Abstract: A modular potentiometer includes a magnetic block slide unit including a slide and a magnetic block disposed on the slide; a magnetic field sensing unit parallel to the magnetic block slide unit and including at least one Hall device and a circuit board electrically connected to the at least one Hall device, wherein the circuit board is modularized so that portions thereof are connected in series; a signal processing unit electrically connected to the magnetic field sensing unit to receive a sensing signal from the magnetic field sensing unit and thereby calculate a distance traveled by the magnetic block. Hence, due to the aforesaid segmental design, the non-contact potentiometer is easy to manufacture, mount, demount, and carry, and its manufacturing cost is reduced by modularizaton.

Abstract: A modular potentiometer includes a magnetic block slide unit including a slide and a magnetic block disposed on the slide; a magnetic field sensing unit parallel to the magnetic block slide unit and including at least one Hall device and a circuit board electrically connected to the at least one Hall device, wherein the circuit board is modularized so that portions thereof are connected in series; a signal processing unit electrically connected to the magnetic field sensing unit to receive a sensing signal from the magnetic field sensing unit and thereby calculate a distance traveled by the magnetic block. Hence, due to the aforesaid segmental design, the non-contact potentiometer is easy to manufacture, mount, demount, and carry, and its manufacturing cost is reduced by modularizaton.

Abstract: A multi-power supply device includes a plurality of power input units configured to each supply an input power and being DC power input units, AC power input units, or a combination thereof; power channel control units electrically connected to the power input units, respectively, and turned on as soon as the output end voltage of the power channel control units is lower than the input end voltage of the power channel control units, wherein the power channel control unit with the highest input voltage is turned on to output an ON voltage; and a power output unit electrically connected to the power channel control units and adapted to output the ON voltage.

Abstract: A multi-tier limit-angle protection device detects a rotation angle about a rotation axis of a driving apparatus to thereby control the operation of a driving motor of the driving apparatus. The multi-tier limit-angle protection device includes a first-axis potentiometer for generating a first-axis sensing signal, a first-axis limit-angle detecting module for generating a first-axis confirming signal, and a controller. The controller effectuates a first tier protection mechanism by determining whether a limit angle of the rotation axis is exceeded according to the first-axis sensing signal, effectuates a second tier protection mechanism by determining whether the first-axis potentiometer is operating well according to a first-axis confirming signal, and effectuates a third tier protection mechanism through its control over the driving motor.

Abstract: A non-contact adjustable hysteretic magnetic encoder includes a bipolar magnetic block, two magnetic sensing components, a storage, and a controller. After retrieving the current rotation angle by accessing a rotation angle table, the controller determines, by an encoding rule, digital logical values of a first phase signal (A-phase signal) and digital logical values of a second phase signal (B-phase signal) and outputs the digital logical values. The phase difference between a first phase signal and a second phase signal is adjusted, and a hysteresis range, also known as hysteresis angle, is adjusted, according to the grids attributed to the predetermined number of grids before the turning point and the grids attributed to the predetermined number of grids after the turning point. Hence, the non-contact adjustable hysteretic magnetic encoder features enhanced potential of expansion and marked industrial practicability.

Abstract: A microforce measuring device includes a base; a fixing component disposed at the base; a cantilever fixed at one end by the fixing component; a magnetic component disposed at the cantilever; a Hall effect sensing unit disposed at the base, aimed at the magnetic component, and spaced apart from the magnetic component by a distance to sense a change in a magnetic field of the magnetic component and generate a sensing signal; and a signal processing unit electrically connected to the Hall effect sensing unit to receive and analyze the sensing signal. Parts and components of the microforce measuring device are commercially available and cheap, so that the microforce measuring device incurs low manufacturing costs and measures a variation in a force of less than 5 gf precisely.

Abstract: A non-contact adjustable hysteretic magnetic encoder includes a bipolar magnetic block, two magnetic sensing components, a storage, and a controller. After retrieving the current rotation angle by accessing a rotation angle table, the controller determines, by an encoding rule, digital logical values of a first phase signal (A-phase signal) and digital logical values of a second phase signal (B-phase signal) and outputs the digital logical values. The phase difference between a first phase signal and a second phase signal is adjusted, and a hysteresis range, also known as hysteresis angle, is adjusted, according to the grids attributed to the predetermined number of grids before the turning point and the grids attributed to the predetermined number of grids after the turning point. Hence, the non-contact adjustable hysteretic magnetic encoder features enhanced potential of expansion and marked industrial practicability.

