Abstract: A bioelectrical impedance measurement apparatus is provided. A power signal and a frequency regulation signal for driving a measurement unit of the bioelectrical impedance measurement apparatus to perform bioelectrical impedance measurement are provided through a first sound channel output terminal and a second sound channel output terminal of a host device, and a bioelectrical impedance measurement result is received by a microphone input terminal of the host device.

Abstract: A bioelectrical impedance measurement method is provided. A power signal and a frequency regulation signal for driving a measuring unit to perform bioelectrical impedance measurement are provided from a first sound channel output terminal and a second sound channel output terminal according to a measuring mode of a host device, and a signal measured and mixed is received by a microphone input terminal of the host device, and a bioelectrical impedance measurement result is analyzed and displayed by the host device.

Abstract: A bioelectrical impedance measurement apparatus is provided. A power signal and a frequency regulation signal for driving a measurement unit of the bioelectrical impedance measurement apparatus to perform bioelectrical impedance measurement are provided through a first sound channel output terminal and a second sound channel output terminal of a host device, and a bioelectrical impedance measurement result is received by a microphone input terminal of the host device.

Abstract: An ultrasonic phase-shift detection device includes a clock generator, a divider, a first counter, a comparator, a phase detector and a second counter. The divider is provided for dividing the clock signal to generate ultrasonic signals. The comparator is provided for comparing the counting value of the first counter and a predetermined number. The phase detector is provided for comparing the phase shift between different ultrasonic signals. The second counter is provided for counting to generate the digital result signal.

Abstract: An adjustable ultrasonic gas flow measurement device includes a gas pipe, a transmitter, a receiver and a micro-processing module. The gas pipe is filled with a gas under test. The transmitter and the receiver are respectively installed in two ends of the gas pipe for transmitting and receiving ultrasonic signals inside the gas pipe. The micro-processing module is electrically connected to the transmitter and the receiver for generating and sending a first ultrasonic signal to the transmitter for transmitting, and comparing the phase shift of a second ultrasonic signal and a third ultrasonic signal to output a phase comparison result, wherein the transmitted first ultrasonic signal passing through the gas pipe was received by the receiver as the second ultrasonic signal, and the third ultrasonic signal is generated by shifting the first ultrasonic signal with a predetermined phase difference.

Abstract: An adjustable ultrasonic gas flow measurement device includes a gas pipe, a transmitter, a receiver and a micro-processing module. The gas pipe is filled with a gas under test. The transmitter and the receiver are respectively installed in two ends of the gas pipe for transmitting and receiving ultrasonic signals inside the gas pipe. The micro-processing module is electrically connected to the transmitter and the receiver for generating and sending a first ultrasonic signal to the transmitter for transmitting, and comparing the phase shift of a second ultrasonic signal and a third ultrasonic signal to output a phase comparison result, wherein the transmitted first ultrasonic signal passing through the gas pipe was received by the receiver as the second ultrasonic signal, and the third ultrasonic signal is generated by shifting the first ultrasonic signal with a predetermined phase difference.

Abstract: A cell measurement system measures changes of frequency and transepithelial electrical resistance of a tested cell sample. The cell measurement system includes a quartz crystal sensing module, an oscillation module, a periodic wave-generation module, a low-pass filtration module, and a control module. The cell measurement system of the present invention can simultaneously measure changes of frequency and transepithelial electrical resistance of a tested cell sample during cell growth so that the growth level and healthy condition of the cells and degree of a monolayer completion of the cells can be determined.

Abstract: An ultrasonic phase-shift detection device includes a clock generator, a divider, a first counter, a comparator, a phase detector and a second counter. The divider is provided for dividing the clock signal to generate ultrasonic signals. The comparator is provided for comparing the counting value of the first counter and a predetermined number. The phase detector is provided for comparing the phase shift between different ultrasonic signals. The second counter is provided for counting to generate the digital result signal.

Abstract: A digital logic module of oximeter sensor probe includes a detection probe, an operation circuit, and an integrated circuit. This digital logic module of oximeter sensor probe is provided with the light source driving function and the light source capturing function for reducing loading of the microprocessor, so that a cheaper microprocessor can be used in the oximeter sensor for reducing the development cost of the oximeter.

Abstract: A multi-parameter physical audio signal decoding system includes an audio capturing device, a signal pre-processor, a signal decoder, a data modulator and a display device. The audio capturing device receives audio signals, and transforms them into digital signals in real time. The digital signals are transmitted to the signal pre-processor. The signal decoder decodes the digital signals. The data modulator removes signal noises. The display device displays the modulated digital signals. In a non-real-time decoding process, an audio file recorded with physical signals is transmitted to the pre-processor to proceed the decoding process.

Abstract: A multi-channel bio-med electric signals capturing device includes: a detection channel unit, a control unit, a voice signal generator and a computer device. The detection channel unit is provided to detect bioelectric signals produced from human body and amplify the same. The control unit is provided to capture the amplified bio-med electric signals based on a frequency conforming to a computer acceptable audient signal. The voice signal generator transmits the captured amplified bio-med electric signals to a microphone of the computer device, whereby a recording program built in the computer device records the input audient signal as a voice file. Accordingly, the user is able to monitor the bio-med electric signals by easily and simply using a computer device.

