Abstract:
A pulse wave detecting device includes a sensor section and a control unit. The sensor section is rotatable about a first axis and is rotatable about a second axis. The control unit determines a rotation angle about the first axis based on DC components of pressure detecting elements included in element rows. Then, in a state where the sensor section is controlled to the optimal pitch angle, the sensor section is pressed against the body surface, and a pulse wave is detected based on pressure signals detected by pressure detecting elements in this state, and vital information is calculated based on the detected pulse wave.
Abstract:
A pulse wave detecting device includes a sensor section and a control unit. The sensor section is rotatable about a first axis and is rotatable about a second axis. The control unit determines a rotation angle about the first axis, and determines a rotation angle about the second axis in a state where a pitch angle of the sensor section is controlled to the optimal pitch angle. Then, in a state where the sensor section is controlled to the optimal roll angle and the optimal pitch angle, the sensor section is pressed against the body surface, and a pulse wave is detected in this state based on pressure signals detected by pressure detecting elements, and vital information is calculated based on the detected pulse wave.
Abstract:
A pulse measurement device according to an aspect of the present invention includes a data obtainment unit that obtains a pulse wave signal by detecting a pulse wave using a pulse wave sensor, an exercise intensity obtainment unit that obtains an exercise intensity signal by detecting movement using a body movement sensor, a storage unit that stores the pulse wave signal, a frequency conversion unit that finds a frequency spectrum of the pulse wave signal by converting the time-domain pulse wave signal into a frequency domain, a searched range setting unit that sets a searched frequency range for searching for an intensity peak along a frequency axis of the frequency spectrum, a peak extraction unit that extracts an intensity peak from the searched frequency range, and a pulse rate calculation unit that finds a pulse rate of the measurement subject based on a frequency of the extracted intensity peak. The searched range setting unit changes the searched frequency range based on an exercise intensity indicated by the exercise intensity signal.
Abstract:
In a fluid control device, a check valve includes a first valve housing and a first diaphragm. The first diaphragm defines a first valve chamber and a second valve chamber. An exhaust valve includes a second valve housing and a second diaphragm. The second diaphragm defines a third valve chamber and a fourth valve chamber. The check valve is opened and closed by a difference in pressure between the first valve chamber and the second valve chamber. The exhaust valve is opened and closed by a difference in pressure between the third valve chamber and the fourth valve chamber.