INDUCTIVE CURRENT PROBES (I DOT SENSORS)
RID-200 SERIES
DESCRIPTION
The RID-200 I Dot sensors are 2- or 4-turn toroidal mutual inductance current probes designed to measure the first time derivative of the total current through the toroid aperture. They are radiation hardened for use in a nuclear environment. Applications include measurement of the current in a wire, structure or other conductor passing through the aperture, or a free space current such as a charged particle beam. The standard configuration is a solid body with a differential 100 ohm output, but a split version and other output and connector options can be provided on special order.
The output of the sensor is proportional to the time rate of change of the aperture current. The pertinent equation for this device is:
Vo = M dI
dt
where
Vo = Sensor Output (volts)
M = Sensor Mutual Inductance, (Henries)
I = Total current through aperture (Amperes)
ELECTRICAL SPECIFICATIONS:
Model |
RID -210 |
RID-220 |
RID-230 |
RID-240 |
RID-250 |
RID-260 |
RID-270 |
| M (nanoHenries) | 2.0 |
2.5 |
10.0 |
0.5 |
10.0 |
10.0 |
10.0 |
| Freq Resp (3dB MHz) | >700 |
>350 |
>700 |
>1400 |
>300 |
>1400 |
>1400 |
| Risetime (ns) | <0.5 |
<1 |
<0.5 |
<0.25 |
<0.3 |
<0.25 |
<0.25 |
| Max Output (kV) | 5 |
5 |
5 |
5 |
5 |
5 |
5 |
| Output imped. (ohms) | 100 |
100 |
100 |
50 |
100 |
100 |
100 |
| Output | Diff |
Diff |
Diff |
Sgl End |
Diff |
Diff |
Diff |
| Output connector | TCC* |
TCC* |
TCC* |
Type N* |
TCC* |
TCC* |
TCC* |
* OTHER CONNECTOR TYPES ARE AVAILABLE
PHYSICAL SPECIFICATIONS:
| Aperture Dia (in) | 3.82 | 7.52 | 3.94 | 3.87 | 7.52 | 1.50 | 0.75 |
| Overall Dia (in) | 6.00 | 13.75 | 7.00 | 6.00 | 13.75 | 3.25 | 2.50 |
| Height (in) | 1.18 | 2.57 | 3.00 | 1.25 | 2.57 | 2.00 | 1.50 |
| Stem Projection (in) | 2.25 | 2.25 | 2.25 | 1.25 | 2.25 | 2.25 | 2.25 |
| Mass (kg) | 1.55 | 12.49 | 1.63 | 5.50 | 12.49 | 1.00 | 0.75 |
