Taiwan Alpha Electronic Co., Ltd.

Wei-Liang Liu

Tzu-Hsuan Huang

Chien-Chih Ho

Huang-Chao Chan

Chao-Jen Ho

Hsin-Tsun Tsai

A pressure sensor includes a conductive substrate, a ring-shaped spacer, an inner spacer and a sensing circuit substrate. The conductive substrate includes a conductive-substrate body and a conductive layer. The conductive layer is disposed on the conductive-substrate body. The ring-shaped spacer and the inner spacer are disposed on the conductive-substrate body. The sensing-circuit substrate, disposed on the ring-shaped spacer and the inner spacer, includes a circuit-substrate body, a first sensing circuit and a second sensing circuit. The first sensing circuit and the second sensing circuit are disposed on opposing sides of the circuit-substrate body, and a plurality of first finger circuits of the first sensing circuit and a plurality of second finger circuits of the second sensing circuit are interlaced. The first sensing circuit and the second sensing circuit are densely arranged at the center of the conductive layer and less densely arranged on both sides of the conductive layer.

Pressure sensor enhancing variation percentages under high pressures

A stretch sensor includes a first elastic insulating layer, a first elastic conductive layer, an elastic dielectric layer, a second elastic conductive layer and a second elastic insulating layer sequentially piled together thereon. The first and the second elastic insulating layers include the same elastic resin, and the first and the second elastic conductive layer include the same elastic resin and the same conductive material. The elastic dielectric layer includes the elastic resin and a dielectric material, in which the dielectric material comprises at least one of an SrCaTiOcompound, an SrBaTiOcompound, and a BaTiOcompound so as to make the dielectric constant of the dielectric material within 15.65-2087.3 F/m.

Stretch sensor with elastic dielectric layer

A bend sensor includes a flexible circuit substrate, an insulation pad and a flexible conductive substrate. The flexible circuit substrate includes an insulating body, a first circuit and a second circuit. The first and second circuits are disposed on opposing sides of the insulating body. The first circuit has first fingers, while the second circuit has second fingers. The insulation pad disposed on the insulating body exposes the first and second fingers. The flexible conductive substrate disposed on the insulating pad has a conductive layer separated from the first fingers and the second fingers. While the bend sensor is bent, the conductive layer on the flexible conductive substrate would deform toward the flexible circuit substrate so as to form multiple contacts with the first and second fingers. Through these contacts, a number of resistors are formed to contribute a detectable resistance for the corresponding bending amplitude to be further realized.

Bend sensor

A lamination type stretch sensor includes a first elastic insulating layer, a first elastic conductive layer, an elastic dielectric layer, a second elastic conductive layer and a second elastic insulating layer sequentially piled together thereon. The first elastic conductive layer includes a plurality of first coupling sections and a plurality of first connecting sections. The second elastic conductive layer includes a plurality of second coupling sections and a plurality of second connecting sections disposed between the second coupling sections. The elastic dielectric layer is deposited between the first elastic conductive layer and the second elastic conductive layer. When the composite lamination type stretch sensor is stretched, the first elastic conductive layer and the second elastic conductive layer respectively generate displacements along different directions to make the coupling ratio between the first coupling sections and the second coupling sections varies simultaneously to accordingly obtain a corresponding capacity, so as to determine the deformation of the lamination type stretch sensor in accordance with the corresponding capacity.

Lamination type stretch sensor for making different layers generates displacement along different directions when stretched

A slide type variable resistor with a resistance adjusting member, comprising a housing, two side rails, a circuit module, a control member and a base. The housing includes a housing limiting hole and a space. The two side rails are disposed in the space. The circuit module is disposed in the space and has a resistive circuit. The control member is disposed in the space. The control member includes an object, at least one metal brush, a handle and an elastic member. The object having a bump, and the elastic member is sleeved at the bump.

Slide type variable resistor with resistance adjusting member

A variable resistor with a light emitting element includes a circuit board, a housing and a slide assembly. The circuit board extending in a longitudinal direction has a circuit arrangement surface to arrange thereon a resistive circuit and a power circuit. The housing fixed to the circuit board so as to form a slide space has a sliding slot extending in the longitudinal direction. The slide assembly further includes a slidable member, a fader set, a light emitting element, a resistive circuit brush and two light-emitting element brushes. The fader set fixed at the slidable member penetrates the sliding slot. The light emitting element in an accommodating groove of the slidable member projects a light beam toward the fader set. The resistive circuit brush electrically connects the resistive circuit. The two light-emitting element brushes electrically bridge the power circuit and the light emitting element.

