Dosage-rate meter


Posted on Sep 19, 2012

A commercial diode is the detector in this highly accurate radiation monitor. The lowdrift FET-input op amp amplifies detector current to a usable level, and the chopper-stabilized amplifier then provides additional gain while minimizing any error caused by ambient-temperature fluctuations


Dosage-rate meter
Click here to download the full size of the above Circuit.

Gain is adjusted so that the output voltage is 1% of incident radiation intensity in rads per minute; therefore voltage can be displayed on digit DVM for direct reading of dosage rate. Output voltage from the monitor is linearly proportional to radiation intensity at the diode.




Leave Comment

characters left:

New Circuits

.

 


Popular Circuits

Computer Serial Port interface
Java virtual machine for the Atmel AVR ATmega8
Smoke-detector
Low-forward-drop-rectifier-circuit
Inverting-sample-and-hold
Seven kinds of analysis that sentence to the odd circuit implement method are compared
simple accu charger circuit
555 as the core of a circuit diagram of proximity switch



Top