Finetek Co., Ltd.

Gudeng Precision Industrial Co., Ltd.

Yi-Liang Hou

Chao-Kai Cheng

I-Chu Lin

Chun-Hung Chen

Liang-Chi Chang

Ching-Cheng Kuo

Chun-Ju Chen

Chi-Fan Liao

Jen-Shun Wang

Chun-Han Huang

Ming-Hui Chang

Chi-Chih Chou

Yin-Lun Huang

Wei-Yu Chen

Chen-Wei Ku

Chih-Wen Wang

Ming-Long Chiu

Chien-Lung Huang

Jain-Ping Sheng

Kuo-Chun Hung

Yao-Chen Yu

Sheng-Shou Chen

Jia-Yi Chen

Cheng-Huang Wu

Shih-Wei Lu

Yun-Lung Lo

Shyh-Jong Chung

An electromagnetic flowmeter includes a measurement tube having a mounting tube liner and a control module installed in an outer side of the measurement tube. A magnetic field module is installed in an outer side being orthogonal to a shaft of the measurement tube without contacting the working fluid. An electrode structure is disposed on an outer surface of the measurement tube and partially extended in the mounting tube liner to contact the working fluid. The actuator element is electrically connected with the control module and connected with the electrode structure. The actuator element is driven by an external force to drive the electrode structure toward the mounting tube liner inside and being orthogonal to the mounting tube liner for compensating the wear of the electrode structure so as to obtain a correct measurement result and increase the service life.

Electromagnetic flowmeter with adjustable electrode structures

A method of processing FMCW radar signal retrieves a configuring parameter set () corresponding to a working environment or a detected material, receives a reflection time-domain signal, executes a time-domain-to-frequency-domain converting process to the reflection time-domain signal for obtaining a reflection frequency-domain signal, executes the corresponded process on the reflection frequency-domain signal according to the configuring parameter set (), and analyzes the processed reflection frequency-domain signal and generates a detecting result. The present disclosed example can effectively reduce the time of the development and the cost of manufacture via executing the corresponded process according to the configuring parameter set () corresponding to the working environment or the detected material.

Method of processing FMCW radar signal

A liquid level sensing apparatus () for long-distance automatically enhancing a signal-to-noise ratio is applied to a measured target (). The liquid level sensing apparatus () includes a sensing module (), a long-distance command receiving module () and at least a brake module (). The sensing module () transmits a sensing signal () to the measured target (). The sensing signal () touches the measured target () to reflect back a reflected signal (). The sensing module () receives the reflected signal () to measure the signal-to-noise ratio and to measure a height of the measured target (). The long-distance command receiving module () is electrically connected to the sensing module (). The long-distance command receiving module () receives a long-distance command signal (). The brake module () is mechanically connected to the sensing module ().

Liquid level sensing apparatus for long-distance automatically enhancing signal-to-noise ratio

A method for measuring a permittivity (&#x3b5;) of a material () includes following steps. A sensing rod () of a material level sensor () inserts into a tank (). The material level sensor () proceeds with a material level measurement of the material () to obtain a first feature value. The material level sensor () is vertically moved with a vertical distance (Hair). The material level sensor () proceeds with the material level measurement to obtain a second feature value, and subtracts the first feature value by the second feature value to obtain a feature value variation, and calculates the feature value variation to obtain the permittivity (&#x3b5;) of the material ().

Method for measuring permittivity of material

A sensing apparatus includes a probe and a sensing module. The sensing module includes a material sensing circuit, an operation unit and a signal output circuit. The sensing module generates a frequency sweep signal and sends the frequency sweep signal to the probe to sense a status of a material. The frequency sweep signal is a plurality of signals having different frequencies from each other in a predetermined frequency range. When the frequency sweep signal touches the material, an equivalent capacitance of the material is utilized to generate a reflected signal. The material sensing circuit receives the reflected signal and sends the reflected signal to the operation unit. The operation unit operates the reflected signal to generate a waveform signal to determine the status of the material. The operation unit utilizes an impedance spectrum to determine the status of the material.

Sensing apparatus and material sensing method

A radar liquid level measuring apparatus () includes a first oscillation module (), a second oscillation module (), a frequency comparator () and a control module (). The first oscillation module () has a first oscillation frequency. The first oscillation module () generates a first pulse signal (). The second oscillation module () has a second oscillation frequency. The second oscillation module () generates a second pulse signal (). The frequency comparator () converts the first pulse signal () and the second pulse signal () into an adjusted signal (). The control module () compares the adjusted signal () with an expectation value () to obtain a comparative result signal. According to the comparative result signal, the control module () adjusts the second oscillation frequency, so that the second oscillation frequency and the first oscillation frequency have a constant frequency difference.

