1. A micro-Gal absolute gravimeter based on high-precision and high-stability heterodyne interferometer is presented.

2. Sea gravimeter is an important equipment for improving the precision of navy inertial navigation systems. The servo loop of gravity sensor determines its precision and dynamic properties.

3. The transformation of GS-15 gravimeter is successful, but the interference of atmospheric pressure will be solved in future.

4. The parameters in linear term parameters of gravimeter tend to nonlinearly decrease when time increases.

5. The errors of LaCoste-G gravimeter are mostly from the variation of the sensitivity. It is necessary to make periodic calibration at standard station.

6. Twice improvements of GS-11 gravimeter in C value standardization with the precision increase in Lanzhou seismic station has been described by the paper.

7. The Scale table of LCR-G gravimeter is given in form of sectional linearity.

7. try its best to collect and make good sentences.

8. The value of gravimeter surveys for gravity change detection lies in the fact that gravity change indicates elevation change.

9. The LaCoste & Romberg airborne gravimeter is the key subsystem of the Chinese airborne gravimetry system.

10. The possibility and the significance of applying this method to the absolute gravimeter is discussed in detail.

11. The two effects are expound, especially the vacuity desire for FG5 absolute gravimeter that is 1.

12. Besides standardization, zero correction error constitutes the most common error source of a gravimeter.

13. We obtained also the relation between gravity and the phase difference of the atom gravimeter.

14. There is a lot of noise in the data observed by airborne gravimeter. Digital lowpass FIRfilter is needed to extract the factual gravity field information from such data.

15. We introduced a method that can improve the measurement precision of the three-level atom gravimeter by changing the sequence of the pulses.

16. One of the most popular approaches to extract the gravity field information from the much noisy measurement that observed by airborne gravimeter is lowpass filtering.

17. Hence, it was shown that there existed obvious systematic error of gravimeter calibration.

18. Based on the theory of gravity prospecting and measuring accuracy of superconductive gravimeter, the migrating and accumulating of residual oil and gas are studied.

19. In order to obtain the potential sensitivity, a new method using the F-Pinterferometer to measure the displacement of the spring oscillator in the traditional gravimeter is proposed.

20. The technical characters, the basic principle and the experimental observation of FG5/232 absolute gravimeter are introduced.