Total station frequency detection device

1、 Product Introduction:

The frequency detection device consists of rubidium atomic frequency standards, digital frequency counters, digital oscilloscopes, photoelectric converters and other main equipment, as well as related supporting equipment. It is mainly used to carry out precision frequency measurement, distance measurement multiplication constant calibration, and testing of instruments such as total stations and photoelectric rangefinders.

2、 Principle Introduction:

The reference frequency input frequency meter is provided by the rubidium atomic frequency standard as the external standard source of the frequency meter. The precise measurement frequency output by the crystal oscillator of the tested total station (photoelectric rangefinder) is modulated on infrared light waves or visible lasers. The photoelectric converter converts the modulated niobium flame island signal of the rangefinder into an electrical signal, amplifies it, and sends it to the input end of the frequency meter. The actual precise measurement frequency value of the total station (photoelectric rangefinder) can be directly read from the frequency meter.

3、 Technical indicators:

1. Frequency range 1mHZ~9GHz,

2. Time base frequency accuracy ≤ 1x10-8,

3. Measurement uncertainty: ≤ 1x10-7

4、 Product features:

1. The high-precision and high stability rubidium atomic frequency standard is used in conjunction with a digital frequency meter, which has good metrological performance;

2. Can achieve frequency detection for various instruments such as phase based ranging, pulse based ranging, fixed frequency, dynamic frequency, etc

3. Rubidium atoms provide high-precision time and frequency references, with a wide range of extended application functions.