Tatung Company

Cheng-Hsing Kuo

Chao-Fa Lee

Shih-Jung Chang

Shu-Ting Liao

Tsong-Rong Yan

Ya-Leei Chien

An ultrasonic gas flow measurement device includes a dumbbell-shaped tube, a first ultrasonic transceiver, a second ultrasonic transceiver, a first cover part, a second cover part and a control unit. The dumbbell-shaped tube includes a central tube part, a first cone part, a first tube part, a second cone part and a second tube part, wherein the first tube part has a flow inlet, the second tube part has a flow outlet, the central tube part connects to the first tube part through the first cone part, and connects to the second tube part through the second cone part. The first ultrasonic transceiver installed inside the first tube part is used for transmitting or receiving ultrasonic signals. The second ultrasonic transceiver installed inside the second tube part is used for transmitting or receiving ultrasonic signals. The control unit is used to control the first and second transceivers.

Ultrasonic gas flow measurement device including a dumbbell-shaped flow tube to increase gas flow speed

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.

Ultrasonic phase-shift detection device

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.

Digital logic module of oximeter sensor probe

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.

Multi-channel bio-med electric signals capturing device based on a sound signal generation

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.

Dual mode measurement system with quartz crystal microbalance

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.

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Taipei, Taiwan

Cheng-Hsing Kuo