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Popis
High frequency Q meter
The dielectric constant dielectric loss test system of high frequency insulation material consists of S916 test device (příslušenství), GA-971 GA-972 GA-973 type high frequency Q meter, data acquisition and tanδ automatic measurement control (loaded into the software module of GA-971 GA-972 GA-973), and LKI-1 inductor. According to the national standard GB/T 1409-2006, GB/T 1693-2007, the American standard ASTM D150 and the International Electrotechnical Commission IEC60250 regulations design and production. The system provides a jia solution for automatic measurement of high frequency dielectric loss Angle tangent (tanδ) and dielectric constant (E) of insulating materials. The test device in this instrument is composed of a flat plate capacitor, which is generally used to contain the sample to be measured, and Q table is used as an indicating instrument. The loss Angle tangent value of the insulation material is calculated by the formula of the change of Q value and the scale reading of the thickness of the measured sample in the plate capacitor and without the sample. Use the GA-971 or GA-973digital Q meter with automatic calculation of dielectric constant (E) and dielectric loss (tanδ).
| Function name | GA-971 | GA-972 | GA-973 |
| Signal source range DDS digital synthetic signal | 10KHZ-70MHz | 10KHZ-110MHz | 100KHZ-160MHz |
| Source frequency coverage ratio | 7000:1 | 11000:1 | 16000:1 |
| Signal source frequency accuracy 6 digits significant number | 3 X 10-5 ±1 word | 3 X 10-5 ±1 word | 3 X 10-5 ±1 word |
| Q Measuring range | 1-1000 Automatic/manual range | 1-1000 Automatic/manual range | 1-1000 Automatic/manual range |
| Q resolution | 4 significant digits, rozlišení 0.1 | 4 significant digits, rozlišení 0.1 | 4 significant digits, rozlišení 0.1 |
| Q Measurement working error | <5% | <5% | <5% |
| Sensor measurement range 4 significant number resolution 0.1nH | 1nH-8.4H, resolution 0.1nH | 1nH-8.4H resolution 0.1nH | 1nH-140mH resolution 0.1nH |
| Inductance measurement error | <5% | <5% | <5% |
| Tuning capacitance | Main capacitance 30-540pF | Main capacitance 30-540pF | Main capacitance 17-240pF |
| Direct capacitance measurement range | 1pF~2.5uF | 1pF~2.5uF | 1pF~2.5uF |
| Tuning capacitance error | ±1 pF or< 1% | ±1 pF or< 1% | ±1 pF or< 1% |
| Rozlišení | 0.1 pF | 0.1 pF | 0.1 pF |
| Resonance point search | Automatic scanning | Automatic scanning | Automatic scanning |
| Q Qualified preset range | 5-1000 Sound and light prompt | 5-1000 Sound and light prompt | 5-1000 Sound and light prompt |
| Q Range switching | Automatic/manual | Automatic/manual | Automatic/manual |
| LCD display parameter | F, L, C, Q, Lt, Ct band, atd | F, L, C, Q, Lt, Ct band, atd | F, L, C, Q, Lt, Ct band, atd |
| Automatic deduction function of residual inductance and test lead inductance (original) | There are | There are | There are |
| Large capacitance value direct measurement display function (original) | The measured value is up to 2.5uF | The measured value is up to 2.5uF | The measured value is up to 2.5uF |
| Dielectric loss coefficient | Five parts per millionth accuracy | Five parts per millionth accuracy | Five parts per millionth accuracy |
2. S916 (digitální displej) or S914 dielectric constant and dielectric loss factor tano test device:
Pevný: material measurement diameter 050mm/038mm optional; Thickness adjustable 2 15mm (one of two)
Liquid: Measure the diameter of the pole plate 038mm; Liquid cup inner diameter 048mm, depth 7mm (volitelný)
3. LKI-1 inductor set
High frequency Q meter
| Inductance NO | inductance | Přesnost % | Q value ≥ | Approximate value of distributed capacitance | Approximate value of distributed capacitance | Suitable for dielectric constant test frequency | |
| GA-971 | GA-972 | ||||||
| 1 | 0.1μH | ±0.05μH | 200 | 5pF | 20~70 | 31-103 | 50MHz |
| 2 | 0.5μH | ±0.05μH | 200 | 5pF | 10~37 | 14.8 ~ 46.6 | 15MHz |
| 3 | 2.5μH | ±5% | 200 | 5pF | 4.6~17.4 | 6.8~21.4 | 10MHz |
| 4 | 10μH | ±5% | 200 | 5pF | 2.3~8.6 | 3.4 ~ 10.55 | 5MHz |
| 5 | 50μH | ±5% | 200 | 5pF | 1~3.75 | 1.5~4.55 | 1.5MHz |
| 6 | 100μH | ±5% | 200 | 5pF | 0.75~2.64 | 1.06~3.20 | 1MHz |
| 7 | 1mH | ±5% | 150 | 5pF | 0.23~0.84 | 0.34 ~ 1.02 | 0.5MHz |
| 8 | 5mH | ±5% | 130 | 5pF | 0.1~0.33 | 0.148~0.39 | 0.25MHz |
| 9 | 10mH | ±5% | 90 | 5pF | 0.072~0.26 | 0.107 ~ 0.32 | 0.1MHz |
