产品热度： 加载中
品 牌： 惠普
产品型号： HP339A
详细说明
失真仪 HP 339A 厂家: 美国惠普
Distortion Analyzer 性能指标pdf
Ultra low distortion measurements Built-in low distortion oscillator Automatic True RMS detection Distortion Measurement Set Distortion Measurements
fundamental frequency range is 10 Hz to 110 kHz with 2 digit resolution measurement range is 100% to 0.01%, (0 dB to -80 dB) Oscillator
Oscillator distortion ( >600 ohm load, <3 Vrms)
10 Hz to 20 kHz < -93 dB (0.0022%) THD 20 kHz to 30 kHz < -85 dB (0.0056%) THD 30 kHz to 50 kHz < -80 dB (0.01%) THD 50 kHz to 80 kHz < -70 dB (0.032%) THD 80 kHz to 110 kHz < -65 dB (0.056%) THD
Voltmeter
Hewlett-Packards Model 339A Distortion Measurement Set is an ultra low distortion measuring system complete with total harmonic distortion (THD) analyzer, true-rms voltmeter, and sinewave oscillator. This small, lightweight bench measurement set allows you to make THD distortion measurements as low as 0.0018% over a 10 Hz to 110 kHz frequency band including harmonics to 330 kHz.
For fast and easy THD measurements the built-in tracking oscillator in HPs 339A saves test time because you tune one instrument instead of two. Frequency and level measurements are easy to do with HPs 339As voltmeter, which offers you a 1 mV to 300 V measurement range. The Relative Level mode has been included to further simplify frequency response measurements. Just set a 0 dBm reference at any frequency from 10 Hz to 110 kHz. Gain measurements can be read directly from the easy-to-read meter.
Operation Simplicity
Automatic frequency tuning and set-level features allow you to make rapid, error free THD measurements. The 339As built-in tracking oscillator eliminates the need to find the fundamental frequency and tune the analyzer for a null. Just select your oscillator frequency and the rest is automatic. Automatic set-level saves time by automatically setting 0 dB (100%) reference in the distortion measuring mode. Front panel directional indicators light when the input range setting is improper insuring accurate and repeatable measurements where distortion as a function of a level (SINAD, for example) is desired. Without this feature, measurements are very time consuming and tedious.
When an external stimulus is used, analyzer tuning is simplified by directional indicator lights for reaching the fundamental null quickly and easily.
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