Abstract: A multi-tier limit-angle protection device detects a rotation angle about a rotation axis of a driving apparatus to thereby control the operation of a driving motor of the driving apparatus. The multi-tier limit-angle protection device includes a first-axis potentiometer for generating a first-axis sensing signal, a first-axis limit-angle detecting module for generating a first-axis confirming signal, and a controller. The controller effectuates a first tier protection mechanism by determining whether a limit angle of the rotation axis is exceeded according to the first-axis sensing signal, effectuates a second tier protection mechanism by determining whether the first-axis potentiometer is operating well according to a first-axis confirming signal, and effectuates a third tier protection mechanism through its control over the driving motor.

Abstract: A contactless volume control device with adjustable gain and multi-output is configured as a contactless structure with a magnetic slider and a plurality of magnet sensors. The magnetic field of the magnetic slider is sensed by the plurality of magnet sensors to generate a plurality of sensed signals, which allows an output module to provide a data table to show the position of the magnetic slider and the corresponding output voltage thereof according to the sensed signals. Furthermore, the output module is capable of storing multiple variable data to produce different outputs so as to achieve the objective of gain adjusting. Additionally, a processing unit built in the output module has a plurality of output ends so as to output multiple signals. And the magnetic slider and the plurality of magnet sensors have advantages of simple structure, easy manufacture and low cost.

Abstract: A contactless volume control device with adjustable gain and multi-output is configured as a contactless structure with a magnetic slider and a plurality of magnet sensors. The magnetic field of the magnetic slider is sensed by the plurality of magnet sensors to generate a plurality of sensed signals, which allows an output module to provide a data table to show the position of the magnetic slider and the corresponding output voltage thereof according to the sensed signals. Furthermore, the output module is capable of storing multiple variable data to produce different outputs so as to achieve the objective of gain adjusting. Additionally, a processing unit built in the output module has a plurality of output ends so as to output multiple signals. And the magnetic slider and the plurality of magnet sensors have advantages of simple structure, easy manufacture and low cost.

Abstract: The present invention relates to a steering angle sensor, which includes a substrate. A shaft bore and a first gear are adapted on the substrate. The first gear has a shaft sleeve, which passes through the shaft bore. And a steering column of a steering wheel passes through the shaft sleeve. A second gear is adapted on the substrate, and is in mesh with the first gear. A rotary sensor is located atop and assembled with the second gear. Besides, a signal processing circuit is coupled electrically with the rotary sensor. By simply meshing the first and the second gears and passing the steering column of the steering wheel through the first gear, when the steering wheel turns, the second gear will be driven to turn as well, which, in turn, drives the rotary sensor. Thereby, the number of components in the steering angle sensor is reduced, and the volume thereof is reduced effectively as well.

Abstract: An angle sensing system for sensing a rotating angle of a steering wheel includes a sensing unit, a processing unit, and a storage unit. The sensing unit detects the rotating angle of a steering column connected to the steering wheel and outputting a sensing signal based on the rotating angle. When the steering column rotates for a circle, the sensing signal presents a non-continuous status. The processing unit calculates the relative angle in a single loop of the steering column based on the sensing signal and the number of loops according to the number of the non-continuous status. The storage unit stores the information of the relative angle and the number of loops. Based on the number of loops and the relative angle, the rotating angle of the steering wheel is detected.

Abstract: The invention discloses an angle sensing system for sensing a rotating angle of a steering wheel. The angle sensing system comprises a sensing unit, a processing unit, and a storage unit. The sensing unit is for sensing the rotating angle of a steering column connected to the steering wheel and outputting a sensing signal according to the rotating angle. When the steering column rotates for a circle, the sensing signal presents a non-continuous status. The processing unit judges the relative angle in a single loop of the steering column according to the sensing signal and the number of loops according to the number of the non-continuous status. The storage unit can save the relative angle and the number of loops. According to the number of loops and the relative angle, the rotating angle of the steering wheel could be sensed.

Abstract: The present invention relates to a steering angle sensor, which includes a substrate. A shaft bore and a first gear are adapted on the substrate. The first gear has a shaft sleeve, which passes through the shaft bore. And a steering column of a steering wheel passes through the shaft sleeve. A second gear is adapted on the substrate, and is in mesh with the first gear. A rotary sensor is located atop and assembled with the second gear. Besides, a signal processing circuit is coupled electrically with the rotary sensor. By simply meshing the first and the second gears and passing the steering column of the steering wheel through the first gear, when the steering wheel turns, the second gear will be driven to turn as well, which, in turn, drives the rotary sensor. Thereby, the number of components in the steering angle sensor is reduced, and the volume thereof is reduced effectively as well.