Abstract: A terminal device has measurement sensors for measuring physical quantities of measurement targets. A storage unit stores information determining a mode for activating the measurement sensors. Based on the information stored in the storage unit, a control unit switches all or part of the measurement sensors from a non-activated state to an activated state when the measurement sensors are to be activated. An activation unit includes an activation sensor driven on the basis of environmental changes. The activation unit is configured to activate the control unit on the basis of detection results from the activation sensor when a physical quantity correlated with the physical quantity of the measurement target satisfies a given activation condition.

Abstract: A pressure sensor includes a sensor body which has a first surface and a cavity with an opening in the first surface, a cantilever which has a base end portion supported on the first surface and a distal end portion provided to form a gap from a peripheral edge of the opening inside the opening, is flexurally deformed according to a pressure difference between an inside and an outside of the cavity, and is formed of a semiconductor material, and a displacement measurement unit which measures a displacement of the cantilever vibrating according to the pressure difference at a frequency larger than a lower limit frequency fLOW (Hz) defined by Expression (1), where a width (?m) of the gap is represented by G, a volume (ml) of the cavity is represented by V, and a proportional constant is represented by k.

Abstract: A terminal device has at least one measurement sensor for measuring a physical quantity of a measurement target. A control unit switches the measurement sensor, when activated, from a non-activated state to an activated state. An activation unit, which is driven at lower power consumption than the measurement sensor, activates the control unit when a physical quantity having a correlation with the physical quantity of the measurement target has satisfied a given activation condition.

Abstract: A pressure sensor has a detecting unit configured to detect a difference between outputs from deformation detecting units of first and second pressure variation sensors. The first and second pressure variation sensors are connected to one another so that the gap of the first pressure variation sensor communicates the exterior of the cavities of the first and second pressure variation sensors and the interior of the cavity of the first pressure variation sensor, and so that the gap of the second pressure variation sensor communicates the interior of the cavity of the first pressure variation sensor and the interior of the cavity of the second pressure variation sensor.

Abstract: A pressure sensor includes a sensor body which has a first surface and a cavity with an opening in the first surface, a cantilever which has a base end portion supported on the first surface and a distal end portion provided to form a gap from a peripheral edge of the opening inside the opening, is flexurally deformed according to a pressure difference between an inside and an outside of the cavity, and is formed of a semiconductor material, and a displacement measurement unit which measures a displacement of the cantilever vibrating according to the pressure difference at a frequency larger than a lower limit frequency fLOW (Hz) defined by Expression (1), where a width (?m) of the gap is represented by G, a volume (ml) of the cavity is represented by V, and a proportional constant is represented by k.

Abstract: A blood rheology measurement device measures a blood rheology of blood flowing through an artery inside of a living body from outside of the living body. The blood rheology measurement device has a sensor that detects a flow rate of blood flowing through the artery and a pulsatile displacement that varies with an elapse of time. The pulsatile displacement corresponds to a displacement of the artery in a diameter direction thereof due to expansion and contraction of the artery resulting from a pulsatile motion of the heart. A calculating section calculates the blood rheology of blood flowing through the artery on the basis of the blood flow rate and the pulsatile displacement detected by the sensor.

Abstract: A reactor comprises a main body having a flow path substrate and a crystal substrate chemically bonded to the flow path substrate to form a flow path for running a sample to be measured and a reactor tank connected to the flow path. An adsorption film is disposed in the reactor tank for adsorbing a specific substance contained in the sample to be measured. A measuring device measures a physical quantity of the specific substance contained in the sample and adsorbed by the adsorption film.

Abstract: To provide a terminal device realizing high-performance sensing and lower power consumption. A terminal device according to the present invention includes a sensor for measurement measuring a physical quantity of a measurement target, a control unit switching the sensor for measurement from a non-activated state to an activated state when activated and an activation unit driven in lower power consumption than the sensor for measurement and activating the control unit when a physical quantity having correlation with the physical quantity of the measurement target is satisfied as a given activation condition, thereby realizing high-performance sensing and lower power consumption.

Abstract: To realize high-performance sensing and lower power consumption as well as to improve the entire operation of measurement. A terminal device according to the present invention includes a plurality of sensors for measurement measuring physical quantities of measurement targets, a storage unit storing information for determining activation manners of the plural sensors for measurement, a control unit switching all or part of the plural sensors for measurement from a non-activated state to an activated state based on the information when activated and an activation unit including a sensor for activation to be driven based on a change of environment and activating the control unit when a physical quantity having correlation with the physical quantity of the measurement target is satisfied as a given activation condition based on a detection result by the sensor for activation.

Abstract: A pressure sensor includes a detecting circuit configured to detect the difference between outputs from a first pressure variation sensor and a second pressure variation sensor. The first pressure variation sensor and the second pressure variation sensor have the same distance of a gap, and have frequency characteristics different from each other, that is, cutoff frequencies different from each other by setting the value of a capacity of the cavity of the first pressure variation sensor to be larger than the value of a capacity of the cavity of the second pressure variation sensor.

Abstract: A pressure sensor includes a detecting circuit configured to detect the difference between outputs from a first pressure variation sensor and a second pressure variation sensor. The first pressure variation sensor and the second pressure variation sensor have a lower limit frequency which provides sensitivity equal to or higher than a predetermined value as the effectively same frequency characteristics in accordance at least with a capacity of a cavity or a distance of a gap. The gap of the first pressure variation sensor communicates the exterior of the pressure sensor and the interior of the cavity of the first pressure variation sensor, and the gap of the second pressure variation sensor communicates the interior of the cavity of the first pressure variation sensor and the interior of the cavity of the second pressure variation sensor.

