Troxler 3430 User Manual

Model 3430
2-1
CHAPTER 2
THEORY OF OPERATION
This chapter contains a brief description of the theory of operation
of the Model 3430 Surface Moisture-Density Gauge. The direct
transmission and backscatter modes of operation are illustrated
along with a brief explanation of the cesium-137 source, americium-
241:beryllium or californium-252 source, and detector geometry.
CONTENTS
Density ........................................................................................... 2-2
Moisture ......................................................................................... 2-5
OPERATION THEORY

Troxler 3430 Specifications

General

Measurement Principle	Nuclear
Power Source	Rechargeable battery
Display	LCD
Data Storage	Internal memory
Type	Portable
Material Measured	Soil, Asphalt
Moisture Measurement Range	0 to 60%
Operating Temperature	-10 to 50°C
Source	Cesium-137