VIBRATION DETECTING DEVICE

• US 20080202246A1
• Filed: 02/15/2008
• Published: 08/28/2008
• Est. Priority Date: 02/22/2007
• Status: Abandoned Application

• Current Assignee: ALPS Electric Company Limited (Alps Alpine Co., Ltd.)
• Original Assignee: ALPS Electric Company Limited (Alps Alpine Co., Ltd.)
• Inventors: Suzuki, Tetsuya
• Application Number:
  US12/032,120
• Publication Number:
  US 20080202246A1
• Time in Patent Office: Days
• US Class Current: 73/649
• CPC Class Codes: A61B 5/02007 Evaluating blood vessel condition, e.g. elasticity, compliance
• CPC Class Codes: A61B 5/021 Measuring pressure in heart or blood vessels A61B5/0205 takes precedence
• CPC Class Codes: A61B 5/02125 of pulse wave propagation time
• CPC Class Codes: A61B 5/0285 Measuring or recording phase velocity of blood waves
• CPC Class Codes: A61B 5/681 Wristwatch-type devices
• CPC Class Codes: A61B 5/6824 Arm or wrist
• CPC Class Codes: A61B 5/6826 Finger
• CPC Class Codes: A61B 5/6838 Clamps or clips
• CPC Class Codes: A61B 5/7239 using differentiation including higher order derivatives

Abstract

A vibration detecting device comprises an electric field changing unit that changes an electric field using the vibration of an object to be measured, an electric field detecting unit that detects the electric field changed by the electric field changing unit, and a converting unit that converts the variation in the electric field into waveform data.

Claims

1. A vibration detecting device comprising:

an electric field changing unit that changes an electric field using the vibration of an object to be measured;

an electric field detecting unit that detects the electric field changed by the electric field changing unit; and

a converting unit that converts the variation in the electric field into waveform data.

2. The vibration detecting device according to claim 1,

wherein the electric field changing unit is a piezoelectric element.

3. The vibration detecting device according to claim 1,

wherein the electric field changing unit includes:

a magnetic material with elasticity; and

a coil that is disposed at a position that is affected by a magnetic field generated by the magnetic material.

4. The vibration detecting device according to claim 1,

wherein the vibration is a pulse wave.

5. The vibration detecting device according to claim 2,

wherein the vibration is a pulse wave.

6. The vibration detecting device according to claim 3,

wherein the vibration is a pulse wave.