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(1) It can replace traditional horizontal pendulum tiltmeter completely.

(2) Tiltmeter is a kind of sensor for tilt measurement.

(3) A biaxial vertical pendulum tiltmeter and its structure, component and principle, is introduced.

(4) Torsion pole spring tiltmeter is a mini- Tiltmeter whose applied field is very wide, and it can be used to detect the floor tilt.

(5) The results show that tiltmeter has responded to reservoir impounding, especially in the detail layers of long period.

(6) Observation data of water tube tiltmeter with type FSQ of Tanchang station from 1990 to 1998 are analysed.

(7) The vertical pendulum tiltmeter has bigger drift and with lower inner accuracy.

(8) Torsion pole spring tiltmeter , whose structure is simple and small, is widely applied to production of industry and agriculture, physical geography and scientific experiment.

(9) The vertical pendulum tiltmeter in Karamay seismic station was transformed digitally with EDAS-3 16 digit data acquisition unit and MDS-2710 data radio.

(10) The model DSQ water tube tiltmeter is a digital seismic precursory instrument developed in the 9th 5-year-plan.

(11) After horizontal pendulum tiltmeter is fast and precisely adjusted by using this method given in this paper, tiltmeter operates in best position.

(12) The author analyzed the observation data of DSQ tiltmeter in recent 2 years preliminarily, summarized main interference factors influencing DSQ tiltmeter.

(13) Tiltmeter mapping results indicate that majority of re - fracture treatment wells appear fracture reorientation.

(14) The application conditions and methods of using the tiltmeter are described.

(15) The working status of vertical pendulum tiltmeter in Yanshou Seismostation of Harbin is introduced, and several earthquake strain steps recorded by the instrument are presented.

(16) Using tiltmeter arrays and GPS technology for continuous real-time monitoring of dams is an advanced method.

(17) The tiltmeter , adopting a high-precision capacitance sensor, has many advantages such as new structure, small size, high stability(sentencedict .com), and wide measurement range.

(18) Based on the water tube tiltmeter observatory data, the author analyses the ground tilt tide, finds that the abnormal change of amplitude factors of EW and NS componts is corresponding to earthquakes.

(19) The principle and software of the auto zero point adjustment circuit in VS tiltmeter are described.

(20) In this paper, formulae of calculating best operating position of horizontal pendulum tiltmeter are derived, choice of precision and parameter are discussed.

(21) A novel calibration apparatus called springy board calibrator that can be used for calibrating the extensometer, tiltmeter etc. has been developed.

(22) Non-synchronous temperature variation at two end reservoirs of water tube tiltmeter is one of the most important interference sources.

(23) In this paper, the design idea and the fundamental function of the each part of the FSQ Type float water-tube Tiltmeter are expounded.

(24) The result shows that the records of FSQ water tube tiltmeter at Lanzhou deformation station has good medium-short response to earthquake occurred in neighboring regions.

(25) A novel calibration apparatus called springy board calibrator that can be used for calibrating the extensometer, tiltmeter etc.

(26) This paper is about contrast and analysis of digital and analogic data of parallel observation with water tube tiltmeter and tensometer in Shandong province.