TH1773, a DC Bias Current Source (or DC Magnetization Current Source), is mainly used for inductance measurement of inductors and transformer windings with DC bias current. Except for constant current output, low additional error and wide frequency response range are important for bias current inductance measurement. High frequency LCR meter could be used, when the frequency response range is wide enough. MPU controlled auto current balance technology is adopted to realize AC+DC current overlap and constant current output from 0 to ±10A. With its low additional error, wide frequency response range and sweep output function, the meter is widely used in DC biased inductance measurement. It also provides a perfect solution for magnetic material analysis. Specifications
Specifications
Measurement function
Frequency response range
50 Hz
Current output mode
Single, Multi and Equal interval current output
manual, auto (negative)
2—15 points
0—99 seconds set
Forward/reverse conversion
Impedance measurement range
ωL < 2kΩ, L<8/I (H)
Display
20×2 large-character LCD display with backlight
Additional error of inductance measurement
£
Warm-up time
20 minutes
Continuous 24 hours
Output signal
Output current range
-10A—10A
Set current resolution
200mA range: 0.1mA
2A range: 1mA
10A range: 10mA
Current accuracy
±1% of reading±3 digits
Output voltage range
0
Interface
Interface (option)
RS232C (only for connecting to LCR meter), GPIB interface
General Specifications
Ordering Information
TH1773 DC Bias Current Source
Instrument Accessories
TH26004E-1 bias current source link cable
TH26013 bias current source test cable
TH2881-001 kick start switch
Options
TH26033 GPIB interface cable
TH10101 RS232C interface board