Abstract: A portable multi-parameter physiological monitoring and recording device includes multiple sensors, multiple detection channel units, a multiplexer, a clock generator, a controller, an analog switch, a recording unit and a storage unit. The sensors are attached on the body of a person for sensing physiological parameter signals. The detection channel units amplify the received physiological parameter signals. The multiplexer captures the amplified physiological parameter signals. The clock generator generates clock signals in the audio-frequency range. The controller controls the multiplexer to capture the amplified physiological parameter signals based on the clock signals generated by the clock generator. The analog switch outputs the amplified physiological parameter signals as an audio signal. The recording unit records the audio signals as an audio file. The storage unit stores the audio file.

Abstract: A system for measuring ECG and breath signals by using two polar electrodes includes a first polar electrode, a second polar electrode and a breath and ECG signals measuring device. The breath and ECG signals measuring device includes a level regulator, a square wave generator, a breath signal process module and an ECG signal process module. The first and second polar electrodes are attached on the body of a person under test to import square wave signal and receive the first and second measuring signals. The level regulator adjusts the voltage reference of the first and second measuring signals. The breath signal process module and the ECG signal process module process and generate a breath signal and an ECG signal respectively.

Abstract: A dual mode measurement system with quartz crystal microbalance (QCM) is provided, which includes a quartz sensing component, a first measurement circuit, a second measurement circuit and a switch unit. When the first measurement circuit is selected through the switch unit, the first measurement circuit and the quartz sensing component form an oscillation circuit and output a resonance signal. When the second measurement circuit is selected through the switch unit, the second measurement circuit outputs a frequency scanning signal to scan the quartz sensing component, so as to output an impedance sensing signal.

Abstract: The present invention relates to a cell culture device which includes: a cell culture container comprising a container body and a neck connecting to the container body wherein the container contains a top wall, a bottom wall having a first opening, and at least one side wall to define a cell culture zone, and an end of the neck has a second opening for cells or culture media being injected into the cell culture zone; a biosensor chip having a detective surface which faces the top wall of the cell culture container; and a fastening component for the biosensor chip being fastened in the first opening of the bottom wall. The cell culture of the present invention can be used for real-time detection of the cell growth and further for drug screening.

Abstract: A multi-channel bio-med electric signals capturing device includes: a detection channel unit, a control unit, a voice signal generator and a computer device. The detection channel unit is provided to detect bioelectric signals produced from human body and amplify the same. The control unit is provided to capture the amplified bio-med electric signals based on a frequency conforming to a computer acceptable audient signal. The voice signal generator transmits the captured amplified bio-med electric signals to a microphone of the computer device, whereby a recording program built in the computer device records the input audient signal as a voice file. Accordingly, the user is able to monitor the bio-med electric signals by easily and simply using a computer device.

Abstract: A system for monitoring heart and lung functions comprises an audio signal sensing unit, an audio signal processing unit, an electrocardiogram signal sensing unit, an electrocardiogram signal processing unit, and a microprocessor unit. The audio signal sensing unit senses audio signals, including a heart sound and a lung sound. The audio signal processing unit is connected to the audio signal sensing unit and processes the audio signals to obtain the heart sound and the lung sound. The electrocardiogram signal sensing unit senses an electrocardiogram signal. The electrocardiogram signal processing unit is connected to the electrocardiogram signal sensing unit and processes the electrocardiogram signal. The microprocessor unit is connected to the audio signal processing unit, the electrocardiogram signal processing unit and a computer host, and processes the heart sound, the lung sound and the electrocardiogram signal to be data that can be identified by the computer host.

Abstract: A dual mode measurement system with quartz crystal microbalance (QCM) is provided, which includes a quartz sensing component, a first measurement circuit, a second measurement circuit and a switch unit. When the first measurement circuit is selected through the switch unit, the first measurement circuit and the quartz sensing component form an oscillation circuit and output a resonance signal. When the second measurement circuit is selected through the switch unit, the second measurement circuit outputs a frequency scanning signal to scan the quartz sensing component, so as to output an impedance sensing signal.

Abstract: This present invention relates to a system for measuring resonant frequency and delay time of the quartz crystal microbalance. The system includes a transistor oscillating circuit, a switch circuit, a comparator circuit, and a control circuit. The transistor oscillating circuit comprises a quartz oscillator for generating an original oscillating signal. The switch circuit is coupled to the transistor oscillating circuit for outputting a start signal to generate the original oscillating signal. The comparator circuit is coupled to the transistor oscillating circuit for transforming the original oscillating signal to a square wave oscillating signal. The control circuit is coupled to the comparator circuit for receiving the square oscillating signal to estimate the resonant frequency and the delay time of the quartz crystal microbalance.

Abstract: This present invention relates to a system for measuring resonant frequency and delay time of the quartz crystal microbalance. The system includes a transistor oscillating circuit, a switch circuit, a comparator circuit, and a control circuit. The transistor oscillating circuit comprises a quartz oscillator for generating an original oscillating signal. The switch circuit is coupled to the transistor oscillating circuit for outputting a start signal to generate the original oscillating signal. The comparator circuit is coupled to the transistor oscillating circuit for transforming the original oscillating signal to a square wave oscillating signal. The control circuit is coupled to the comparator circuit for receiving the square oscillating signal to estimate the resonant frequency and the delay time of the quartz crystal microbalance.