Abstract: A blood rheology measuring apparatus has a measuring portion for measuring a flow velocity of the blood flowing in a blood vessel of a person in a mode of a Doppler shift signal by transmitting and receiving a wave to and from a surface of the person's skin. An information processing portion calculates an intensity at each of frequency components of the Doppler shift signal, extracts a maximum frequency in a signal at an intensity level equal to or larger than a threshold in the histogram or a maximum frequency when an integrated value from a low frequency component reaches a predetermined rate of a total thereof in the histogram, and provides a temporal change waveform of the extracted frequency. The blood rheology is analyzed by an area value of a portion at and above a line connecting a minimum value of one pulse waveform and a minimum value of a successive pulse waveform of the frequency waveform.

Abstract: To provide a small-sized liquid seal sensor that can enhance degrees of freedom in detection directions. A liquid seal sensor having a liquid seal part that seals a liquid therein, and a detecting part that detects changes in the liquid sealed in the liquid seal part has a configuration in which the detecting part detects changes in the liquid sealed in the liquid seal part, and thus when an acceleration is applied, the detecting part detects changes in the liquid sealed in the liquid seal part, whereby the sensitivity to accelerations can be enhanced in any directions.

Abstract: A blood rheology measuring apparatus has a measuring portion for measuring a flow velocity of the blood flowing in a blood vessel of a person in a mode of a Doppler shift signal by transmitting and receiving a wave to and from a surface of the person's skin. An information processing portion calculates an intensity at each of frequency components of the Doppler shift signal, extracts a maximum frequency in a signal at an intensity level equal to or larger than a threshold in the histogram or a maximum frequency when an integrated value from a low frequency component reaches a predetermined rate of a total thereof in the histogram, and provides a temporal change waveform of the extracted frequency. The blood rheology is analyzed based on the maximum frequency in the frequency waveform.

Abstract: To provide an oscillating current converter fabricated by utilizing the MEMS technology making it possible to further decrease the size yet improving the conversion efficiency. An oscillating current converter 1 fabricated by using the MEMS technology and comprising a cantilever 4 having an opening 5 formed on the distal end side thereof and is cantilevered on the proximal end side thereof, a coil 6 wound around the opening 5 of the cantilever 4, and a magnet 8 arranged so as to enter into the inside of the opening 5 of the cantilever 4, wherein the cantilever 4 oscillates to generate an induced electromotive force in the coil 6.

Abstract: A microchip has a substrate on which there are formed a reaction bath section, a first flow channel to which are connected a supply channel that supplies a buffer solution and the reaction bath section, a second flow channel to which are connected a supply channel that supplies a sample solution containing a first substance and a channel that discharges the sample and buffer solutions to an exterior of the substrate, and a connecting channel connecting the first flow channel to the second flow channel. The reaction bath section receives the first and second substances so that the first and second substances react in the reaction bath section.

Abstract: A blood viscosity measurement device has a flow rate calculating section that calculates a flow rate of blood flowing through a blood vessel of a living body. An inner diameter calculating section calculates an inner diameter of the blood vessel. A blood pressure data acquiring device acquires blood pressure data corresponding to a blood pressure of the blood vessel. A viscosity calculating section calculates a viscosity of the blood flowing through the blood vessel using each of the calculated flow rate, the calculated inner diameter, and the acquired blood pressure data.

Abstract: A blood rheology measurement device and a blood rheology measurement method which detect a fingerprint or a vein to thereby measure a positional relation between an artery in a living body and a sensor on the same conditions for each subject during non-invasive measurement and which correctly evaluate a change of blood rheology with elapse of time. A vein pattern or a fingerprint pattern peculiar to a subject is detected, recognized, and stored, a position of a sensor is adjusted so that the detected vein pattern or fingerprint pattern agrees with the stored vein pattern or fingerprint pattern every measurement, and a blood rheology index value indicating blood fluidity (fluidity/viscosity) is measured.

Abstract: There is provided a pulse detecting device which resists fluctuations in the quality by locating an ultrasound transmitting piezoelectric element and an ultrasound receiving piezoelectric element with high precision. In the pulse detecting device, a detection sensitivity of the pulse is improved. A transmitting piezoelectric element and a receiving piezoelectric element are fixed onto a substrate by electrodes. The transmitting piezoelectric element is excited in response to an inputted drive voltage signal to generate an ultrasound and transmits the generated ultrasound to a living body. The receiving piezoelectric element receives an echo produced by reflecting the ultrasound transmitted into the living body by a blood flow of the living body and converts it into a voltage signal. A processing arithmetic unit compares the frequency of the ultrasound generated by the transmitting piezoelectric element with that of the echo received in the receiving piezoelectric element to thereby detect a pulse.

Abstract: [Problem] To provide an oscillating current converter fabricated by utilizing the MEMS technology making it possible to further decrease the size yet improving the conversion efficiency. [Means for Solution] An oscillating current converter 1 fabricated by using the MEMS technology and comprising a cantilever 4 having an opening 5 formed on the distal end side thereof and is cantilevered on the proximal end side thereof, a coil 6 wound around the opening 5 of the cantilever 4, and a magnet 8 arranged so as to enter into the inside of the opening 5 of the cantilever 4, wherein the cantilever 4 oscillates to generate an induced electromotive force in the coil 6.