A Transformation of Oral English Teaching Method in the Network Environment

Table 4

Performance parameter table of the sound sensor.

Parameter	Settings	Remarks
Sound intensity measurement	45–120 dB	Gear 1
Measurement waveform	0–5 V	Gear 2
Resolution	1 Hz	—
Precision	±1%	—
Sampling frequency	10000 times per second	Minimum value
Output current	4–20 mA	ZS series
Frequency of calibration	0th	Software automatic zero setting