In a crystal oscillation device (1), a crystal oscillation element (11) is mounted upon a substrate (2) by bonding layers (12, 13).

A crystal based oscillator cannot handle frequencies above 40MHz in fundamental mode.

The main advantage of a crystal oscillator over a tuned LC oscillator is:

Provided is a crystal oscillation device wherein oscillation of a crystal oscillator is not easily deteriorated.

The present invention provides a tuning-fork-type crystal oscillator capable of simplifying a process for forming an extraction electrode.

The injection circuit section (16) can use a crystal oscillator for a stable low frequency.

Techniques are disclosed for estimating a frequency of a crystal oscillator based on temperature.

An oscillating circuit (10) includes a quartz crystal oscillator (12) for generating a clock signal (20).

This was the first time I built a crystal oscillator.

Transmitting a precise signal through a quartz crystal oscillator

A33-07-02-02 Frequency measurement and setting (crystal oscillator).

The oscillating signal may be generated by a signal generator having a mechanical resonator, such as a crystal oscillator.

In a voltage controlled crystal oscillator (Figure 4), control of the crystal frequency is effected by placing an adjustable reactance in series with the crystal.

The crystal oscillation element (11) is configured using an AT-cut crystal substrate (14) which has a length direction, said length direction being the z-axis direction.

Provided is a crystal oscillation device such that both mechanical rigidity and electrical characteristics can be improved.