Abstract: The disclosure relates to a microelectromechanical apparatus including a substrate, a stationary electrode, a movable electrode, and a heater. The substrate includes an upper surface, an inner bottom surface, and an inner side surface. The inner side surface surrounds and connects with the inner bottom surface. The inner side surface and the inner bottom surface define a recess. The stationary electrode is disposed on the inner bottom surface. The movable electrode covers the recess. The movable electrode, the inner bottom surface, and the inner side surface define a hermetic chamber. The heater is disposed on the movable electrode and located above the hermetic chamber.

Abstract: A tool holder having force sensors includes a first connection portion, a second connection portion, a first sensing portion, a second sensing portion, at least one first force sensor and at least one second force sensor. The first connection portion connects a cutting tool along an axis. The second connection portion connects a spindle along the axis. The first sensing portion having at least one first hole connects the first connection portion along the axis. The second sensing portion having at least one second hole connects the second connection portion and the first sensing portion. The first force sensor disposed in the first hole is to sense a torsional force. The second force sensor disposed in the second hole is to sense a bending force. The first sensing portion has a bending stiffness greater than that of the second sensing portion.

Abstract: A microelectromechanical apparatus includes a base and a thin film including a stationary part disposed on the base, a peripheral part, a central part surrounded by the peripheral part, and a first and second elastic part. The first elastic part is connected to the stationary part and the peripheral part. The second elastic part is connected to the peripheral part and the central part. When low frequency signal is input to a first electrode of the first elastic part, the peripheral part and the and the central part respectively vibrate with a first and second low-frequency amplitudes. When high-frequency signal is input to a second electrode of the second elastic part, the peripheral part and the central part respectively vibrate with a first and second high-frequency amplitudes. A difference between the first and second low-frequency amplitudes is smaller than a difference between the first and second high-frequency amplitudes.

Abstract: A temperature control circuit for an electronic device is provided. The temperature control circuit includes a temperature detector, a status detection circuit and a control circuit. The temperature detector is configured to detect a temperature of the electronic device and generate first evaluation information. The status detection circuit is configured to detect a work status of at least one circuit module in the electronic device and generate second evaluation information. The control circuit is configured to adjust at least one electronic parameter of the electronic device according to the first evaluation parameter and the second evaluation parameter to control the temperature of the electronic device.

Abstract: A pressure sensor with calibration device includes a casing, a diaphragm, a sensing element, a medium, and at least one calibration element. The diaphragm is disposed on the casing, wherein the casing and the diaphragm define an accommodating space. The sensing element is disposed in the casing. The medium is filled in the accommodating space and in contact with the sensing element. The at least one calibration element is adjustably disposed at the casing and extended into the accommodating space to be in contact with the medium, wherein when the at least one calibration element is moved relative to the casing in a direction toward the accommodating space or in a direction away from the accommodating space, the at least one calibration element changes the pressure applied to the medium. The pressure sensor with calibration device adjusts the pressure value sensed by the sensing element via the calibration element.

Abstract: The disclosure relates to a force measurement device including central portion, fixing portion, first and second sensing portions, and first and second electromechanical elements. The first sensing portion has first natural frequency. The first sensing portion is connected to the central portion. The second sensing portion has a second natural frequency. The second sensing portion is connected to the first sensing portion and the fixing portion. The first electromechanical element is disposed on the first sensing portion to measure a first vibration amplitude. The second electromechanical element is disposed on the second sensing portion to measure a second vibration amplitude. When the central portion is subjected to a first force, the first vibration amplitude is larger than the second vibration amplitude. When the central portion is subjected to a second force, the first vibration amplitude is smaller than the second vibration amplitude.

Abstract: A spindle shaft device including a shaft, a first torque sensor, and a second torque sensor. The shaft extends along an axial direction and comprises a first side portion, a second side portion, and a central portion located between the first side portion and the second side portion. The central portion has a central torsional rigidity with respect to the axial direction. The first side portion has a first torsional rigidity with respect to the axial direction. The second side portion has a second torsional rigidity with respect to the axial direction. The first torsional rigidity is smaller than the central torsional rigidity. The second torsional rigidity is smaller than the central torsional rigidity. The first torque sensor is disposed on the first side portion. The second torque sensor is disposed on the second side portion.

Abstract: A microelectromechanical sensing apparatus with calibration function comprises a microelectromechanical sensor and an IC chip. The microelectromechanical sensor comprises a proof mass, a movable driving electrode and a movable sensing electrode disposed on the proof mass, and a stationary driving electrode and stationary sensing electrode disposed on a substrate, wherein the sensing electrodes output a sensing signal when the proof mass vibrates.

Abstract: A piezoelectric system comprises a piezoelectric sensor, a voltage stabilizer, a discharger and an operation sensor. The piezoelectric sensor outputs a sensing signal through a sensor output terminal according to a rate of change of pressure. The voltage stabilizer has a positive terminal electrically connecting with the sensor output terminal. The voltage stabilizer receives the sensing signal, stores the energy of the sensing signal, and keeps the voltage of the sensing signal as a constant when the rate of change of pressure is zero. The discharger has a first terminal connecting with the positive terminal, a second terminal coupled to ground, and a control terminal receiving a trigger signal to control the first terminal to conduct with or not conduct with the second terminal. The operation sensor electrically connects to the control terminal for sensing an operation generating the pressure and outputs the trigger signal accordingly.

