FUNDAMENTAL STUDY ON INERTIAL SURVEYING 
Takayuki AOKI 
Dpt.of Civil ENG., Chiba Institute of Technology 
2-17-1, Teudanuma, Narashino-shi, Chiba 275,Japan 
Toshio KOIZUMI 
Dpt.of Civil ENG., Chiba Institute of Technology 
Yasuyuki SHIRAI 
Dpt.of Precision ENG., Chiba Institute of Technology 
Commission I, Working Group 1/2 
KEY WORDS:Inertial Surveying, Surveying, Navigation, Instruments, Sensor, Method, System 
Abstruct: 
Inertial surveying is recently developed as an application of inertial navigation system, which has been applied to 
military and civil fields.The fundamental principle of inertial surveying is based on simple machanics.The purpose 
of the present study is to develop a surveying system, which consists of a gyroscope and an accelerometer along with 
a software program.In this paper,the authors performed leveling and traverse survey by using the characteristic 
experimental results of a vibration gyro,an accelerometer,and a device manufactured. 
1.Introduction 
Inertial survey has been obtained by applying an 
inertial navigation unitand has advanced as 
topographical survey technique in recent years.An 
inertial navigation unit is installed onto a vehicle.and 
is used as a sensor for navigation.this system 
measures a speed and angular acceleration during 
movement. Accordingly, unlike the conventional optical 
method, it is capable of comparatively freely selecting a 
necessary point without being influenced by weather 
and visibility. 
In this paper,the authors performed leveling and 
traverse survey by using the characteristic 
experimental results of a vibration  gyro.an 
accelerometer,and a device manufactured. 
For the application to photographic surveying,since 
information on the position and attitude of a camera is 
obtained,the photographic surveying without using 
any reference points becomes possible,thus probably 
increasing the photographic surveying efficiency 
rapidly. 
2. Vibration Gyro 
2.] Experiment of vibration gyro 
In this measurement,a piezoelectric vibration gyro 
model ENV-058 | manufactured by Murata 
Mfg.Co.,Ltd.was used.Unlike a conventional method in 
which the angular momentum of a body of rotation of a 
rate gyro is used,it is said to have long service 
life short ^ starting — time,and good follow-up 
performance,and be resistant to a dynamic 
environment.For the characteristic experiment,a turn 
table(0.01-720' /sec)was used.For the turn table,a rate 
of turn table model C-181 manufactured by Genisco Inc. 
was used.Fig.] shows a graph of the output 
characteristics of a vibration gyro to the rotational 
angular speed.For the output voltage of the vibration 
gyro, the output scale factor to the angular speed at any 
position on the turn table,bacomes 22.77mV/deg/sec 
from Fig.1.The normal linearity of the vibration gyro 
was confirmed. 
  
  
  
  
  
  
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International Archives of Photogrammetry and Remote Sensing. Vol. XXXI, Part B1. Vienna 1996 
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