National Applied Research Laboratories

Chen-Chia Chen

Chun-Ming Huang

Chien-Ming Wu

Gang-Neng Sung

Chi-sheng Lin

Wei-Chang Tsai

Yung-Bin Lin

Chih-Hsing Lin

The present invention provides an electroencephalogram measurement structure formed by an ear-hanging structure and a second circuit board. The ear-hanging structure includes a body. An ear-hanging member is disposed at the extension of the body. The body can be worn on the ear via the ear-hanging member. In addition, a first reference electrode and a second reference electrode are disposed on the body and coupled to a first circuit board. The first circuit board is coupled to an electrical jack; the second circuit board is coupled to the electrical jack via an electrical plug. Thereby, the electroencephalogram measurement can be performed simply by wearing the ear-hanging member on the ear of the person under test. Hence, the problems of complicated wiring and inconvenience in wearing can be solved concurrently.

Electroencephalogram measurement structure

A liquid level monitoring system includes: a hardware unit with a tube to extend through a surface of a liquid; a processor unit generating control signals that respectively correspond to target frequencies; a sound generator unit generating, respectively based on the control signals, incident sound waves that transmit in the tube and that are reflected by the surface of the liquid to respectively form reflected sound waves; and a sensor unit for sensing the reflected sound waves to respectively generate feedback signals. The processor unit determines a maximum amplitude frequency based on the feedback signals, and calculates a level of the surface of the liquid based on the maximum amplitude frequency and a length of the tube.

Liquid level monitoring system and method

The device includes a master module and a slave module. The master module includes a control unit for controlling overall operation of the master module, a power unit electrically for storing electricity to supply the master module, an electricity transmission unit for receiving electricity from the power unit and wirelessly transmitting the electricity; and a communication unit for communicating of the master module. The slave module is electrically connected to the master module and includes a control subunit for controlling overall operation of the slave module, a communication subunit for wirelessly communicating with the communication unit, an electricity reception unit for wirelessly receiving the electricity from the power unit of the master module, a storage unit for storing electricity from the electricity reception unit and supplying power to each unit of the slave module, and an electricity transmission subunit for wirelessly outward transmitting electricity of the storage unit.

Modularized electric combination device

The showerhead includes a main body; a power generator disposed in the main body; a power monitor module, disposed in the main body, electrically connected to the power generator, and configured for monitoring quality of power from the power generator and switching on/off power supply of the power generator; and a control module, disposed in the main body, electrically connected to the power monitor module, and configured for controlling functions.

Self-powered showerhead

The system includes a control module, an environment detection unit and an electricity generation module. The control module includes a control unit for data processing and operating and an alarm unit, electrically connected to the control unit for receiving a command of the control unit. The environment detection unit is electrically connected to the control unit of the control module for detecting a physical quantity of environmental matter to generate a signal to send back to the control unit. The electricity generation module is electrically connected to the control module and has an electricity generator for generating electricity by environmental energy to supply the control module and the environment detection unit.

Environment detection alarm system

A liquid level measuring device comprises an inner-tube unit having an inner tube and at least one inner-tube coil surrounding the inner tube; an outer-tube unit having a plurality of outer tubes, each outer tube having a plurality of outer-tube coils disposed thereon, the outer tubes being stacked, the inner tube being arranged inside the outer tubes and being risen and fallen as a level of a liquid in the outer tubes varies; and a control unit electrically connecting to the respective outer-tube coils, the control unit transmitting a set of position coded signals to the outer-tube coils disposed on an individual outer tube, the control unit determining the liquid level according to an induced signal generated by the inner-tube coil. Said device has many advantages including low cost and modular design, and such a device is easily to be deployed.

Liquid level measuring device

A method and apparatus for sensing boundaries between materials are provided. The method for sensing boundaries between materials comprises the steps of: fixing sensing modules in place; transmitting and receiving radio frequency signals; and analyzing radio frequency signals. The method enables real-time detection of positions of the boundaries between materials and handling and monitoring of changes in the boundary positions. The apparatus for sensing boundaries between materials comprises at least two sensing modules, or a radio frequency transmitting unit and a plurality of radio frequency signals receiving unit, or a plurality of radio frequency transmitting unit and a radio frequency signals receiving unit. The radio frequency signals are transmitted, received and analyzed by the radio frequency transmitting unit and the radio frequency signals receiving unit to determine the boundary positions and changes therein.

Method and apparatus for sensing boundary between materials

The present invention provides a liquid level measuring device which comprises: a tube for accommodating a liquid; a floating member disposed inside the tube, the floating member rising and falling as the level of the liquid varies; at least one magnetic detecting element fastened to the floating member, the magnetic detecting element floating along with the floating member; and a plurality of magnetic sources disposed outside the tube, which are distributed separately along the changing direction of the liquid level so as to establish a specific magnetic field strength distribution, wherein the magnetic detecting element detects the magnetic field strength at the height at which the magnetic detecting element is located and outputs a measuring signal correspondingly, and the liquid level is determined according to the measuring signal. The present invention has many advantages including low cost, efficiency, and it can easily be deployed in considerable amounts.

A microparticle detecting apparatus is disclosed and includes at least one detection unit, each of which includes: a first sieve having at least a first mesh, a separator stacked on one side of the first sieve and having a separator hole, and a second sieve stacked on one side of the separator and having several second meshes. The diameter of the second mesh is smaller than that of the first mesh, and the first and second meshes are misaligned with each other in a vertical direction of the first and second sieves. The detection unit further includes at least a sensor aligned with the first or second mesh for detecting microparticles trapping into the first mesh or passing through the second mesh. Therefore, the microparticle detecting apparatus is suitably used for detecting or counting any microparticles with different size, to effectively shorten the detection processes of sample fluids.

Microparticle detecting apparatus

A miniature sieve apparatus is described and includes a first sieve, a separator and a second sieve from top to bottom. The first and second sieves are formed with at least one first mesh and a plurality of second meshes, respectively. The first and second meshes are misaligned with each other in a vertical direction of the first and second sieves. The miniature sieve apparatus is provided to separate or screen microparticles with different sizes, such as target cells, bio-medical particles, organic or inorganic microparticles. Additionally, the invention also provides a manufacturing method of the miniature sieve apparatus, and the same material is applied to manufacture the sieves and the separators. Thus, the problem caused by the residual thermal stress due to different material can be solved. Therefore, the cost of the miniature sieve apparatus can be lowered as the yield rate thereof is improved.

Growing community of inventors

Hsinchu, Taiwan

Chen-Chia Chen