供应2719 功率放大器
西安凯跃电子科技有限公司
中国 西安
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型号
2719 功率放大器
类型
精密噪音计
安装方式
手持式
显示方式
数字式
测量范围
16.4 dB 至 140 dB
测量精度
1db
工作温度
10℃
分辨率
1
加工定制
否
外形尺寸
100mm
重量
2kg
2719 功率放大器设计用于驱动小型振动激振器，尤其是振动激振器4808型
The power amplifier has a usable frequency range from DC to 100 kHz. The rated AC output is 180VA into a 0.8Ω exciter or resistive load, in the frequency range DC to 15 kHz (±0.5 dB). The maximum voltage gain is 14 dB. The harmonic content of the output is very small as heavy negative feedback is used.
The instrument can tolerate temperature and supply-line variations while maintaining excellent stability. Two output modes are selectable via the front panel. The power output stage is directly coupled to the output, and hence to the connected vibration exciter. A current-limiting circuit prevents excessive instantaneous output current peaks. During operation, the voltage, current levels and waveforms can be inspected at the monitor points on the rear panel or RMS readings can be obtained from the LCD display.
Type 2719 consists of an input stage (both AC-coupled and direct), a preamplifier, a power amplifier and various warning and safety circuits with indication lamps. A multifunction display shows output current and output voltage. The amplifier can be used as a voltage generator with low output impedance and a flat voltage frequency response, or as a current generator with high output impedance and a flat current frequency response.
用途
| 特点
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The power amplifier has a usable frequency range from DC to 100 kHz. The rated AC output is 180VA into a 0.8Ω exciter or resistive load, in the frequency range DC to 15 kHz (±0.5 dB). The maximum voltage gain is 14 dB. The harmonic content of the output is very small as heavy negative feedback is used.
The instrument can tolerate temperature and supply-line variations while maintaining excellent stability. Two output modes are selectable via the front panel. The power output stage is directly coupled to the output, and hence to the connected vibration exciter. A current-limiting circuit prevents excessive instantaneous output current peaks. During operation, the voltage, current levels and waveforms can be inspected at the monitor points on the rear panel or RMS readings can be obtained from the LCD display.
Type 2719 consists of an input stage (both AC-coupled and direct), a preamplifier, a power amplifier and various warning and safety circuits with indication lamps. A multifunction display shows output current and output voltage. The amplifier can be used as a voltage generator with low output impedance and a flat voltage frequency response, or as a current generator with high output impedance and a flat current frequency response.