Variable resistor with light emitting element

A finger movement-sensing assembly includes a flexible substrate, a bend-sensing circuit structure and a depression-sensing circuit structure. The flexible substrate extends in a first direction for use on a finger. The flexible substrate has an outer extension section and an inner deflection section. The outer extension section is applied to be mounted onto a back of the finger, and the inner deflection section is applied to be mounted onto a pulp of the finger. The bend-sensing circuit structure is disposed on the outer extension section to produce a bend-sensing signal. The depression-sensing circuit structure is disposed on the inner deflection section to produce a depression-sensing signal.

Finger movement-sensing assembly

A rotary variable resistor includes a resistance circuit module, a fixation frame, a brush assembly and a rotor shaft. The resistance circuit module has a circuit board, an output circuit, three input circuits and a resistance ring. The output circuit includes a brush contact port having an annular brush contact area and an output port extending out from the brush contact port. Each input circuit has a resistor contact end and an input port. The three resistor contact ends are evenly annularly separated. The resistance ring co-axially and annularly spaced to the brush contact port contacts the resistor contact ends. The fixation frame is fixedly mounted on the resistance circuit module. The brush assembly rotatably restrained by the fixation frame bridges the annular brush contact area and the resistance ring. The rotor shaft for driving the brush assembly is connected with the brush assembly.

Rotary variable resistor

A position sensor includes a variable capacitor assembly and a circuit board. The variable capacitor assembly includes a baseboard and a dielectric coupling element. The baseboard includes a baseboard body, a grounding electrode and two power electrodes. The grounding electrode is disposed nearby one side of the baseboard body. The two power electrodes are disposed separately near the other side of the baseboard body. The dielectric coupling element is spaced with the two power electrodes and the grounding electrode, and operable to be moved along a moving path. A covering condition is varied when the dielectric coupling element is operated to move along the moving path. When a power is alternatively applied to the power electrodes, a pair of capacitance values between the grounding electrode and the power electrodes is varied with the covering condition to accordingly determine a relative position of the coupling element along the moving path.

Position sensor and variable capacitor assembly thereof

A touch-type variable resistor structure includes a resistor-base plate, a conductive base plate and a separator member. The resistor-base plate further includes a main plate body and a resistance layer. The resistance layer extended along an extension direction is located on the main plate body. The conductive base plate located on the resistor-base plate includes an electricity-conductive layer facing the resistor-base plate. The separator member located between the resistor-base plate and the conductive base plate further has a central opening. One of the main plate body and the main conductive plate body is formed as a flexible-touch base plate. While the flexible-touch base plate is depressed, part of the electricity-conductive layer would pass through the central opening to electrically couple the resistance layer.

Touch-type variable resistor structure

A slide-type variable resistor comprises a shell, two side guiding tracks, two end locking parts, a variable resistor circuit base, and a manipulating device. The two side guiding tracks are symmetrically assembled in the allocation space. The two end locking parts are symmetrically pressing against the two side guiding tracks respectively to have the two side guiding tracks positioned in the allocation space. The variable resistor circuit base is assembled to the shell and utilized for pressing against the two end locking parts to have the two end locking parts and the two side guiding tracks fixed in the allocation space. The manipulating device comprises a brush base, at least a brush, and a bar. The brush base has two symmetrically positioned sliding tracks slidably positioned in the two side guiding tracks. The brush is connected to the brush base and has elastic recovery to press against the variable resistor circuit base. The bar is connected to the brush base and extended outward from the position restriction hole of the shell.

Slide-type variable resistor

A variable resistor includes a shell, an inverted circuit module, and a manipulating device. The shell has a shell position restriction hole and an allocation space linked to the shell position restriction hole. The inverted circuit module is fixed in the allocation space and includes a circuit board and a plurality of connecting ends located on the circuit board. The circuit board has a circuit board position restriction hole and a resistance circuit on a rear surface thereof. The manipulating device is slidably assembled in the allocation space and includes a brush base, at least a metal brush, and a bar. The metal brush is fixed on a front surface of the brush base and elastically presses against the resistance circuit. The bar is connected to the brush base and extended outward through the circuit board position restriction hole and the shell position restriction hole.

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Taoyuan, Taiwan

Wei-Liang Liu