Descriptions
This is the input module for the sensors based on the piezoelectric elements capable of measuring a variety phenomena as acceleration, pressure, force. It is able to connect the sensor directly and also able to measure the voltage. It supports the TEDS in the sensor and allows to make setup easily.
It supports various filters capable to have high-precision measurement.
High-precision signal is able to be captured by the high-pass, low-pass, and anti-aliasing filter.
This module supports a variety type of piezoelectric sensors including an acceleration sensor,
and supports direct connection of the sensor.
|
Type of sensor |
Unit of sensitivity (example) |
||
|---|---|---|---|
|
Piezoelectric type sensors |
Charge output type |
Acceleration sensor |
pC/(m/s2)、pC/(9.8m/s2)、pC/g、pC/G |
|
Pressure sensor |
pC/bar、pC/N、pC/Pa | ||
|
Force/Load sensor |
pC/lb、pC/kN | ||
|
Voltage output (IEPE) type |
Acceleration sensor |
mV/(m/s2)、mV/(9.8m/s2)、mV/g、mV/G | |
|
Pressure sensor |
mV/psi、mV/kPa、mV/Pa、mV/bar | ||
|
Force/Load sensor |
mV/lb、mV/lbf、mV/N、mV/kN | ||
The charge output type and voltage output (IEPE) type are available in the piezoelectric type sensor
for measuring a wide variety phenomena. Variety type of sensors are able to use by
setting the sensitivity and the unit of measurement.
| Item | Description | |
|---|---|---|
| Type of module | Charge amplifier module - for sensor based on Piezoelectric element - | |
| Model number | GL7-CHA | |
| Number of input channels | 4 channels | |
| Input method |
All channels isolated unbalanced input, Simultaneous sampling, BNC and Miniature connector (#10-32UNF) |
|
| Sampling speed (interval) | 100 k Samples/s to 1 sample/h (10 μs to 1 hr.) | |
| Built in RAM | 2 million samples for each channel | |
| Input type | Sensor in charge output type, Sensor in IEPE type, Voltage | |
| Input coupling |
Sensor: Charge-RMS, IEPE-RMS Voltage: DC, AC, DC-RMS, AC-RMS |
|
| Measurement range | Acceleration sensor input | 1, 2, 5, 10, 20, 50, 100, 200, 500, 1000, 2000, 5000, 10000, 20000, 50000 m/s2 |
| Voltage input |
DC, AC coupling: 50, 100, 200, 500 mV, 1, 2, 5, 10 V RMS measurement: 20, 50, 100, 200, 500 mVrms, 1, 2, 5 Vrms (Crest Factor in RMS measurement: up to 4 in 20 mVrms to 2 Vrms range, up to 2 in 5 Vrms range) |
|
| Supported sensor sensitivity | Charge output type | 0.01 pC/(m/s2) to 999.9 pC/(m/s2) |
| IEPE type | 0.01 mV/(m/s2) to 999.9 mV/(m/s2) | |
| Measurement accuracy (*1) | Charge output type | ±0.9% of Full Scale ([sensor sensitivity] × [setting range] ≥ 20 pC) |
| IEPE type | ±0.25% of Full Scale ([sensor sensitivity] × [setting range] ≥ 200 mV) | |
| A/D converter | Successive Approximation type, 16bits (effective resolution: 1/40000 of the measuring full range) | |
| Input impedance | 100 kΩ ±5% | |
| Excitation power | 4 or 8 mA (supported voltage: 22 V ±10%) | |
| Maximum input charge signal | Max. 50000 pC | |
| Maximum input voltage | Between (+) / (-) terminal | 25 Vp-p |
| Between channels ((-) terminals) | 25 Vp-p | |
| Between channel / GND | 25 Vp-p | |
| Max. voltage (withstand) | Between channels | 300 Vp-p (1 minute) |
| Between channel / GND | 300 Vp-p (1 minute) | |
| Isolation | Between input / GND | Min. 50 MΩ (at 500 V DC) |
| Common-mode rejection ratio | Min. 80 dB (50/60 Hz, Signal source impedance: Max. 300 Ω) | |
| Frequency response | Charge type | 1.5 Hz to 45 kHz |
| IEPE type | 1 Hz to 45 kHz | |
| Filter | Hi pass | Off, 0.15, 1, 10 Hz |
| Low pass | Off, Line(1.5 Hz), 3, 6, 10, 30, 50, 60, 100, 300, 500 Hz, 1k, 3k, 5k, 10k Hz (in -30dB/oct) | |
| Anti-aliasing | Off, On | |
| Support TEDS | Standard | IEEE 1451.4 Class1 (Temperate No.25) |
| Support | Reading information from the sensor and setting it to module | |
| Calculation function |
Integration (convert measurement to velocity), Double Integration (convert measurement to displacement) |
|
| External dimensions (W x D x H) | Approx. 49 x 136 x 160mm (Excluding projections) | |
| Weight | Approx. 850 g | |
Malaysia
