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VT CAMP-2G05 - USB Digital Charge Amplifier
VT-CAMP-2G05
PC USB 24-bit dual-channel 48 kSPS 0.03Hz~23kHz Data Acquisition Interface with Charge Input / Digital Charge Amplifier                                     Manual
                    US$599.95                Free Express Shipping
VT CAMP-2G05 VT CAMP-2G05A VT CAMP-2G05B

Download and try the fully functional Multi-Instrument software using your sound card as the ADC and DAC device!

1. Instroduction

VT CAMP-2G05 is a 24-bit, dual-channel, USB data acquisition interface specially designed for use with sensors with electric charge output such as piezoelectric sensors. Each channel has a built-in charge amplifier with 12 calibrated charge measurement ranges for easy calibration to sensor sensitivity: ± 250 pC, ± 500 pC, ± 1 nC, ± 2.5 nC, ± 5 nC, ± 10 nC, ± 25 nC, ± 50 nC, ± 100 nC, ± 250 nC, ± 500 nC, ± 1 µC. High-precision capacitors with low dissipation factors, low dielectric absorptions and very constant capacitance values against temperature and humidity variation are used in the charge amplifiers to convert charge to voltage. The charge amplifiers are equipped with an overload indicator and a reset facility. Each channel contains a hardware high-pass filter with 5 selectable -3dB corner frequencies: None (0.03 Hz), 1.8 Hz, 119 Hz, 236 Hz and 464 Hz. The signals sensed by the charge-output sensors can be amplified and output directly from the stereo headphone jack even without running the PC software. When used in conjunction with the Multi-Instrument® software, the setup allows you to take reliable and quality vibration and noise measurements as simply as plug & play. No external power supply and driver installation is required. It is a truly hassle-free portable vibration and noise test & measurement solution.
 
VT CAMP-2G05A has the same specifications as VT CAMP-2G05, except that its Channel B has a 60 dB higher analog gain, with its charge measurement ranges changed to: ± 250 fC, ±500 fC, ± 1 pC, ± 2.5 pC, ± 5 pC, ± 10 pC, ± 25 pC, ± 50 pC, ± 100 pC, ± 250 pC, ± 500 pC, ± 1 nC. The increased gain makes it more capable of measuring low level signals such as a low-dB sound in water.

VT CAMP-2G05B has the same specifications as VT CAMP-2G05, except that its two input channels A & B have a 60 dB higher analog gain, with their charge measurement ranges changed to: ± 250 fC, ± 500 fC, ± 1 pC, ± 2.5 pC, ± 5 pC, ± 10 pC, ± 25 pC, ± 50 pC, ± 100 pC, ± 250 pC, ± 500 pC, ± 1 nC. The increased gain makes it more capable of measuring low level signals such as a low-dB sound in water.

It is possible to run multiple VT CAMP-2G05/A/B using multiple instances of the software on the same computer.

2. Package Contents

1) VT CAMP-2G05/A/B unit with a hardware activated Multi-Instrument Standard software license
2) USB cable (1.5 m)
3) CD (contains the copy-protected Multi-Instrument Software)
4) Carrying case


3. Optional Items

You may follow the links below to purchase the optional items:
1) Charge-mode Piezoelectric AccelerometersForce Sensors,  Impedance Heads, Impact Hammers, Pressure Sensors, (including a mounting stud / screw and a cable from sensor to BNC, default: 2m)
2) Charge-mode Piezoelectric Contact Microphones
3) Charge-mode Piezoelectric Film Sensors
4) Charge-mode Piezoelectric Hydrophones
5) Magnetic Mounting Bases
6) Software License Upgrades
7) USB Isolators
8) Calibration Capacitors
 
Note: It is usually possible to place the optional items inside the same carrying case with VT CAMP-2G05/A/B.

4. Hardware Specifications

Number of Input Channels 2
Sampling Frequency 48 kHz (original), 44.1 kHz, 32 kHz, 22.05 kHz, 16 kHz, 11.025 kHz, 8 kHz, 4 kHz, 2 kHz ...
ADC Bit Resolution 24 Bits (can be reduced to 16 bits or 8 bits)
Input Charge Ranges CAMP-2G05:
± 250 pC, ± 500 pC, ± 1 nC, ± 2.5 nC, ± 5 nC, ± 10 nC, ± 25 nC, ± 50 nC, ± 100 nC, ± 250 nC, ± 500 nC, ± 1 µC

CAMP-2G05A:
Ch.A: ± 250 pC, ± 500 pC, ± 1 nC, ± 2.5 nC, ± 5 nC, ±10 nC, ± 25 nC, ± 50 nC, ± 100 nC, ± 250 nC, ± 500 nC,
± 1 µC
Ch.B: ± 250 fC, ± 500 fC, ± 1 pC, ± 2.5 pC, ± 5 pC, ±10 pC, ± 25 pC, ± 50 pC, ± 100 pC, ± 250 pC, ± 500 pC,
± 1 nC

