A Transformation of Oral English Teaching Method in the Network Environment

Table 1

Performance parameters of the sound sensor.

Parameter	Setup	Remarks
Measuring sound intensity	45–120 dB	Gear 1
Measurement waveform	0–5 V	Gear 12
Resolving power	1 Hz	—
Accuracy	±1%	—
Sampling frequency	10000 times/s	Minimum value
Output current	4–20 mA	ZS series
Calibration times	0 times	Software automatic zero adjustment