The charge amplifier, as the name suggests, is a machine and equipment used to amplify the charge.The charge amplifier is mainly composed of four parts, namely the charger, the high -pass filter, and the power supply and the low -pass filter.The charge amplifier cannot be used alone and needs to be used with various machines.
Charge amplifier price
Chengke CT5001 charge amplifier voltage/charge acceleration meter supporting impact/vibration 1040 yuan Chengke CT5002 charge amplifier connected to charge sensor -specific impact/vibration 3700 yuan YE5854A charge amplifier precision school accurate dual -mode charge voltage input signal amplifier 6700 6700Yuan
Principle of charge amplifier
The induction part of most sensors can transform the mechanical amount into a weak charge Q, and the output impedance RA is extremely high.By adapting to the charge, this faint charge is converted into a voltage that is directly proportional to it, and high output impedance to low output impedance.The CA conjugate sensors own capacitor is generally thousands of PF, and 1/2ral determines the low -frequency lower limit of the sensor.
The role of charge amplifier
1. Change the charge: The first role of the charge amplifier is to change the charge, which is one of its important role.The charger change the charge is mainly to amplify the charge.Because when using in some circuits, we need to charge a larger charge, so we need to amplify the charge, and the role of the charge amplifier lies in this.2. Protective electrical appliances: Another role of the charge amplifier is to protect our electrical appliances.Since the electrical appliance we use has its own rated charge, it will appear unsafe factors under some power supply, but after using the charge amplifier, the charge can be adjusted to the appropriate amount.3. Prevent short circuit of power supply: charge amplifier also has the effect of preventing short circuits and protecting the circuit system.Compared to the first two functions, this role is not obvious.However, according to the study, the circuit with a charge amplifier is safer.

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