CAMP-2G05B:
± 250 fC, ± 500 fC, ± 1 pC, ± 2.5 pC, ± 5 pC, ± 10 pC, ± 25 pC, ± 50 pC, ± 100 pC, ± 250 pC, ± 500 pC, ± 1 nC
Input Connectors & Interface BNC, Single Ended
Input Coupling Type AC (High-pass filtered at 0.03 Hz)
Input Isolation No (Isolation can be achieved through a USB isolator)
(Voltage) Input Impedance 1 kΩ
Input High Pass Filter None, 1.8 Hz, 119 Hz, 236 Hz, 464 Hz
Charge Amplifier Time Constants CAMP-2G05:
1210 s(6 Higher Ranges), 12.1 s (6 Lower Ranges)

CAMP-2G05A:
Ch.A: 1210 s (6 Higher Ranges), 12.1 s (6 Lower Ranges)
Ch.B: 1.21 s (6 Higher Ranges), 0.0121 s (6 Lower Ranges)

CAMP-2G05B:
1.21 s (6 Higher Ranges), 0.0121 s (6 Lower Ranges)
Frequency Response CAMP-2G05: 0.03 Hz ~ 22.8 kHz

CAMP-2G05A:
Ch.A: 0.03 Hz ~ 22.8 kHz
Ch.B: 0.13Hz ~ 22.8 kHz (6 Higher Ranges); 13 Hz ~ 22.8 kHz (6 Lower Ranges)

CAMP-2G05B:
0.13Hz ~ 22.8 kHz (6 Higher Ranges); 13 Hz ~ 22.8 kHz (6 Lower Ranges)
Frequency Accuracy 50 PPM
Anti-aliasing Filter 22.8 kHz at Sampling Rate 48 kHz, proportionally adaptive to Sampling Rate Chosen
Buffer Size Virtually unlimited (streaming mode)
Charge Accuracy ±0.5% at 1000Hz (FS>=250pC); ±2% at 1000Hz (FS<250pC);
Output Connector & Interface ϕ3.5 mm Stereo Audio Jack
Output Voltage Range  ±0.5 V
Digital Input / Output Standard USB Audio Class 1
Calibration Individually done at factory, user re-calibratable
PC Interface USB 2.0 Full Speed / USB 1.1
Device Category in Multi-Instrument ADC Device Sound Card MME
DAC Device Not Applicable
Power Bus powered by USB port, no external power source required
Power Consumption Max. 0.5W
Dimensions 128 mm (L) × 57 mm (W) × 24 mm (H),   anodized aluminum case
Operating Temperature 0° C ~50° C
System Requirements Windows XP, Vista, 7, 8, 8.1, 10, 11 or above, 32 bit or 64 bit

VT CAMP-2G05 High Pass Filter Frequency Response
Frequency Response of Built-in High Pass Filter (sampled at 48 kHz)


5. Examples

(1) VT CAMP-2G05 with Multi-Instrument Pro + Spectrum 3D Plot

VT CAMP-2G05 with Multi-Instrument Pro + Spectrum 3D Plot

(2) VT CAMP-2G05 with Multi-Instrument Pro + Spectrum 3D Plot + Vibrometer

VT CAMP-2G05 with Multi-Instrument Pro + Spectrum 3D Plot + Vibrometer

(3) Half-sine Shock Test (Video: ShockTestWithMulti-Instrument.mp4 )

Half-Sine Shock Test

(4) Five Types of Shock Response Spectrum of a Half-sine pulse (Note: Multi-Instrument Pro or above is required)

Shock Response Spectrum of a half-sine pulse
Absolute Acceleration Shock Response Spectrum (Multi-Instrument Pro or above is required)

Shock Response Spectrum of a half-sine pulse
Relative Velocity Shock Response Spectrum (Multi-Instrument Full Package is required)

Shock Response Spectrum of a half-sine pulse
Relative Displacement Shock Response Spectrum (Multi-Instrument Full Package is required)

Shock Response Spectrum of a half-sine pulse
Pseudo Velocity Shock Response Spectrum (Multi-Instrument Full Package is required)

Shock Response Spectrum of a half-sine pulse
Equivalent Static Acceleration Shock Response Spectrum (Multi-Instrument Full Package is required)

(5) Damping Ratio and Q factor Measurement using Free Vibration Decay method and Half-Power method (Note: Multi-Instrument Full Package is required)

Shock Response Spectrum of a half-sine pulse

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