交流數(shù)字毫伏表型號：TC1931D

性能特點(diǎn):4位數(shù)顯,采用單片機(jī)技術(shù),集模擬與數(shù)字技術(shù)于一體,是一種通用型智能化的全自動(dòng)交流毫伏表.測量精度高,速度快,輸入阻抗高,頻率影響誤差小等特點(diǎn),具備自動(dòng)和手動(dòng)測量功能,同時(shí)顯示電壓值和db/dbm值.可測量兩路信號,選配電腦接口232或488.
主要技術(shù)指標(biāo):測量電壓范圍:100uV-300V
                    db測量范圍:-80db-50db(0db=1V)
                    dbm測量范圍:-77dbm-52dbm(0dbm=1mw600Ω)
                     量程:3mV  30mV  300mV  3V  30V  300V
                     頻率范圍:5Hz-2MHz
                     電壓測量誤差:(以1KHz為基準(zhǔn)20℃環(huán)境溫度下)
                                        50KHz-100KHz  20Hz-50KHz     ±3%讀數(shù)±10個(gè)字%讀數(shù)±8個(gè)字
                                        20Hz-50KHz     ±3%讀數(shù)±10個(gè)字
                                         5Hz-2MHz        ±5%讀數(shù)±20個(gè)字
                       db測量誤差:  ±1個(gè)字
                       dbm測量誤差:  ±1個(gè)字
                       輸入電阻:10MΩ
                       輸入電容:不大于30pF
                      外型尺寸:274×225×88mm