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Месяц | Минимальная цена | Макс. стоимость |
---|---|---|
Sep-18-2025 | 0.1 $* | 0.31 $* |
Aug-18-2025 | 0.39 $* | 0.68 $* |
Jul-18-2025 | 0.80 $* | 0.60 $* |
Jun-18-2025 | 0.65 $* | 0.88 $* |
May-18-2025 | 0.93 $* | 0.5 $* |
Apr-18-2025 | 0.57 $* | 0.28 $* |
Mar-18-2025 | 0.41 $* | 0.39 $* |
Feb-18-2025 | 0.74 $* | 0.76 $* |
Jan-18-2025 | 0.64 $* | 0.14 $* |
HP206 4.5Hz geophone element All parameters are specified at +20° C in the vertical position unless otherwise stated. | ||||
Frequency | Natural Frequency (Fn) | 4.5Hz | ||
Tolerance | ±0.5Hz | |||
Spurious Frequency | >120Hz | |||
Distortion | Distortion | < 0.3% | ||
Distortion at vertical | < 0.3% measured at 12 Hz with 0.7 in/s p-p | |||
Damping | Open Circuit Damping | 0.6 | ||
Tolerance | ± 5% | |||
Coil Resistance | Standard | 375ohm | ||
Tolerance | ± 5% | |||
Sensitivity | Open Circuit Intrinsic Voltage Sensitivity | 28.8 V/m/s (0.73 V/in/s) | ||
Tolerance | ±5% | |||
Physical Characteristics | Moving Mass | 11 .1g (0.39 oz) | ||
Max. Coil Excursion p.p. | 4mm (0.16 in) | |||
Diameter | 25.4 mm (1.0 in) | |||
Height | 36mm (1.4 in) | |||
Weight | 81 g (2.86 oz) | |||
Operating Temperature Range | ﹣40℃ - +90℃ | |||
Warranty excludes damage caused by high voltage and physical damage to the element case. SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT PRIOR NOTICE. |
Type | 20DX-4.5Hz | 20DX-8Hz | 20DX-10Hz | 20DX-14Hz | 20DX-28Hz | 20DX-35Hz | 20DX-40Hz | 20DX-60Hz | 20DX-100Hz | ||||||||
Natural Frequency (Hz) | 4.5±0.5Hz | 8±5% | 10±5% | 14±5% | 28±5% | 35±5% | 40±5% | 60±5% | 35±5% | ||||||||
Open Circuit Damping | 0.7 | 0.38 | 0.3 | 0.22 | 0.27 | 0.39 | 0.37 | 0.457 | 0.54 | ||||||||
Shunt Resistor: Damping - 1k ohm | --- | 0.71±5% | 0.70±5% | 0.51±5% | 0.552±5% | ||||||||||||
Damping - 1500 ohm | --- | 0.612±5% | 0.57±5% | 0.6±5% | 0.65±5% | ||||||||||||
Open Circuit Intrinsic Voltage Sensitivity (V/m/s) | 23.4±10% | 28 | 28 | 28 | 39 | 41 | 42 | 39 | 49.3 | ||||||||
Sensitivity with Shunt Resistor (V/m/s) | --- | 35±5% | 20±5% | 20.1±5% | 28±5% | 29.6±5% | 30.4±5% | 27±5% | 32±5% | ||||||||
Coil Resistance (Ohm) | 395±5% | 395±5% | 395±5% | 395±5% | 395±5% | 575±5% | 575±5% | 668±5% | 808±5% | ||||||||
Harmonic Distortion (%) | ≤0.30 | ≤0.20 | ≤0.20 | ≤0.20 | ≤0.20 | ≤0.20 | ≤0.20 | ≤0.20 | ≤0.20 | ||||||||
Typical Spurious Frequency (Hz) | >160 | >180 | >200 | >240 | >350 | >350 | >380 | >400 | >600 | ||||||||
Moving Mass (g) | 11 | 8.2 | 8.2 | 6.5 | 7.6 | ||||||||||||
Typical Case to Coil Motion (p-p) (mm) | 1.5(p-p) | ||||||||||||||||
Allowable Tilt | 0° | 20° | 90° | ||||||||||||||
Unit Diameter (mm) | 25.4 | 27 | |||||||||||||||
Unit Height (mm) | 33.5 | ||||||||||||||||
Unit Mass (g) | 86 | 97 | |||||||||||||||
Operating Temperature (ºC) | ﹣40℃ to +100℃ | ﹣40℃ to +70℃ | ﹣40℃ to +100℃ |
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