Таблица перевода единиц измерения давления
| Единицы | бар | мм рт.ст. | мм вод.ст. | атм (физич.) | кгс/м2 | кгс/см2 (технич. атм.) | Па | кПа | Мпа |
|---|---|---|---|---|---|---|---|---|---|
| 1 бар | 1 | 750.064 | 10197,16 | 0.986923 | 10.1972 ∙ 103 | 1,01972 | 105 | 100 | 0.1 |
| 1 мм рт.ст. | 1.33322 ∙10-3 | 1 | 13,5951 | 1.31579 ∙10-3 | 13,5951 | 13.5951 ∙10-3 | 133.322 | 133.322 ∙10-3 | 133.322 ∙10-6 |
| 1 мм вод.ст. | 98.0665 ∙10-6 | 73.5561 ∙ 10 -3 | 1 | 96.7841 ∙10-6 | 1 | 0.1∙10-3 | 9.80665 | 9.80665 ∙10-3 | 9.80665 ∙10-6 |
| 1 атм | 1.01325 | 760 | 10.3323 ∙103 | 1 | 10.3323∙ 103 | 1.03323 | 101.325 ∙ 103 | 101.325 | 101.325 ∙10-3 |
| 1 кгс/м2 | 98,0665 ∙10-6 | 73.5561 ∙ 10 -3 | 1 | 96.7841 ∙10-6 | 1 | 0.1∙10-3 | 9.80665 | 9.80665 ∙10 -3 | 9.80665 ∙10-6 |
| 1 кгс/см2 | 0,980665 | 735.561 | 10000 | 0.967841 | 10000 | 1 | 98.0665 ∙ 103 | 98.0665 | 98.0665 ∙10-3 |
| 1 Па | 10 -5 | 7.50064 ∙10-3 | 0,1019716 | 9.86923 ∙10-6 | 101.972 ∙ 10-3 | 10.1972 ∙10-6 | 1 | 10 -3 | 10 -6 |
| 1 кПа | 0.01 | 7.50064 | 101,9716 | 9.86923 ∙10-3 | 101.972 | 10.1972 ∙10-3 | 103 | 1 | 10 -3 |
| 1 МПа | 10 | 7.50064 ∙103 | 101971,6 | 9.86923 | 101.972 ∙103 | 10.1972 | 106 | 103 | 1 |
К системе СИ относятся: Инженерные единицы:
Бар
1 бар = 0,1 Мпа 1 мм рт.ст. = 13.6 мм вод.ст.
1 бар = 10197.16 кгс/м2 1 мм вод.ст. = 0.0001кгс/см2
1 бар = 10 Н/см2 1 мм вод.ст. = 1 кгс/м2
1 атм = 101.325 ∙ 103 Па
Па
1 Па = 1000МПа
1 МПа = 7500 мм. рт. ст.
1 МПа = 106 Н/м2
High-temperature reference quartz crystal resonators RKOV206
High-temperature reference quartz crystal resonators RKOV206. Based on the temperature sensing quartz crystal resonators RKTV206 and RKOV206 the digital medical thermometer, electronic digital and analog controllers and industrial thermometers (accuracy class up to 0.1%) are developed and made.
Features
- RKOV206 is a thermo-stable reference quartz crystal resonator;
- High shock and vibration characteristics;
- Miniature size;
- Wide temperature range (-50…+170…+250…+ 320 °C);
- Low power consumption;
- Suitable for DTCXO and temperature equipment.
Specifications (characteristics)
|
ITEM |
SPECIFICATIONS | REMARKS | |||
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Model of the crystal |
RKOV206A |
RKOV206B |
RKOV206C |
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Package Size |
DS26 (DT26). Diameter 2 mm/ length 6 mm |
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Operating Temperature Range, TOPR |
typical (limiting TOPR) |
-50 °C to +170 °C (+180 °C) |
-50 °C to +250 °C (+260 °C) |
-50 °C to +320 °C (+340 °C) |
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maximum (limiting TOPR) |
-196 °C to +170 °C (+180 °C) |
-196 °C to +250 °C (+260 °C) |
-196 °C to +320 °C (+340 °C) |
Maximum operation temperature range is possibility for an additional payment |
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Average Work Time under the limiting TOPR |
10 minutes |
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Aging first year/next years max. |
± 15 ppm / ± 7 ppm |
± 20 ppm / ± 10 ppm |
+25 °C |
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Frequency Range, fO |
32 kHz to 36 kHz |
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Frequency tolerance, f/fO |
- |
There is a possibility of adjustment with frequency tolerance of ±30; ±60; ±90; ±150; ±1000ppm for an additional payment, see table 1. |
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Equivalent Series resistance, RS |
80 kΩ max. |
+25±5 °C |
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Shunt capacitance, CO |
1.3 ± 0.2 pF typ. |
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Load Capacitance, CL |
- |
There is a possibility of adjustment with load capacitance of 6 pF for an additional payment |
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Drive level, DL |
0.1 µW typ. |
GL: 1.0 µW max. |
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Insulation resistance, IR |
100 MΩ min. |
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Reaction Time Of Thermal Inertia In A Liquid, t |
≤5 sec. |
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Shock Resistance, DF/F0 |
(Drop test 3 times on hard wooden board fr. height 100cm, 5000g. 0.2 ms) / ±7 ppm max. |
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Vibration Resistance, DF/F0 |
10g / 10-2000 Hz, 8 hours / ±7 ppm max. |
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2nd temperature coefficient A2 |
0,044 |
0,051 |
-0.065 |
∆f/f0=A2(T-Tо)2+/-10% |
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Reference Value of Temperature |
25 ± 5 °C |
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Frequency vs. temperature fT=fO +A1*(T-TO) +A2*(T-TO)2, There: fT – crystal’s frequency at current value of temperature T (°C), |
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For getting of the greater accuracy a representation value of fT by a polynomial of the third order and definition of factor of the third order is possible as follow: fT=fO +A1*(T-TO)+A2*(T-TO)2+A3*(T-TO)3 |
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For high-temperature sensing crystals RKTV206(A, B, C) can be picked up the thermo-stable reference quartz crystal resonator RKOV206(A, B, C) with the set difference of frequency.
Based on the temperature sensing quartz crystal resonators RKTV206 and RKOV206 the digital medical thermometer, electronic digital and analog controllers and industrial thermometers (accuracy class up to 0.1%) are developed and made.
External dimensions
UNIT: mm
Possible variants of the RKOV206 different from typical (for an additional payment)
Example for order:
RKOV206A-0-0-0 - typical crystal,
RKOV206A-1-2-1 - Operating Temperature Range -50 °C to +170 °C, Frequency tolerance ±60 ppm and Load capacitance 6 pF.
Temperature characteristic of RKOV206C
Temperature characteristic of RKOV206C
