Patent ID: 9628046
Date: 2017-04-18
CPC Classifications: G01L,H03B,H03H

Claim:
1. A resonator element comprising: a resonator blank including: when a thickness of the resonator blank is set to T, a width of the base portion in a direction intersecting an extending direction of the vibrating arm is set to W1, and a width of the connecting portion in the intersecting direction is set to W2, a relationship of 50 μm≦T≦210 μm is satisfied, and a relationship of 0.067≦W2/W1≦0.335 is satisfied, and when a width of the arm section in the intersecting direction is set to W3, and a width of the weight section in the intersecting direction is set to W4, a relationship of W4≧2.8×W3 is satisfied.