Radar liquid level measuring apparatus and radar liquid level measuring method

A multifunctional signal isolation converter () is arranged in a safe area (), and is applied to an electronic apparatus () arranged in a dangerous area (). The multifunctional signal isolation converter () includes a microprocessor () and a power supply unit (). The microprocessor () determines whether internal functions of the multifunctional signal isolation converter () are normal or not to obtain a first judgment value. The electronic apparatus () sends an input signal () to the microprocessor (). The microprocessor () determines whether functions of the electronic apparatus () are normal or not to obtain a second judgment value according to the input signal (). The microprocessor () controls whether the power supply unit () supplies a driving power () to the electronic apparatus () or not according to the first judgment value and the second judgment value.

Multifunctional signal isolation converter

A material level indicator includes a probe, first and second signal compensating units, arranged at first and second ends of the probe respectively, and a controlling module arranged at the first end and includes a signal processor, a signal emitter, and a signal receiver. The second end is opposite to the first end. The signal processor is connected to the signal emitter and the signal receiver. The signal emitter emits an electromagnetic signal from the first end to the second end of the probe. The first and second signal compensating units reflect the electromagnetic signal, and the signal processor generates first and second time interval differences according to the reflected electromagnetic signal received by the signal receiver. The signal processor calibrates an environmental coefficient and indicates a dielectric coefficient of the material according to the first and second time interval differences respectively.

Material level indicator

An electromagnetic flowmeter with voltage-amplitude conductivity-sensing function for a liquid in a tube includes a first microprocessor, a transducer, flow-sensing device, an exciting-current generating device, a voltage-amplitude conductivity-sensing device, and a switch. The transducer includes coils and sensing electrodes. The switch is electrically connected to the first microprocessor and the sensing electrode. The switch is selectively connected to the flow-sensing device or the voltage-amplitude conductivity-sensing device according to the signals sent from the microprocessor. The microprocessor drives the exciting-current generating device to generate an exciting current when the switch is connected to the flow-sensing device. The microprocessor stops the exciting-current generating device from generating exciting current and computing conductivity of liquid when the switch is electrically connected to the voltage-amplitude conductivity-sensing device.

Electromagnetic flowmeter with voltage-amplitude conductivity-sensing function for a liquid in a tube

A calibration method for a capacitance level sensing apparatus () is applied for a tank measurement. A measurement signal generating circuit () generates a measurement signal () to proceed with the tank measurement. According to a measurement result measured through the measurement signal (), a sensing circuit () transmits a sensing signal () to a control unit (). According to the sensing signal (), the control unit () determines whether the sensing signal () is in an effective range or not. If the sensing signal () is in the effective range, the control unit () sets a total capacitance in accordance with the sensing signal () as a measurement base value. If the sensing signal () is not in the effective range, the control unit () controls the measurement signal generating circuit () to adjust a measurement frequency of the measurement signal ().

Calibration method for capacitance level sensing apparatus and anti-interference method for plural capacitance level sensing apparatuses

An explosion-proof dust of electromechanical level measuring device includes: a explosion proof enclosure (), formed with a safe chamber area () and a hazardous chamber area () and a power shaft sleeve () is provided for communicating the above two; a power unit () disposed inside the safe chamber area (); a control module () disposed inside the safe chamber area () and electrically connected to the power unit (); a capstan () disposed in the hazardous chamber area (); a power shaft () sleeved in the power shaft sleeve () and two ends thereof are respectively connected to the power unit () and the capstan (); and a pair of bearings () disposed in the power shaft () and spaced with an interval thereby forming a fireproof path ().

Explosion-proof dust of electromechanical level measuring device

A conveying apparatus () includes a dynamic axis (), an idler axis (), a conveying belt (), a work-energy conversion wireless monitoring apparatus () and at least an on-site wireless controller (). The on-site wireless controller () is used to sense an operation status of the conveying apparatus () to generate a sense data () and to wirelessly send the sense data () to the work-energy conversion wireless monitoring apparatus (). The work-energy conversion wireless monitoring apparatus () includes an electric generator (), a battery (), a rotating speed measuring sensor (), a microprocessor () and a transmission antenna (). The electric generator () is coupled to and connected to the idler axis (). The electric generator () is driven with a rotating motion of the idler axis () to generate an electricity power. The battery () is electrically connected to the electric generator ().

Conveying apparatus

Display screen with graphical user interface

An electromagnetic flowmeter with variable-frequency conductivity-sensing function for a liquid in a tube includes a first microprocessor, a transducer, flow-sensing device, an exciting-current generating device, a variable-frequency conductivity measuring device, and a switch. The transducer includes coils and sensing electrodes. The switch is electrically connected to the first microprocessor and the sensing electrodes. The switch is selectively connected to the flow-sensing device or the variable-frequency conductivity measuring device according to the signals sent from the first microprocessor. The microprocessor makes the exciting-current generating device to generate an exciting current when the switch is connected to the flow-sensing device. The first microprocessor makes the exciting-current generating device stop to generate exciting current and computes conductivity of liquid when the switch is electrically connected to the variable-frequency conductivity-sensing device.

Growing community of inventors

Taipei, Taiwan

Yi-Liang Hou