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The model 1250A Frequency Response Analyzer (FRA) delivers accurate measurement of gain and phase. The device under test is stimulated by a sinewave and the response analyzed at one, two or more points in the system. These responses are then correlated with the stimulus to determine the amplitude and phase relative to the generator. The ratio of the two measured signals can then be used to provide the system transfer function.
This process rejects all harmonics and, by increasing the integration time, even signals which are buried in noise can be measured accurately.
The 300 V range on the 1250A is particularly useful for making measurements on fuel cell stacks and high voltage batteries, used in hybrid vehicles and residential power supplies. Key product features include:-
The 1250A together with a potentiostat such as the model 1287A, can be used in a wide range of applications, including:-
Synchronizer
The synchronizer option enables the generator to be locked to a rotating / reciprocating component, and measurements can then be made relative to this. Applications include turbine analysis - using harmonics to enable crack detection.
Modulator / Demodulator
This optional card allows the user to superimpose an external modulator signal onto the 1250 generator signal which acts as a carrier. This modulation signal can then be demodulated through the analyzer inputs. Applications include telecommunications and automated test systems.
If computer-only operation is required, consider the model 1250B
Generator | ||||
Waveform | Sine, square or triangle | |||
Amplitude | 10 mV to 10.23 V rms | |||
Maximum AC resolution | 10 mV | |||
DC Bias Range | ±10.23 V | |||
Maximum DC resolution | 10 mV | |||
Output impedance | 50 Ω±1% | |||
Max output current | ±100 mA peak | |||
Frequency range | 10 µHz to 65 kHz | |||
Max resolution | 10 µHz | |||
Error: | ±100 ppm | |||
Distortion | <2% | |||
Stability | 24 hrs ±1ºC | |||
±10 ppm | ||||
Sweep types | Frequency (logarithmic or linear) | |||
Amplitude (linear) | ||||
DC bias (linear) | ||||
Resolution | ||||
frequency | >10000 points | |||
amplitude | >200 points | |||
Maximum voltage hi to lo | ±46 V peak | |||
Maximum voltage lo to ground | 150 V peak | |||
Maximum current | ±100 mA peak | |||
Impedance lo to ground | 100 kΩ // 100 pF | |||
Connectors | Single BNC, floating shield | |||
Front | floating, 4mm | |||
Rear | floating, BNC | |||
Protection | Output is short-circuit protected | |||
Analyzers | ||||
Two independent analyzers operating in parallel | ||||
Range | Dynamic range | FS Peak Input |
Common Mode Rejection |
|
30 mV | 1 µV (90 dB) | 45 mV | 30 V | |
300 mV | 10 µV (90 dB) | 500 mV | 30 V | |
3 V | 100 µV (90 dB) | 5 V | 30 V | |
30 V | 1 mV (90dB) | 50 V | 500 V | |
300 V | 10 mV | 500 V | 500 V | |
Inputs protected to | ±500 V (300 V rms), hi or lo to ground | |||
Coupling | DC or AC (< -1 dB at 2.5 Hz) | |||
Input impedance hi or lo to ground | 1 MΩ, <35 pF | |||
Cross-channel isolation @ < 10 kHz | >100 dB (1kΩ across inputs) | |||
Measurement delay |
0 to 105 s |
|||
Displayed Results | ||||
Variable | Frequency, AC amplitude, DC bias | |||
Measured parameters | Voltage gain, phase, real, imaginary, Z, R, X, Y, G, B, V, I group delay, C, L, Q, D | |||
Interfaces | ||||
RS232 & GPIB (IEEE-488) | For instrument control or for directly driving attached plotter using HPGL language | |||
Power Requirements | ||||
Voltage | 90 to 127V, 188 to 265 VAC | |||
Frequency | 45 to 440 Hz | |||
Power | < 210 VA | |||
Dimensions | ||||
Width | 432 mm (17") | |||
Depth | 573 mm (22.56 ") | |||
Height | 176 mm (6.93") | |||
Weight | 18 kg (40 lbs) | |||
Operating Temperature Range | 0 to 50ºC (32 to 122ºF) |
企业名称
北京三尼阳光科技发展有限公司
企业信息已认证
企业类型
信用代码
110108011109964
成立日期
2008-06-16
注册资本
50
经营范围
技术推广;软件开发;电子机械设备租赁;维修电子机械设备;销售电子产品、机械设备;货物进出口、技术进出口、代理进出口。(企业依法自主选择经营项目,开展经营活动;依法须经批准的项目,经相关部门批准后依批准的内容开展经营活动;不得从事本市产业政策禁止和限制类项目的经营活动。)
北京三尼阳光科技发展有限公司
公司地址
北京市朝阳区东四环中路41号嘉泰国际大厦1209-1210室
客服电话