Director/PDMR Shareholding

Oxford Instruments plc                             

          Notification of transactions by PDMR and Connected Persons           

On 22 April 2014 certain purchases and awards of ordinary shares of 5 pence
each in the capital of Oxford Instruments plc (the "Company") were made under
the all-employee Oxford Instruments Share Incentive Plan (the "SIP") by the
following Executive Directors (PDMR) as follows:

  Executive Director    No. of Dividend 
                        Shares acquired 
                                        
      Kevin Boyd               7        
                                        
    Jonathan Flint             7        

The executive directors applied dividends paid on shares held in the Oxford
Instruments Share Incentive Plan to purchase ordinary shares of 5 pence at a
cost of £13.926 per share as "dividend shares" under the all-employee Oxford
Instruments Share Incentive Plan as detailed above.

The above transactions were undertaken on behalf of the above individuals by
the trustee of the SIP and the shares were purchased on the London Stock
Exchange.

The above notifications are made in accordance with Rule 3.1.4 of the UKLA
Disclosure Rules and Transparency Rules.

Oxford Instruments plc was notified of the above transactions on 23 April 2014.

Name of contact and telephone number for queries: Susan Johnson-Brett, 01865
393324.

For and on behalf of Oxford Instruments plc

Date: 23 April 2014