Charge Amplifiers

Charge amplifiers convert the charge output by a piezoelectric Sensor into a prop or tional voltage, which is used as an input variable for analysis systems, and can be digitized in an analog-to-digital (A/D) converter if necessary. A charge amplifier basically consists of an inverting voltage amplifier with a high open-loop gain and capacitive negative feedback. It relies on a metal oxide semiconduct or field effect transist or (MOSFET) or a junction field effect transist or (JFET) at its input to achieve high insulation resistance and minimize leakage current. If the open-loop gain is sufficiently high, the cable and Sensor capacitance can be neglected, leaving the output voltage dependent on just the charge at the charge amplifier input and the range capacit or .

Charge Amplifiers

Charge amplifiers convert the charge output by a piezoelectric Sensor  into a prop or tional voltage, which is used as an input variable for  analysis systems, and can be digitized in an analog-to-digital (A/D) converter if necessary. A charge amplifier basically consists of an inverting voltage amplifier with a high open-loop gain and capacitive negative feedback. It relies on a metal oxide semiconduct or  field effect transist or  (MOSFET)  or  a junction field effect transist or  (JFET) at its input to achieve high insulation resistance and minimize leakage current. If the open-loop gain is sufficiently high, the cable and Sensor  capacitance can be neglected, leaving the output voltage dependent on just the charge at the charge amplifier input and the range capacit or .

 

振动传感器|振动激励系统|振动分析系统

YMC8101 Miniature Charge Amplifier for industrial Use

Rugged, sealed case; with various connection facilities; also available with range adjusted to a specific Sensor . Its rugged construction makes it particularly suitable for  installation on site in machine monit or ing systems.

振动传感器|振动激励系统|振动分析系统

YMC8102:multiple input type:Charge, Voltage, IEPE; Optional Gain, High-pass filters, Low-pass Filters, Sensitivity unifor mization; Built-in double integrators circuit for  acceleration, displacement and velocity; Switchable for  Gain, LPF, HPF, Sensitivity n or malized. Charge and Voltage input. Int. Battery and Ext. Source Supply.

  图片关键词

图片关键词

YMC 8102A:Desktop low noise Charge amplifier (general test)

YMC 8102T:panel mounted low noise Charge amplifier

Gain, High pass and low pass, n or malized, such as external regulation, voltage (V) and Charge (PE) 2 kinds of input mode, can be positive and negative power supply converter;

振动传感器|振动激励系统|振动分析系统

YMC8103 Multi-channel Charge Amplifier

Features:Assembled Multi-channels (4chs,6 chs and 8 chs available);Small size, high integration ;Three decimal-system unifor mization output(1-10 pC/UNIT);Switchable for  Gain and LPF ;Low noise and wide frequency band(0.3 to 100kHz);Low price, suitable for  multi-point test;Overload indication

 

Model

YMC8101

YMC8102

YMC8102 A/T

YMC8103

Input Range

±5╳104pC

Voltage/IEPE:±10V

Charge:±106pC

Voltage:±10V ;

Charge:±106pC

±105pC

Sensitivity Unifor mization

1 - 9.99

Adjustable

0.100~999

1.00~1099

1.00~10.99

Gain

mV/pC

1 - 100Fixed

0.01,0.1,1,

10,100,1000

0.01,0.1,1,

10,100,1000

1,3,10,30,100

300,1000

High-pass Filters

Hz

1Fixed

A:0.3,1,310,30,100

V:1 ,3,10,30,100

D:1 ,3,10,30,100

0.3,1,3,10,30,100

0.3 (Fixed)

Low-pass Filters

kHz

≤100Fixed

0.3,1,3,10,30,100

0.3,1,3,10,30,100

0.3,1,3,10,30,100

Accuracy

%

±1

A:±1; V:±3 ;D:±3

±1

±1

Noise

μV

≤10

≤5

≤5

≤5

Output Range

V

±5

±10

±10

±10

Power Supply


DC:±14V - ±18V

220V50Hz0.1A

 or  110V60Hz0.2A

220V50Hz0.1A

 or  DC±18V-±27V

220V50Hz0.3A

 or  DC±18V

Operating Temperature

-10 - +50

-10 - +50

-10 - +50

-10 - +50

Weight

kg

0. 2

1.3

1.5

5.0(6 chs)

Size

mm

80×50×24

45×122×200

70×132×200

236×132.5×300

 (6 chs)


苏ICP备13028808号