machine (target device). The forming machine includes a housing, a bearing attached to the housing, and a shaft placed radially inside the bearing. The monitoring device includes a plurality of heat flux sensors and a detector. The heat flux sensors are provided on the radially outer side of the bearing and spaced from each other in the circumferential direction of the bearing. The heat flux sensors output a signal corresponding to heat fluxes through faces thereof on the bearing side and faces thereof on the other side. The detector detects a load applied radially to the shaft or bearing, based on the output from the heat flux sensors.
Abstract:
A heat flow measurement apparatus is provided with a heat flux sensor and a thermocouple sheet. The heat flux sensor includes an insulation substrate, a plurality of interlayer connection members, a front surface wiring pattern, a back surface wiring pattern, a front surface protective member and a back surface protective member. The thermocouple sheet includes a thermocouple, a first insulation sheet and a second insulation sheet, and is fixed to a portion where the front surface protective member and the back surface protective member extend in a surface direction from the insulation substrate.
Abstract:
Provided is a monitoring apparatus configured to monitor the pressure state of a fluid in a target apparatus having a chamber in which at least one of compression and expansion of the fluid is performed. The monitoring apparatus includes a heat flux sensor provided for the target apparatus and configured to measure a heat flux between inside and outside of the chamber. The monitoring apparatus includes a determining unit configured to determine the pressure state of the fluid based on a measurement result of the heat flux sensor.
Abstract:
In a runout detection device for detecting runout of a rotating member, a displacement unit abuts on the rotating member, and is displaced in accordance with displacement of the rotating member while the rotor abuts on the displacement unit. An elastic member elastically deforms in accordance with displacement of the displacement unit. A heat flux sensor detects a heat flux generated by elastic deformation of the elastic member. The runout detection device is configured to detect runout of the rotating member based on the heat flux detected by the heat flux sensor.
Abstract:
A tension measuring apparatus includes a displacement part that is displaced in accordance with tension or a change of the tension of a wire rod to be measured when the displacement part is caused to abut against the wire rod to receive the tension of the wire rod, an elastic body that is elastically deformed in accordance with displacement of the displacement part, and a heat flow sensor that detects a heat flow caused by elastic deformation of the elastic body.
Abstract:
A load change detection apparatus is provided with a base member, an elastic member, a first plate, a fixing member and heat flow sensors. The elastic member deforms according to a changed load applied to the elastic member, received by the receiving member. The first plate supports a surface of the elastic member on a side of the base member. The fixing member fixes the lower plate and the elastic member to the base member. The heat flow sensors, provided between the base member and the lower plate, output signals according to heat flowing between the lower plate and the base member. The heat flows due to heat generated or heat absorbed when the elastic member changes the elasticity shape thereof. Stress occurring when the elastic member deforms, is shut off by the first plate, thus direct transmission of the stress to the heat flow sensors is avoided.
Abstract:
As the first conductive paste, a paste is used which is made by adding an organic solvent to powder of alloy in which a plurality of atoms keep a given crystal structure constant. As the second conductive paste, a paste is used which is made by adding an organic solvent to powder of metal different in kind from the alloy. In a step of making the stack body, cavities are formed in the stack body. In a uniting step, the cavities work to facilitate flow of thermoplastic resin to absorb pressure acting in a direction different from a direction in which pressure exerted on the first conductive paste to unite the stack body, thereby resulting in an increase in pressure for the uniting to solid-state sinter the first conductive paste to make the first layer-to-layer connecting member.
Abstract:
To provide a heat generating device which is capable of minimizing the application of a large amount of heat through a contact with the heat generating device. The heat generating device includes an insulating base which contains a thermoplastic resin and has a front surface and a reverse surface and in which a plurality of via holes are formed to extend through a thickness, and heating resistors which are disposed in the via holes and generated heat when energized. Some of the heating resistors are connected in parallel.