Abstract: A calibration system for calibrating pressure sensor comprises communication pipe, base, inlet valve, outlet valve, pump, inlet pipe, heater and reference pressure sensor. The communication pipe has first and second openings. The base comprises chamber body and outlet being disposed at the chamber body. The inlet valve is disposed at the first opening. The chamber body is connected to the second opening so as to define a space between the inlet valve and the outlet valve. The heater is to heat a fluid in the space. The reference pressure sensor is configured to measure a pressure of the fluid. The at least one target pressure sensor is detachably mounted on the chamber body via the base so as to measure the pressure of the fluid in the space.

Abstract: A calibration system for calibrating pressure sensor comprises communication pipe, base, inlet valve, outlet valve, pump, inlet pipe, heater and reference pressure sensor. The communication pipe has first and second openings. The base comprises chamber body and outlet being disposed at the chamber body. The inlet valve is disposed at the first opening. The chamber body is connected to the second opening so as to define a space between the inlet valve and the outlet valve. The heater is to heat a fluid in the space. The reference pressure sensor is configured to measure a pressure of the fluid. The at least one target pressure sensor is detachably mounted on the chamber body via the base so as to measure the pressure of the fluid in the space.

Abstract: An environment-friendly carry device is provided, including: a main body, including at least one through hole, the at least one through hole being configured for receiving and holding at least one object; at least one handle portion, connected with the main body and configured for gripping; and at least two wing portions, connected with the main body.

Abstract: A pressure sensor with calibration function includes a casing, a diaphragm, a sensing element, a medium, and at least one calibration element. The diaphragm is disposed on the casing, wherein the casing and the diaphragm define an accommodating space. The sensing element is disposed in the casing. The medium is filled in the accommodating space and in contact with the sensing element. The at least one calibration element is adjustably disposed at the casing and extended into the accommodating space to be in contact with the medium, wherein when the at least one calibration element is moved relative to the casing, the at least one calibration element changes the pressure applied to the medium.

Abstract: A spindle shaft device including a shaft, a first torque sensor, and a second torque sensor. The shaft extends along an axial direction and comprises a first side portion, a second side portion, and a central portion located between the first side portion and the second side portion. The central portion has a central torsional rigidity with respect to the axial direction. The first side portion has a first torsional rigidity with respect to the axial direction. The second side portion has a second torsional rigidity with respect to the axial direction. The first torsional rigidity is smaller than the central torsional rigidity. The second torsional rigidity is smaller than the central torsional rigidity. The first torque sensor is disposed on the first side portion. The second torque sensor is disposed on the second side portion.

Abstract: A microelectromechanical infrared sensing apparatus includes a substrate, a sensing plate, a plurality of supporting elements and a plurality of stoppers. The substrate includes an infrared reflecting layer. The sensing plate includes an infrared absorbing layer. The supporting elements are disposed on the substrate, and each of the supporting elements is connected to the sensing plate, such that the sensing plate is suspended above the infrared reflecting layer. The stoppers are disposed between the substrate and the sensing plate. When the sensing plate moves toward the infrared reflecting layer and the stoppers contact both the substrate and the sensing plate, the distance between the sensing plate and the infrared reflecting layer is substantially equal to the height of at least one of the stoppers.

Abstract: A management method for managing a memory storage device compatible with a PCIe (PCI Express) standard is disclosed. The memory storage device has a plurality of pins configured to couple to a host system. The management method includes: transmitting a first command to the memory storage device through at least one first pin among the pins to control the memory storage device to enter a target link status; and when the memory storage device is in the target link status, transmitting a second command to the memory storage device through a second pin among the pins to control the memory storage device to leave the target link status. The second pin is not a pin dedicated to control the memory storage device to enter or leave the target link status.

Abstract: A vibration sensor with monitoring function is provided, which includes a substrate, a microelectromechanical vibration sensor chip and an application-specific integrated circuit chip. The microelectromechanical vibration sensor chip is disposed on the substrate and detects a vibration applied to an object to generate a plurality of vibration signals. The application-specific integrated circuit chip is disposed on the substrate and electrically connected to the microelectromechanical vibration sensor chip, which includes a sampling module, a transform module and an analysis module. The sampling module receives and converts the vibration signals into a plurality of digital signals, and filters the digital signals to generate a plurality of time-domain data. The transform module transforms the time-domain data into a frequency-domain data according to a predetermined number.

Abstract: A linear guideway with an embedded sensor includes a track, a slider, a plurality of rolling members, and a sensing module. The track extends in a first direction and has a first recess. The slider can move in the first direction and include a second recess, a channel, at least one hole, and a deforming region. The channel is formed by coupling the first recess and the second recess, and extends in the first direction. The hole extends from the surface of the slider along the insertion axis and into the slider. The rolling members are disposed in the channel. The sensing module is disposed in the hole, and contacts the deforming region to detect the amount of deformation.

Abstract: A management method for managing a memory storage device compatible with a PCIe (PCI Express) standard is disclosed. The memory storage device has a plurality of pins configured to couple to a host system. The management method includes: transmitting a first command to the memory storage device through at least one first pin among the pins to control the memory storage device to enter a target link status; and when the memory storage device is in the target link status, transmitting a second command to the memory storage device through a second pin among the pins to control the memory storage device to leave the target link status. The second pin is not a pin dedicated to control the memory storage device to enter or leave the target link status.

Abstract: The disclosure relates to a microelectromechanical apparatus including a substrate, a stationary electrode, a movable electrode, and a heater. The substrate includes an upper surface, an inner bottom surface, and an inner side surface. The inner side surface surrounds and connects with the inner bottom surface. The inner side surface and the inner bottom surface define a recess. The stationary electrode is disposed on the inner bottom surface. The movable electrode covers the recess. The movable electrode, the inner bottom surface, and the inner side surface define a hermetic chamber. The heater is disposed on the movable electrode and located above the hermetic chamber.