摘要:
A thermal regulation system includes an inertial measurement unit (IMU), one or more temperature adjusting devices in thermal communication with the IMU, and configured to adjust a temperature of the IMU from an initial temperature to a predetermined temperature, a filler provided in a space between the IMU and at least one temperature adjusting device of the one or more temperature adjusting devices, and a shared substrate configured to bear a weight of the IMU and the one or more temperature adjusting devices. The shared substrate includes a metallic board.
摘要:
A method and an apparatus for detecting a background noise of a sensor, relating to the technical field of electronics, are provided. The method for detecting a background noise of a sensor includes: receiving a sampling value output by the sensor and judging whether the sampling value falls within a background noise acceptable range; selecting the sampling value as a current background noise sampling value when the sampling value falls within the background noise acceptable range; and calculating a current background noise of the sensor according to a previous background noise and the current background noise sampling value of the sensor. Also provided is an apparatus for detecting a background noise of a sensor.
摘要:
Method for determining a pressure in a pressure cell, wherein the method consists in the fact that a measuring signal (x) is determined, which is at least proportional to a measured pressure in the pressure cell, that an output signal (y) is produced from the measuring signal (x) using a filter unit (10) having a transfer function, in that a noise signal contained in the measuring signal is at least reduced, and preferably eliminated, that a time change of the measuring signal (x) is determined, and that the transfer function is set in a function of the time change of the measuring signal (x). In addition, a measuring cell arrangement is provided.
摘要:
A position detection unit generates a position detection value PFB that indicates the position of a control target. A temperature detection unit generates a temperature detection value that indicates the temperature. A correction unit corrects the position detection value PFB. A controller generates a control instruction value SREF such that the position detection value PFB_CMP subjected to the correction matches a position instruction value PREF that indicates the target position of the control target. A driver unit applies a driving signal that corresponds to the control instruction value SREF to an actuator. The correction unit corrects the position detection value PFB such that the relation between the position detection value PFB and the actual position exhibits linearity that is uniform independent of the temperature.
摘要:
Integrated circuit systems, such as sensor systems, having on-board-diagnostic (OBD) circuits for the detection of errors presenting internal to the systems are disclosed, along with related methods. In one embodiment, an ADC multiplexer receives analog output readback from an output driver and provides a signal triggering an OBD circuit for internal error indication performed completely independent of digital-to-analog converters (DAC) and output drivers, which can be the point of failure.
摘要:
An electronic circuit that changes a charge signal into a voltage signal within a sensor suitable for direct installation in a roadway can be connected to two single-core cables that need not be highly insulating yet can realize the required power supply of the electronics. The circuit includes an integrated impedance converter (IEPE) at the output to a two-core cable and a charge amplifier with an IC1 that has two inputs. A capacitor Cc is connected in series to the signal output of the sensor at one input of the IC1. A Zener diode D is arranged between the ground output of the sensor and the second input of the IC1 and can be supplied with power by a resistor R1 in conjunction with a power supply arranged on the output side in order to adapt the potential at the second input of the IC1.
摘要:
The invention relates to a magnetic linear or rotary encoder (1) for monitoring the motion of a body, comprising: an exciting unit (8), which reproduces said motion and has at least one pair of primary permanent magnets (16, 17), which are arranged opposite one another and are magnetically connected to one another by means of a ferromagnetic yoke body (9) and form a measurement field space therebetween; a fine-resolution sensor unit (29; 29′), which is used to determine a fine position value, is arranged in a stationary manner and has a plurality of magnetic field sensors (25, 26, 27, 28); and processing electronics, which evaluate the signals of the fine-resolution sensor unit and have a data memory. Said magnetic linear or rotary encoder is characterised in that a ferromagnetic deflecting body (18) is provided, which deflects at least some of the magnetic field lines of the magnetic field produced by the primary permanent magnets in a direction permanent to the magnetisation vector of the primary permanent magnets, that the fine-resolution sensor unit is designed and arranged in such a way that the individual magnetic field sensors of the fine-resolution sensor unit are penetrated by the magnetic field lines deflected by the deflecting body by means of a perpendicular component, that at least the yoke body is made of a thermally treated, ferromagnetic material, and that the fine-resolution sensor unit does not contain a ferromagnetic component.
摘要:
In a method for operating a portable electronic device an ambient temperature (TS) of the portable electronic device (2) is sensed by means of a temperature sensor (1). It is further detected if a rechargeable energy storage (22) of the portable electronic device (2) is in a process of being recharged. If the energy storage (22) is detected to be in a process of being recharged a compensated ambient temperature (TA) is determined dependent on at least the sensed ambient temperature (TS) and dependent on information (Pi) related to a charging current for recharging the energy storage (22).
摘要:
In a portable electronic device components (2) consuming electrical power during operation may generate heat. A temperature sensor (1) for sensing an ambient temperature (TS) of the portable electronic device may as a consequence not supply the correct temperature value. It is suggested to provide a compensator (4) for determining a compensated ambient temperature (TA) dependent on at least the sensed ambient temperature (TS) and information (Pi) related to the electrical power consumed by at least one of the components (2).
摘要:
Provided is a position transducer which can be manufactured at low cost, improve the signal-to-noise ratio of an output obtained from a detector, and obtain a stable output even if the temperature changes. A position transducer 100 includes a butterfly-shaped reflector 7 attached to a rotating shaft 2 of a rotation restriction motor 1, an LED die 4 disposed to face a central portion of the reflection surface of the reflector 7, a diffused-light absorbing member disposed on the surfaces of a diffused light absorber 3 and a case 5, installed on the fixed side of the motor 1 so as to surround the reflector 7 with a distance from the reflector 7 at the rear of the reflector 7 as viewed from the LED die 4 and absorbing illumination light from the LED die 4 which has not illuminated the reflection surface, and detectors 11 mounted on the same printed circuit board 6 as the LED die 4 to detect an image reflected by the reflector 7.