High Frequency Generator Characteristics, Functions and Requirements

High frequency generator is also called radio frequency generator. Inductively coupled plasma atomic emission spectrometry/mass spectrometry and other devices used to generate plasma torches. The high-frequency current generated by it is fed to the inductor coil to excite the argon gas in the quartz torch (placed in the coil) to form a plasma torch. Our company provides HF(RF) wooden frame joining machine.

There are two types of self-excited and other-excited (crystal controlled) oscillators. Oscillation frequency is 3～50MHz, often 27.12MHz and 40.68MHz, output power is 0.7～7kW, usually 1.0～2.0kW.

Characteristics of high frequency generator

1. The high-frequency generator is small in size, light in weight, more beautiful, more reliable, easy to operate, complete in function, easy to use in the field, and is the most ideal and reliable product in the new century.

2. The high-frequency generator adopts advanced technology and manufacturing technology, uses pulse train logic array modulation, uses high-power IGBT devices, uses high-frequency technology to increase the frequency, the frequency is up to 100kHz, so that the output high-voltage stability is higher, and the Boven coefficient smaller.

3. The measurement of high frequency generator is more accurate. The high-frequency generator solves many problems of low electronic accuracy and inaccurate measurement. The voltage and current of the high-frequency generator are digitally displayed. The voltage resolution is 0.1kv, the current resolution is 0.1uA, and the voltmeter on the control box directly displays The voltage value added to the load test product does not require an external voltage divider during use, and the wiring is simple.

The role of high frequency generator

After inputting a certain range of power supply voltage, the high-frequency generator generates a 2.65MHZ high-frequency constant voltage and sends it to the power coupler. The power coupler establishes a strong electrostatic field in the discharge space of the glass bulb to ionize the atmosphere in the discharge space, and To produce strong ultraviolet light, the three primary color phosphors on the inner wall of the glass bulb are excited by strong ultraviolet light to emit light. In the design of the power supply, due to the use of APFC power control technology and the use of IC technology, on the one hand, the power factor of the power supply is as high as 0.95; on the other hand, the high-frequency generator always lights at a high-frequency constant voltage. Therefore, when the input power voltage fluctuates within a certain range, its luminous brightness remains unchanged.

High frequency generator requirements

1. The oscillation frequency of the high-frequency cattle generator is generally 27.12MHz or 40.68MHz, and the output power is generally 1 to 1.5kW.

2. The smaller the reflected power, the better, generally less than 10W.

3. The output power of the high-frequency generator is required to have excellent stability, because as long as there is a 0.1% drift in the power delivered to the ICP, the emission intensity can change by more than 1%. Therefore, the power change of the high-frequency generator must be less than ±0.05%.

4. The high-frequency generator should have a good grounding device. The smaller the grounding resistance, the better. Generally, it is better not to exceed 4Ω.

The above information is provided by high frequency joining machine manufacturer.