Stanford QCM200 水晶振動子微量天秤 (5 MHz)

Frequency Measurement:

Frequency display:

   Resolution: 0.01 Hz (10 second gate); 0.1 Hz (1 second gate); 1.0 Hz (0.1 second gate)

   Gate time: 0.1 s, 1 s, 10 s, user-selectable

Measurement (using internal timebase):

   Stability: <4 × 10-9 Allan Variance (typ.)

   Accuracy: ±1.5 ppm

Analog output:

   Δf output: ±10 V full scale (20-bit)

   Ranges: ±200 kHz, ±100 kHz, ±50 kHz, ±20 kHz, ±10 kHz, ±5 kHz, ±2 kHz

Frequency output:

   Frequency: 5 MHz (nominal)

   Level: TTL (square wave)

   Source impedance: 50 Ω

Ext. timebase input: 

   Frequency: 10 MHz

   Level: 1 Vpp (nominal)

Resistance Measurement:

Resistance display:

   Range: 0 to 5000 Ω

   Resolution: 5 digits:

0.001 Ω for R < 100 Ω

0.01 Ω for 100 Ω ≤ R < 1000 Ω

0.1 Ω for 1000 Ω ≤ R < 5000 Ω

Conductance output (Vc):

   Resistance: R = 10,000 x (10-Vc/5) - 75 Ω

   Resistance range: 0 to 5000 Ω

   Voltage level: 0 to 10.625 VDC, log scale

   Impedance: 1 kΩ

Physical:

Analog connectors: BNC

Interface: RS-232, 9600 baud

Dimensions: 10.625" × 2" × 7" (WHL)

Dimensions, weight: 10.6" × 2" × 7" (WHL), 2 lbs.

Operating temperature: 0 °C to 40 °C

Power: 15 W, 100/120/220/240 VAC, 50/60 Hz

Quartz Crystals (polished):

Frequency: 5 MHz, AT-cut, plano-plano

Diameter: 1 inch

Electrodes: Cr/Au (Ti/Au, Ti/Pt opt.)

Datasheet

Manual